Restorative Dentistry & Endodontics

Research Articles

Surface properties and susceptibility to staining of a resin composite after brushing with different whitening toothpastes: Aline da Silva Barros, Carolina Meneghin Barbosa, Renata Siqueira Scatolin, Waldemir Francisco Vieira Junior, Laura Nobre Ferraz; Restor Dent Endod 2025;50(1):e6. Published online February 26, 2025; DOI: https://doi.org/10.5395/rde.2025.50.e6

Abstract PDF PubReader ePub: Objectives
This study investigated the effects of different whitening toothpaste (WT) on the surface properties and staining susceptibility of a resin composite.
Methods
Cylindrical samples were prepared with a micro-hybrid resin composite and were randomized into groups according to the toothpaste (n = 12): distilled water (DW), regular toothpaste (RT), WT with silica + pyrophosphate (WT-S/P), WT with pentaphosphate and pyrophosphate (WT-P/P), WT with hydrogen peroxide and pyrophosphate (WT-HP/P) and WT with charcoal and pyrophosphate (WT-Ch/P). The samples were brushed for 825 cycles in an automatic brushing machine, simulating 30 days of brushing. After that, an immersion in coffee (10 mL/sample) was performed for 30 minutes for 30 days. The analyses of color, surface microhardness (SMH), and surface roughness (Ra) were performed at the initial time, after brushing with toothpaste and after immersion in coffee. The ΔL*, Δa*, Δb*, ΔEab, Δand E00 values were calculated comparing after toothpaste with initial time and after coffee with after toothpaste. Data were analyzed using a mixed linear model for repeated measures (SMH), Kruskal-Wallis, Dunn, Friedman, and Nemenyi tests, with α = 0.05.
Results
For ΔL*, the WT-Ch/P group had the lowest values and differed from the other groups comparing the after toothpaste with the initial time interval (p < 0.001). The WT-Ch/P group had the lowest SMH values in after-toothpaste time (p < 0.001). In after-toothpaste time and after coffee time, the WT-S/P group had the highest Ra values and differed from the groups except the WT-Ch/P group (p < 0.001).
Conclusions
The toothpaste composition affects the surface characteristics and susceptibility to staining of the resin composite. The charcoal-based toothpaste had the worst performance for the color analyses and SMH.

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Can discolored dental composites be bleached in depth?: Luca Giachetti, Daniele Scaminaci Russo, Michele Nieri, Francesca Cinelli; Restor Dent Endod 2024;49(3):e23. Published online June 11, 2024; DOI: https://doi.org/10.5395/rde.2024.49.e23

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Objectives

Previous in vitro studies determined the whitening effects of bleaching products on stained resin composite surfaces. This in vitro study aimed to verify the effectiveness of a whitening system on composite resin previously subjected to pigmentation, specifically examining the depth of whitening effectiveness within the material structure.

Materials and Methods

A commercially available nano-filled composite resin was used. Specimens were stained using a coffee-based solution and a 10% carbamide peroxide-based gel was employed as the whitening agent. The pigment’s penetration and the effect of the bleaching gel were evaluated by measuring color (CieLab values) from the outer edge to the inner part of the specimens. Color measurements were taken at 14 points, starting from 0.1 mm from the external perimeter up to 3.0 mm.

Results

Analysis of variance tests showed a statistically significant difference between the Control Group (CG), Pigmentation Group, and Whitening Group. The whitening agent was effective up to 1.5 mm in depth, with Whiteness index (W) values not statistically different from those of CG up to 0.5 mm in depth.

Conclusions

Whitening agents on nano-filled resin composite previously pigmented appear effective in restoring the W to values similar to the original, particularly in the superficial layers of the sample.

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Color Stability of Tooth-Colored Restorative Materials After Exposure to Arabic Coffee and Black Tea: A Systematic Review
Abdulrhman Y Alenezi, Abdulwahab M AlEyada, Yousef H Aldhafiri, Mohammed S Alsubaie, Mohammed S Alshahrani, Mahesh Shenoy
Cureus.2025;[Epub] CrossRef
Comparative evaluation to composite resin bleaching using ozone-enhanced low-concentration hydrogen peroxide
Mahmoud K. AL-Omiri, Dania Sa’ed Hussam Abuherra, Khaled M. AL-Omiri, Ali Y. Alsaeed, Mohammad Alamri, Ali M. Alqahtani, Saleh Ali Alqahtani, Ghadeer Saleh Alwadai, Naif Abogazalah, Edward Lynch
Scientific Reports.2025;[Epub] CrossRef
The effects of mechanical and chemical degradation on the surface roughness, gloss, and color stability of bulk-fill resin composites
Merve Nezir, Hanife Altınışık, Esra Özyurt, Naz Bayar, Mediha Büyükgöze Dindar
BMC Oral Health.2025;[Epub] CrossRef

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Impact of combined at-home bleaching and whitening toothpaste use on the surface and color of a composite resin: Carolina Meneghin Barbosa, Renata Siqueira Scatolin, Waldemir Francisco Vieira-Junior, Marcia Hiromi Tanaka, Laura Nobre Ferraz; Restor Dent Endod 2023;48(3):e26. Published online July 26, 2023; DOI: https://doi.org/10.5395/rde.2023.48.e26

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Objective

This in vitro study aimed to evaluate the effects of different whitening toothpastes on a composite resin during at-home bleaching with 10% carbamide peroxide.

Materials and Methods

Sixty samples (7 mm × 2 mm) were used for color and roughness analyses, while another 60 samples (3 mm × 2 mm) were utilized to assess microhardness. The factors analyzed included toothpaste, for which 5 options with varying active agents were tested (distilled water; conventional toothpaste; whitening toothpaste with abrasive agents; whitening toothpaste with abrasive and chemical agents; and whitening toothpaste with abrasive, chemical, and bleaching agents). Brushing and application of whitening gel were performed for 14 days. Surface microhardness (SMH), surface roughness (Ra), and color (∆L*, ∆a*, ∆b, ∆E*_ab, and ∆E₀₀) were analyzed. The Ra and SMH data were analyzed using mixed generalized linear models for repeated measures, while the color results were assessed using the Kruskal-Wallis and Dunn tests.

Results

Between the initial and final time points, all groups demonstrated significant increases in Ra and reductions in SMH. No significant differences were found between groups for SMH at the final time point, at which all groups differed from the distilled water group. Conventional toothpaste exhibited the lowest Ra, while whitening toothpaste with abrasive agent had the highest value. No significant differences were observed in ∆L*, ∆a*, and ∆b.

Conclusions

While toothpaste composition did not affect the color stability and microhardness of resin composite, combining toothbrushing with whitening toothpaste and at-home bleaching enhanced the change in Ra.

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Current evidence on the impact of whitening toothpastes on dental restorative materials: A comprehensive review
Soyeon Kim, Shin Hye Chung, Satoshi Yamaguchi, Taro Arima, Young-Seok Park
Journal of Prosthodontic Research.2026; 70(1): 4. CrossRef
At‐Home and In‐Office Bleaching Protocols on the Color Match of Restorations Made With Single‐Shade Composites
Luciana Vasconcelos Ramos, Dayana Fernandes Rocha Aparicio, André Luis Faria‐e‐Silva, Maíra do Prado, Andréa Vaz Braga Pintor, Marcela Baraúna Magno
Journal of Esthetic and Restorative Dentistry.2025; 37(6): 1567. CrossRef
Surface properties and susceptibility to staining of a resin composite after brushing with different whitening toothpastes
Aline da Silva Barros, Carolina Meneghin Barbosa, Renata Siqueira Scatolin, Waldemir Francisco Vieira Junior, Laura Nobre Ferraz
Restorative Dentistry & Endodontics.2025; 50(1): e6. CrossRef
Dental Care Behaviors and Oral Health Challenges in School-Age Populations
Ahmad Mahmoud Saleh , Aishah Al Daragemeh , Asmaa Morgan Farahat Khatap , Prakash Palanivelu , Arul Vellaiyan , Elturabi Elsayed Ebrahim , Ahmad Rayan , Nermen Abdelftah Mohamed
Salud, Ciencia y Tecnología.2025; 5: 1372. CrossRef
Effect of bleaching and repolishing on whiteness change and staining susceptibility of resin-based materials
Sultan Aktuğ Karademir, Samet Atasoy, Beyza Yılmaz
BMC Oral Health.2024;[Epub] CrossRef
Influence of using different toothpaste during bleaching with violet LED light (405 nm) on the colour and roughness of dental enamel: an in vitro study
Franco Sousa Leticia, Mazzalli Redondo Victor, Ferraz Nobre Laura, Vitti Pino Rafael, Renata Siqueira Scatolin
Lasers in Medical Science.2024;[Epub] CrossRef
Effect of coffee staining and simulated oral hygiene methods on the color and translucency of a nanoceramic resin
Luiz Felipe Schneider, Bruna Mueller, Rubens Nisie Tango, Claudia Angela Maziero Volpato
Journal of Esthetic and Restorative Dentistry.2024; 36(7): 1020. CrossRef

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Epigallocatechin-3-gallate prior to composite resin in abfraction lesions: a split-mouth randomized clinical trial: Luísa Valente Gotardo Lara Alves, Lisiane Martins Fracasso, Thiago Vinicius Cortez, Aline Evangelista Souza-Gabriel, Silmara Aparecida Milori Corona; Restor Dent Endod 2023;48(2):e13. Published online March 20, 2023; DOI: https://doi.org/10.5395/rde.2023.48.e13

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Objectives

Natural extracts have been investigated as a biomimetic strategy to mechanically strengthen the collagen network and control the biodegradation of extracellular matrix. This study evaluated the effect of epigallocatechin-3-gallate (EGCG) on abfraction lesions prior to the composite resin.

Materials and Methods

The sample consisted of 30 patients (aged between 28 and 60 years) with abfraction lesions located in 2 homologous premolars. The teeth were randomly assigned according to dentin treatment: 0.02% EGCG solution or distilled water (control). After enamel acid etching, the solutions were applied immediately for 1 minute. The teeth were restored with Universal Adhesive (3M) and Filtek Z350 XT (3M). Analyzes were done by 2 independent examiners using modified USPHS (retention, secondary caries, marginal adaptation, and postoperative sensitivity) and photographic (color, marginal pigmentation, and anatomical form) criteria at baseline (7 days) and final (18 months). The data analysis used Friedman and Wilcoxon signed-rank tests (α = 0.05).

Results

At baseline, all restorations were evaluated as alpha for all criteria. After 18 months, restorations were evaluated as alpha for secondary caries, color, and marginal pigmentation. There was significant difference between baseline and 18 months (p = 0.009) for marginal adaptation and postoperative sensitivity (p = 0.029), but no significant difference were verified between treatments (p = 0.433). The EGCG group had a restoration retention rate of 93.3%, while the control group had 96.7%.

Conclusions

The application of EGCG solution on abfraction lesions did not significantly influence the survival of the restorations based on clinical and photographic criteria.

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Therapeutic potential of flavonoids in erosive tooth wear management: a scoping review
Gabriel Pereira Nunes, Renata de Oliveira Alves, Geórgia Rondó Peres, Priscila Toninatto Alves de Toledo, Aline Rogéria Freire de Castilho
Clinical Oral Investigations.2025;[Epub] CrossRef

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Effects of surrounding and underlying shades on the color adjustment potential of a single-shade composite used in a thin layer: Mariana Silva Barros, Paula Fernanda Damasceno Silva, Márcia Luciana Carregosa Santana, Rafaella Mariana Fontes Bragança, André Luis Faria-e-Silva; Restor Dent Endod 2023;48(1):e7. Published online December 29, 2022; DOI: https://doi.org/10.5395/rde.2023.48.e7

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Objectives

This study aimed to evaluate the surrounding and underlying shades’ effect on the color adjustment potential (CAP) of a single-shade composite used in a thin layer.

Materials and Methods

Cylinder specimens (1.0 mm thick) were built with the Vittra APS Unique composite, surrounded (dual specimens) or not (simple specimens) by a control composite (shade A1, A2, or A3). Simple specimens were also built only with the control composites. Each specimen’s color was measured against white and black backgrounds or the simple control specimens with a spectrophotometer (CIELAB system). The whiteness index for dentistry (WI_D) and translucency parameters (TP₀₀) were calculated for simple specimens. Differences (ΔE₀₀) in color between the simple/dual specimens and the controls were calculated. The CAP was calculated based on the ratios between data from simple and dual specimens.

Results

The Vittra APS Unique composite showed higher WI_D and TP₀₀ values than the controls. The highest values of ΔE₀₀ were observed among simple specimens. The color measurements of Vittra APS Unique (simple or dual) against the control specimens presented the lowest color differences. Only surrounding the single-shade composite with a shaded composite barely impacted the ΔE₀₀. The highest CAP values were obtained using a shaded composite under simple or dual specimens.

Conclusions

The CAP of Vittra APS Unique was strongly affected by the underlying shade, while surrounding this composite with a shaded one barely affected its color adjustment.

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At‐Home and In‐Office Bleaching Protocols on the Color Match of Restorations Made With Single‐Shade Composites
Luciana Vasconcelos Ramos, Dayana Fernandes Rocha Aparicio, André Luis Faria‐e‐Silva, Maíra do Prado, Andréa Vaz Braga Pintor, Marcela Baraúna Magno
Journal of Esthetic and Restorative Dentistry.2025; 37(6): 1567. CrossRef
Evaluation of color matching of three single-shade composites employing simulated 3D printed cavities with different thicknesses using CIELAB and CIEDE2000 color difference formulae
Engin Kariper, Aylin Cilingir
REVIEWS ON ADVANCED MATERIALS SCIENCE.2025;[Epub] CrossRef
Impact of kombucha, coffee, and turmeric beverages on the color stability of a single-shade versus a multi-shade resin-based composite
Hanin E. Yeslam, Abdulaziz F. Bakhsh
PeerJ.2025; 13: e19759. CrossRef
Comparative Study of Esthetic Outcome of Pedo Shades of Composite Resin—A Randomized Controlled Trial: In Vivo and In Vitro Study
Priyanka Raj, Shikha Choubey, Divya Doneria, Diksha Bhat, Shivani Mathur, Shailja Sinha
International Journal of Clinical Pediatric Dentistry.2025; 18(S1): S22. CrossRef
Influence of cavity wall thickness on the color adjustment potential of single-shade resin composites
Fabrício Luscino Alves de Castro, Letícia Brandão Durand
The Journal of the American Dental Association.2024; 155(7): 605. CrossRef
Assessing color mismatch in single-shade composite resins for enamel replacement
Rafaella Mariana Fontes de Bragança, Diana Leyva Del Rio, Luiz Alves Oliveira-Neto, William Michael Johnston
The Journal of Prosthetic Dentistry.2024; 132(3): 613.e1. CrossRef
Color discrepancy of single-shade composites at different distances from the interface measured using cell phone images
Márcia Luciana Carregosa Santana, Gabriella de Jesus Santos Livi, André Luis Faria-e-Silva
Restorative Dentistry & Endodontics.2024;[Epub] CrossRef
Is It Possible for Single-shade Composites to Mimic the Color, Lightness, Chroma, and Hue of Other Single-shade Composites? An In Vitro Study
M Buldur, G Ayan
Operative Dentistry.2024; 49(6): 691. CrossRef
Color evaluation of a one-shade used for restoration of non-carious cervical lesions: an equivalence randomized clinical trial
Michael Willian Favoreto, Amanda de Oliveira de Miranda, Thalita P. Matos, Andrea dos Santos de Castro, Mylena de Abreu Cardoso, Julia Beatriz, Jenny Collantes-Acuña, Alessandra Reis, Alessandro Dourado Loguercio
BMC Oral Health.2024;[Epub] CrossRef
Influence of Thickness on the Translucency Parameter and Whiteness Index of Single-Shade Resin Composites
Ö Yağcı, M Fidan
Operative Dentistry.2024; 49(2): 189. CrossRef
A Comparative Study of the Sensitivity and Specificity of the Ishihara Test With Various Displays
Thomas Klinke, Wolfgang Hannak, Klaus Böning, Holger Jakstat
International Dental Journal.2024; 74(4): 892. CrossRef
Color match evaluation using instrumental method for three single-shade resin composites before and after in-office bleaching
Aylin Cilingir, Engin Kariper
REVIEWS ON ADVANCED MATERIALS SCIENCE.2023;[Epub] CrossRef
The role of interface distance and underlying substrate on the color adjustment potential of single‐shade composites
Gabriella Jesus Santos de Livi, Tauan Rosa Santana, Rafaella Mariana Fontes Bragança, Rosa Maria Viana de Bragança Garcez, André Luis Faria‐e‐Silva
Journal of Esthetic and Restorative Dentistry.2023; 35(8): 1279. CrossRef

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Relationship between battery level and irradiance of light-curing units and their effects on the hardness of a bulk-fill composite resin: Fernanda Harumi Oku Prochnow, Patricia Valéria Manozzo Kunz, Gisele Maria Correr, Marina da Rosa Kaizer, Carla Castiglia Gonzaga; Restor Dent Endod 2022;47(4):e45. Published online November 3, 2022; DOI: https://doi.org/10.5395/rde.2022.47.e45

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Objectives

This study evaluated the relationship between the battery charge level and irradiance of light-emitting diode (LED) light-curing units (LCUs) and how these variables influence the Vickers hardness number (VHN) of a bulk-fill resin.

Materials and Methods

Four LCUs were evaluated: Radii Plus (SDI), Radii-cal (SDI), Elipar Deep Cure (Filtek Bulk Fill, 3M Oral Care), and Poly Wireless (Kavo Kerr). Irradiance was measured using a radiometer every ten 20-second activations until the battery was discharged. Disks (4 mm thick) of a bulk-fill resin (Filtek Bulk Fill, 3M Oral Care) were prepared, and the VHN was determined on the top and bottom surfaces when light-cured with the LCUs with battery levels at 100%, 50% and 10%. Data were analyzed by 2-way analysis of variance, the Tukey’s test, and Pearson correlations (α = 5%).

Results

Elipar Deep Cure and Poly Wireless showed significant differences between the irradiance when the battery was fully charged versus discharged (10% battery level). Significant differences in irradiance were detected among all LCUs, within each battery condition tested. Hardness ratios below 80% were obtained for Radii-cal (10% battery level) and for Poly Wireless (50% and 10% battery levels). The battery level showed moderate and strong, but non-significant, positive correlations with the VHN and irradiance.

Conclusions

Although the irradiance was different among LCUs, it decreased in half of the devices along with a reduction in battery level. In addition, the composite resin effectiveness of curing, measured by the hardness ratio, was reduced when the LCUs’ battery was discharged.

Citations

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Effect of erosive solutions and thermal cycling on the surface properties of universal injectable and regular consistency resin composites
Ahmed Abbas Rhaif, Hoda Saleh Ismail, Tawakol Ahmed Ahmed Enab, Nadia Mohamed Zaghloul
BMC Oral Health.2025;[Epub] CrossRef
Effect of Battery Level During Successive Charging Cycles on the Performance of Certified and Low-cost Uncertified Light-curing Units Available on E-commerce
TS Peres, G Oliveira, SP da Silva Sakamoto, M da Silva Faria, HL Carlo, CJ Soares
Operative Dentistry.2024; 49(6): 673. CrossRef
Influence of Exposure Distance on Light Irradiance of Dental Curing Lamps in Various Operating Modes
Anna Lehmann, Kacper Nijakowski, Marta Mroczyk, Filip Podgórski, Beata Czarnecka, Anna Surdacka
Applied Sciences.2024; 14(21): 9999. CrossRef
ESTADO DA INTENSIDADE LUMINOSA DAS LÂMPADAS DE FOTOPOLIMERIZAÇÃO DAS CLÍNICAS ODONTOLÓGICAS DOS CENTROS DE SAÚDE DA CIDADE DE CUENCA
Milton Alexis Quinchiguano Caraguay, David Ismael Bravo Achundia , Esteban Eduardo Amoroso Calle, Manuel Estuardo Bravo Calderon
RECISATEC - REVISTA CIENTÍFICA SAÚDE E TECNOLOGIA - ISSN 2763-8405.2023; 3(6): e36296. CrossRef

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Surface gloss, gloss retention, and color stability of 2 nano-filled universal resin composites: Gustavo Fabián Molina, Ricardo Juan Cabral, Ignacio Mazzola, Michael Burrow; Restor Dent Endod 2022;47(4):e43. Published online October 31, 2022; DOI: https://doi.org/10.5395/rde.2022.47.e43

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Objectives

This study compared the surface gloss (SG), gloss retention (GR), and color stability (CS) of 2 universal resin composites after chemical (CA) and mechanical (MA) aging.

Materials and Methods

Twenty disc-shaped samples of G-ænial A´Chord (GC-Europe) and Filtek Universal (3M-ESPE) were polished with sequential abrasive papers. For CA, specimens were stored in 1 mL of 75% ethanol for 15 days at 37°C, and readings (SG, GR, and CS) were obtained at baseline and 5, 10, and 15 days. For MA, specimens were subjected to 10,750 simulated brushing cycles. SG and CS were evaluated after every 3,583 cycles. SG was measured with a glossmeter (geometrical configuration: 60°), and values were expressed in gloss units. Color was measured with a spectrophotometer using the CIE-L*a*b* color system. The Student’s t-test, 1-way analysis of variance, and Scheffé test were used for statistical analysis (α = 0.05).

Results

G-ænial presented significantly higher SG values than Filtek (p = 0.02), with GR reductions of 5.2% (CA) and 5.3% (MA) for G-ænial and 7.6% (CA) and 7.2% (MA) for Filtek. The aging protocol had no statistically significant effect on SG or GR (p = 0.25) from baseline to the final readings. G-ænial–MA presented the lowest color difference (∆E = 1.8), and G-ænial–CA and Filtek–CA had the largest changes (∆E = 8.6 and ∆E = 11.8, respectively).

Conclusion

G-ænial presented higher SG values and better CS. Both restorative materials demonstrated acceptable GR and CS. Aging protocols impacted these properties negatively.

Citations

Citations to this article as recorded by

Color stability, surface roughness, and surface morphology of universal composites
Mohammad Meniawi, Nazlı Şirinsükan, Esra Can
Odontology.2026; 114(1): 149. CrossRef
Surface roughness of composite resins subjected to brushing with whitening toothpastes: an in vitro study
Nicolle Madruga Ramos FERREIRA, Vinicius Funghetto LIPPERT, Amanda Baptista da Silva HECK, Ana Maria SPOHR, Marcel Ferreira KUNRATH, Carlos Alberto FELDENS, Paulo Floriani KRAMER
Brazilian Oral Research.2025;[Epub] CrossRef
Evaluation of Color Stability and Surface Abrasion of Nano-modified Glass Ionomer Cement with Dentifrices: An In Vitro Study
Jessy Paulraj, Subhabrata Maiti, Harini Palani
International Journal of Prosthodontics and Restorative Dentistry.2025; 15(1): 10. CrossRef
Security inks with silanized zinc oxide quantum dots and cellulose ethers for the safeguarding of cultural heritage objects
Andrea Louise Matulac, Themis Krasoudaki, Francesca Battaglia, Carlo Spadoni, Martina Piletti, Daniela Iacopino, Rodorico Giorgi
Applied Materials Today.2025; 44: 102718. CrossRef
Gastric acid challenge: Mechanical proficiency and surface gloss of tooth-colored restorative materials
Ozge Gizem Yenidunya, Tugba Misilli, Ebru Yilmaz
BMC Oral Health.2025;[Epub] CrossRef
Impact of in-office bleaching agents on the optical properties of universal resin composites: an in vitro analysis
Esra Özyurt, Merve Nezir, Hanife Altınışık, Mediha Büyükgöze Dindar
BMC Oral Health.2025;[Epub] CrossRef
Surface gloss and micro‐CT analysis of additively and subtractively manufactured resin composites and zirconia after simulated tooth brushing with different bristle types and toothpaste formulations: An in vitro study
Ahmet Faruk Ertürk, Rafat Sasany, Seyed Ali Mosaddad, Merve Yelken Kendirci
Journal of Prosthodontics.2025;[Epub] CrossRef
Aging and Staining Effects on Optical Properties of Flowable Composites
M. M. Sly, Y. Korkmaz‐Ceyhan, F. Dini, R. L. Ocampo Escobedo, E. Abram, R. D. Paravina
Journal of Biomedical Materials Research Part B: Applied Biomaterials.2025;[Epub] CrossRef
Evaluation of The Effect of In-Office Bleaching Agent on Mechanical Properties of Different Single-Shade Resin Composites: An In-Vitro Study
Merve Nezir, Hanife Altınışık, Esra Özyurt
ADO Klinik Bilimler Dergisi.2025; 14(3): 197. CrossRef
Surface gloss changes in 3D-printed resin materials following different polishing procedures and aging protocols
Ilayda Yumak, Hayal Boyacioglu, Lezize Sebnem Turkun
BMC Oral Health.2025;[Epub] CrossRef
The Gloss Retention of Esthetic Restorations Following Simulated Brushing with Charcoal Oral Products: An In-Vitro Study
Fadia Awadalkreem, Nancy S Farghal, Nadin A Abouelhonoud, Raiyan I Khan
The Journal of Contemporary Dental Practice.2024; 25(5): 473. CrossRef
Effect of different finishing and polishing systems on surface properties of universal single shade resin-based composites
Ghada Alharbi, Hend NA Al Nahedh, Loulwa M. Al-Saud, Nourah Shono, Ahmed Maawadh
BMC Oral Health.2024;[Epub] CrossRef
The Effect of Chemical Degradation and Polishing on the Gloss of Composite Dental Materials
Ružica Zovko, Stipo Cvitanović, Mirela Mabić, Zdenko Šarac, Anka Ćorić, Domagoj Glavina, Kristina Goršeta
Materials.2023; 16(10): 3727. CrossRef

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Comparison of instrumental methods for color change assessment of Giomer resins: Luiza de Almeida Queiroz Ferreira, Rogéli Tibúrcio Ribeiro da Cunha Peixoto, Cláudia Silami de Magalhães, Tassiana Melo Sá, Monica Yamauti, Francisca Daniele Moreira Jardilino; Restor Dent Endod 2022;47(1):e8. Published online February 3, 2022; DOI: https://doi.org/10.5395/rde.2022.47.e8

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Objectives

The aim of this study was to compare the color change of the Giomer resin composite (Beautifil-Bulk) by using photographs obtained with a smartphone (iPhone 6S) associated with Adobe Photoshop software (digital method), with the spectrophotometric method (Vita Easyshade) after immersion in different pigment solutions.

Materials and Methods

Twenty resin composite samples with a diameter of 15.0 mm and thickness of 1.0 mm were confectioned in A2 color (n = 5). Photographs and initial color readings were performed with a smartphone and spectrophotometer, respectively. Then, samples were randomly divided and subjected to cycles of immersion in distilled water (control), açai, Coke, and tomato sauce, 3 times a day, 20 minutes for 7 days. Later, new photographs and color readings were taken.

Results

The analysis (2-way analysis of variance, Holm-Sidak, p < 0.05) demonstrated no statistical difference (p < 0.005) between the methods in all groups. Similar color changes were observed for all pigment solutions when using the spectrophotometric method. For the digital method, all color changes were clinically unacceptable, with distilled water and tomato sauce similar to each other and with statistical differences (p < 0.005) for Coke and açai.

Conclusions

Only the tomato sauce produced a color change above the acceptability threshold using both methods of color assessment. The spectrophotometric and digital methods produce different patterns of color change. According to our results, the spectrophotometric method is more recommended in color change assessment.

Citations

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The effects of mechanical and chemical degradation on the surface roughness, gloss, and color stability of bulk-fill resin composites
Merve Nezir, Hanife Altınışık, Esra Özyurt, Naz Bayar, Mediha Büyükgöze Dindar
BMC Oral Health.2025;[Epub] CrossRef
Are Sculptable Bulk‐Fill Composites Susceptible to Color Change: A Systematic Review
Jamieson Wong, Constance Yeo, Michelle The, Filip Taneski, Uros Josic, Lorenzo Breschi, Vesna Miletic
Journal of Esthetic and Restorative Dentistry.2025;[Epub] CrossRef
Color Image Expression through CIE L*a*b* System in Foods
Hyun-Woong Choi, Seong-Eun Park, Hong-Seok Son
Journal of the Korean Society of Food Science and Nutrition.2023; 52(2): 223. CrossRef

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A 3-year retrospective study of clinical durability of bulk-filled resin composite restorations: Muhittin Ugurlu, Fatmanur Sari; Restor Dent Endod 2022;47(1):e5. Published online December 30, 2021; DOI: https://doi.org/10.5395/rde.2022.47.e5

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Objectives

This study aimed to assess the clinical longevity of a bulk-fill resin composite in Class II restorations for 3-year.

Materials and Methods

Patient record files acquired from the 40 patients who were treated due to needed 2 similar sizes Class II composite restorations were used for this retrospective study. In the experimental cavity, the flowable resin composite SDR was inserted in the dentinal part as a 4 mm intermediate layer. A 2 mm coverage layer with a nano-hybrid resin composite (CeramX) was placed on SDR. The control restoration was performed by an incremental technique of 2 mm using the nano-hybrid resin composite. The restorations were blindly assessed by 2 calibrated examiners using modified United States Public Health Service criteria at baseline and 1, 2, and 3 years. The data were analyzed using non-parametric tests (p = 0.05).

Results

Eighty Class II restorations were evaluated. After 3-years, 4 restorations (5%) failed, 1 SDR + CeramX, and 3 CeramX restorations. The annual failure rate (AFR) of the restorations was 1.7%. The SDR + CeramX group revealed an AFR of 0.8%, and the CeramX group an AFR of 2.5% (p > 0.05). Regarding anatomical form and marginal adaptation, significant alterations were observed in the CeramX group after 3-years (p < 0.05). The changes in the color match were observed in each group over time (p < 0.05).

Conclusions

The use of SDR demonstrated good clinical durability in deep Class II resin composite restorations.

Citations

Citations to this article as recorded by

Evaluation of Surface Roughness and Microhardness of New Generation Bulk-Fill Composites
Zehra SÜSGÜN YILDIRIM, Ezgi SONKAYA, Zeliha Gonca BEK KÜRKLÜ
Cumhuriyet Dental Journal.2023; 26(2): 180. CrossRef
Damping Behaviour and Mechanical Properties of Restorative Materials for Primary Teeth
Thomas Niem, Roland Frankenberger, Stefanie Amend, Bernd Wöstmann, Norbert Krämer
Materials.2022; 15(21): 7698. CrossRef

3,694 View
28 Download
1 Web of Science
2 Crossref

Errors in light-emitting diodes positioning when curing bulk fill and incremental composites: impact on properties after aging: Abdulrahman A. Balhaddad, Isadora M. Garcia, Haifa Maktabi, Maria Salem Ibrahim, Qoot Alkhubaizi, Howard Strassler, Fabrício M. Collares, Mary Anne S. Melo; Restor Dent Endod 2021;46(4):e51. Published online September 24, 2021; DOI: https://doi.org/10.5395/rde.2021.46.e51

Abstract PDF PubReader ePub

Objectives

This study aimed to evaluate the effect of improper positioning single-peak and multi-peak lights on color change, microhardness of bottom and top, and surface topography of bulk fill and incremental composites after artificial aging for 1 year.

Materials and Methods

Bulk fill and incremental composites were cured using multi-peak and single-peak light-emitting diode (LED) following 4 clinical conditions: (1) optimal condition (no angulation or tip displacement), (2) tip-displacement (2 mm), (3) slight tip angulation (α = 20°) and (4) moderate tip angulation (α = 35°). After 1-year of water aging, the specimens were analyzed for color changes (ΔE), Vickers hardness, surface topography (Ra, Rt, and Rv), and scanning electron microscopy.

Results

For samples cured by single-peak LED, the improper positioning significantly increases the color change compared to the optimal position regardless of the type of composite (p < 0.001). For multi-peak LED, the type of resin composite and the curing condition displayed a significant effect on ΔE (p < 0.001). For both LEDs, the Vickers hardness and bottom/top ratio of Vickers hardness were affected by the type of composite and the curing condition (p < 0.01).

Conclusions

The bulk fill composite presented greater resistance to wear, higher color stability, and better microhardness than the incremental composite when subjected to improper curing. The multi-peak LED improves curing under improper conditions compared to single-peak LED. Prevention of errors when curing composites requires the attention of all personnel involved in the patient's care once the clinical relevance of the appropriate polymerization reflects on reliable long-term outcomes.

Citations

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A clinical survey of the output intensity of 50 light-curing units in dental clinics across Davangere and Mangalore region using a spectrometer system
Elizbeth Christy Jose, Sakshi Jha, Prema Shantagouda Biradar, J Arun, TN Nandini, Thushara Mohanan
International Journal of Oral Health Sciences.2025; 15(1): 41. CrossRef
The demineralization resistance and mechanical assessments of different bioactive restorative materials for primary and permanent teeth: an in vitro study
Maria Salem Ibrahim, Fahad Rakad Aldhafeeri, Abdullah Sami Banaemah, Mana S. Alhaider, Yousif A. Al-Dulaijan, Abdulrahman A. Balhaddad
BDJ Open.2024;[Epub] CrossRef
Inorganic Compounds as Remineralizing Fillers in Dental Restorative Materials: Narrative Review
Leena Ibraheem Bin-Jardan, Dalal Ibrahim Almadani, Leen Saleh Almutairi, Hadi A. Almoabid, Mohammed A. Alessa, Khalid S. Almulhim, Rasha N. AlSheikh, Yousif A. Al-Dulaijan, Maria S. Ibrahim, Afnan O. Al-Zain, Abdulrahman A. Balhaddad
International Journal of Molecular Sciences.2023; 24(9): 8295. CrossRef

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Color assessment of resin composite by using cellphone images compared with a spectrophotometer: Rafaella Mariana Fontes de Bragança, Rafael Ratto Moraes, André Luis Faria-e-Silva; Restor Dent Endod 2021;46(2):e23. Published online April 5, 2021; DOI: https://doi.org/10.5395/rde.2021.46.e23

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Objectives

This study assessed the reliability of digital color measurements using images of resin composite specimens captured with a cellphone.

Materials and Methods

The reference color of cylindrical specimens built-up with the use of resin composite (shades A1, A2, A3, and A4) was measured with a portable spectrophotometer (CIELab). Images of the specimens were obtained individually or pairwise (compared shades in the same photograph) under standardized parameters. The color of the specimens was measured in the images using RGB system and converted to CIELab system using image processing software. Whiteness index (WI_D) and color differences (ΔE₀₀) were calculated for each color measurement method. For the cellphone, the ΔE₀₀ was calculated between the pairs of shades in separate images and in the same image. Data were analyzed using 2-way repeated-measures analysis of variance (α = 0.05). Linear regression models were used to predict the reference ΔE₀₀ values of those calculated using color measured in the images.

Results

Images captured with the cellphone resulted in different WI_D values from the spectrophotometer only for shades A3 and A4. No difference to the reference ΔE₀₀ was observed when individual images were used. In general, a similar ranking of ΔE₀₀ among resin composite shades was observed for all methods. Stronger correlation coefficients with the reference ΔE₀₀ were observed using individual than pairwise images.

Conclusions

This study showed that the use of cellphone images to measure the color difference seems to be a feasible alternative providing outcomes similar to those obtained with the spectrophotometer.

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Hatice Tepe, Ozge Celiksoz, Batu Can Yaman
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Márcia Luciana Carregosa Santana, Gabriella de Jesus Santos Livi, André Luis Faria-e-Silva
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Luiza de Almeida Queiroz Ferreira, Rogéli Tibúrcio Ribeiro da Cunha Peixoto, Cláudia Silami de Magalhães, Tassiana Melo Sá, Monica Yamauti, Francisca Daniele Moreira Jardilino
Restorative Dentistry & Endodontics.2022;[Epub] CrossRef

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Review Article

Wear of contemporary dental composite resin restorations: a literature review: Dimitrios Dionysopoulos, Olga Gerasimidou; Restor Dent Endod 2021;46(2):e18. Published online February 25, 2021; DOI: https://doi.org/10.5395/rde.2021.46.e18

Abstract PDF PubReader ePub

Composite resins are the most commonly used dental restorative materials after minimally invasive dental procedures, and they offer an aesthetically pleasing appearance. An ideal composite restorative material should have wear properties similar to those of tooth tissues. Wear refers to the damaging, gradual loss or deformation of a material at solid surfaces. Depending on the mechanism of action, wear can be categorized as abrasive, adhesive, fatigue, or corrosive. Currently used composite resins cover a wide range of materials with diverse properties, offering dental clinicians multiple choices for anterior and posterior teeth. In order to improve the mechanical properties and the resistance to wear of composite materials, many types of monomers, silane coupling agents, and reinforcing fillers have been developed. Since resistance to wear is an important factor in determining the clinical success of composite resins, the purpose of this literature review was to define what constitutes wear. The discussion focuses on factors that contribute to the extent of wear as well as to the prevention of wear. Finally, the behavior of various types of existing composite materials such as nanohybrid, flowable, and computer-assisted design/computer-assisted manufacturing materials, was investigated, along with the factors that may cause or contribute to their wear.

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Research Article

Effect of dental bleaching on the microhardness and surface roughness of sealed composite resins: Renan Aparecido Fernandes, Henrico Badaoui Strazzi-Sahyon, Thaís Yumi Umeda Suzuki, André Luiz Fraga Briso, Paulo Henrique dos Santos; Restor Dent Endod 2020;45(1):e12. Published online January 10, 2020; DOI: https://doi.org/10.5395/rde.2020.45.e12

Abstract PDF PubReader ePub

Objectives

The aim of this in vitro study was to evaluate the microhardness and surface roughness of composite resins before and after tooth bleaching procedures.

Materials and Methods

Sixty specimens were prepared of each composite resin (Filtek Supreme XT and Opallis), and BisCover LV surface sealant was applied to half of the specimens. Thirty enamel samples were obtained from the buccal and lingual surfaces of human molars for use as the control group. The surface roughness and microhardness were measured before and after bleaching procedures with 35% hydrogen peroxide or 16% carbamide (n = 10). Data were analyzed using 1-way analysis of variance and the Fisher test (α = 0.05).

Results

Neither hydrogen peroxide nor carbamide peroxide treatment significantly altered the hardness of the composite resins, regardless of surface sealant application; however, both treatments significantly decreased the hardness of the tooth samples (p < 0.05). The bleaching did not cause any change in surface roughness, with the exception of the unsealed Opallis composite resin and dental enamel, both of which displayed an increase in surface roughness after bleaching with carbamide peroxide (p < 0.05).

Conclusions

The microhardness and surface roughness of enamel and Opallis composite resin were influenced by bleaching procedures.

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Cumhuriyet Dental Journal.2024; 27(1): 30. CrossRef
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Does the combination of whitening toothpaste and hydrogen peroxide bleaching increase the surface roughness and change the morphology of a nanofilled composite?
Cecília Pereira da Silva Braga Tenório, Matheus Kury, Geyse Maria dos Santos Muniz Mota, Cecília Pedroso Turssi, Flávia Lucisano Botelho do Amaral, Vanessa Cavalli
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Effect of peroxide‐free and peroxide‐based in‐office bleaching on the surface and mechanical properties of CAD/CAM esthetic restorative materials
Majed M. Alsarani, Aftab Ahmed Khan, Leonel S. J. Bautista, Hanan Alsunbul, Jukka P. Matinlinna
European Journal of Oral Sciences.2024;[Epub] CrossRef
Effect of Repolishing on Color Stability, Translucency, and Surface Roughness of Aged Monochromatic Dental Composites
Mohamed M. Abdul-Monem, Mohamed A. Hussein, Mona G. Abdelrehim
European Journal of General Dentistry.2024; 13(03): 240. CrossRef
Color changes of nanofiller composite resin after glycerin application immersed in turmeric extract
Sukaton, Galih Sampoerno, Widyajeng Ayu Laksmi, Daradhasih Bestari Santiaji
Conservative Dentistry Journal.2023; 13(1): 37. CrossRef
Effects of Dental Bleaching Agents on the Surface Roughness of Dental Restoration Materials
Alexandru Dan Popescu, Mihaela Jana Tuculina, Oana Andreea Diaconu, Lelia Mihaela Gheorghiță, Claudiu Nicolicescu, Cristian Niky Cumpătă, Cristiana Petcu, Jaqueline Abdul-Razzak, Ana Maria Rîcă, Ruxandra Voinea-Georgescu
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Sushritha Sricharan, Swaroop Hegde, Narmada J., Indiresha H. Narayana, Chatura Mohan, Nithin K. Shetty
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Ruwaida Z Alshali, Mohammed A AlQahtani, Dalea M Bukhary, Mlak A Alzahrani, Shatha S Alsoraihi, Majed A Alqahtani
Journal of Applied Biomaterials & Functional Materials.2023;[Epub] CrossRef
Effect of bleaching with 15% carbamide peroxide on color stability of microhybrid, nanohybrid, and nanofilled resin composites, each in 3 staining solutions (coffee, cola, red grape juice): A 3-phase study
Azadeh Ghaemi, Sanaz Sharifishoshtari, Mohsen Shahmoradi, Hossein Akbari, Parisa Boostanifard, Sepideh Bagheri, Mohammadreza Shokuhifar, Negin Ashoori, Vahid Rakhshan
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Micro-Hardness and Surface Roughness of Bulk-Fill Composite Resin: Effect of Surface Sealant Application and Two Bleaching Regimens
Reham Mohamad Attia, Eman Mohamed Sobhy, Mona El Said Abd El Hameed Essa
European Journal of General Dentistry.2023; 12(03): 169. CrossRef
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Jennifer Hoppe, Thomas Lehmann, Christoph-Ludwig Hennig, Ulrike Schulze-Späte, Collin Jacobs
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Effect of 16% Carbamide Peroxide and Activated-Charcoal-Based Whitening Toothpaste on Enamel Surface Roughness in Bovine Teeth: An In Vitro Study
Jorge Zamudio-Santiago, Marysela Ladera-Castañeda, Flor Santander-Rengifo, Carlos López-Gurreonero, Alberto Cornejo-Pinto, Ali Echavarría-Gálvez, Luis Cervantes-Ganoza, César Cayo-Rojas
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Seher KAYA, Ozden OZEL BEKTAS
Cumhuriyet Dental Journal.2022; 25(Supplement): 78. CrossRef
Effect of Polishing on the Surface Microhardness of Nanohybrid Composite Resins Subjected to 35% Hydrogen Peroxide
Giovanna Gisella Ramírez-Vargas, Julia Elbia Medina y Mendoza, Ana Sixtina Aliaga-Mariñas, Marysela Irene Ladera-Castañeda, Luis Adolfo Cervantes-Ganoza, César Félix Cayo-Rojas
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Intrapulpal Concentration of Hydrogen Peroxide of Teeth Restored With Bulk Fill and Conventional Bioactive Composites
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An Environmental Scanning Electron Microscopy Evaluation on Comparison of Three Different Bleaching Agents using the Laser Activated in-Office Bleaching at Different Wavelengths
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Effects of Artificial Staining and Bleaching Protocols on the Surface Roughness, Color, and Whiteness Changes of an Aged Nanofilled Composite
Geyse Maria dos Santos Muniz Mota, Matheus Kury, Cecília Pereira da Silva Braga Tenório, Flávia Lucisano Botelho do Amaral, Cecília Pedroso Turssi, Vanessa Cavalli
Frontiers in Dental Medicine.2020;[Epub] CrossRef

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Case Report

Functional and aesthetic rehabilitation in posterior tooth with bulk-fill resin composite and occlusal matrix: Luciana Fávaro Francisconi-dos-Rios, Johnny Alexandre Oliveira Tavares, Luanderson Oliveira, Jefferson Chaves Moreira, Flavia Pardo Salata Nahsan; Restor Dent Endod 2020;45(1):e9. Published online January 3, 2020; DOI: https://doi.org/10.5395/rde.2020.45.e9

Abstract PDF PubReader ePub

The restorative procedure in posterior teeth involves clinical steps related to professional skill, especially when using the incremental technique, which may fail in the long term. A recent alternative is bulk-fill resins, which can reduce polymerization shrinkage, decreasing clinical problems such as marginal leakage, secondary caries, and fracture. This scientific study aims to report a clinical case using bulk-fill resin with an occlusal matrix. As determined in the treatment plan, an acrylic resin matrix was produced to establish an improved oral and aesthetic rehabilitation of the right mandibular first molar, which presented a carious lesion with dentin involvement. The occlusal matrix is a simple technique that maintains the original dental anatomy, showing satisfactory results regarding function and aesthetic rehabilitation.

Citations

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Mastery of Aesthetic and Functional Restoration of Maxillary Molars Using the Technique of Direct Restoration (Clinical Case)
Yu. Kolenko
SUCHASNA STOMATOLOHIYA.2025; (2): 67. CrossRef
Color stability of bulk‐fill compared to conventional resin‐based composites: A scoping review
Gaetano Paolone, Mauro Mandurino, Nicola Scotti, Giuseppe Cantatore, Markus B. Blatz
Journal of Esthetic and Restorative Dentistry.2023; 35(4): 657. CrossRef
Evaluation of Abfraction Lesions Restored with Three Dental Materials: A Comparative Study
Bogdan Constantin Costăchel, Anamaria Bechir, Alexandru Burcea, Laurența Lelia Mihai, Tudor Ionescu, Olivia Andreea Marcu, Edwin Sever Bechir
Clinics and Practice.2023; 13(5): 1043. CrossRef
Aesthetic restoration of posterior teeth using different occlusal matrix techniques
Elsa Reis Carneiro, Anabela Paula, José Saraiva, Ana Coelho, Inês Amaro, Carlos Miguel Marto, Manuel Marques Ferreira, Eunice Carrilho
British Dental Journal.2021; 231(2): 88. CrossRef

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Research Articles

The effect of individualization of fiberglass posts using bulk-fill resin-based composites on cementation: an in vitro study: Rodrigo Barros Esteves Lins, Jairo Matozinho Cordeiro, Carolina Perez Rangel, Thiago Bessa Marconato Antunes, Luís Roberto Marcondes Martins; Restor Dent Endod 2019;44(4):e37. Published online October 18, 2019; DOI: https://doi.org/10.5395/rde.2019.44.e37

Abstract PDF PubReader ePub

Objectives

This study evaluated the bond strength of various fiberglass post cementation techniques using different resin-based composites.

Materials and Methods

The roots from a total of 100 bovine incisors were randomly assigned to 5 treatment groups: G1, post + Scotchbond Multi-Purpose (SBMP) + RelyX ARC luting agent; G2, relined post (Filtek Z250) + SBMP + RelyX ARC; G3, individualized post (Filtek Z250) + SBMP; G4, individualized post (Filtek Bulk-Fill) + SBMP; G5, individualized post (Filtek Bulk-Fill Flow) + SBMP. The samples were subjected to the push-out (n = 10) and pull-out (n = 10) bond strength tests. Data from the push-out bond strength test were analyzed using 2-way analysis of variance (ANOVA) with the Bonferroni post hoc test, and data from the pull-out bond strength test were analyzed using 1-way ANOVA.

Results

The data for push-out bond strength presented higher values for G2 and G5, mainly in the cervical and middle thirds, and the data from the apical third showed a lower mean push-out bond strength in all groups. No significant difference was noted for pull-out bond strength among all groups. The most frequent failure modes observed were adhesive failure between dentine and resin and mixed failure.

Conclusions

Fiberglass post cementation using restorative and flowable bulk-fill composites with the individualization technique may be a promising alternative to existing methods of post cementation.

Citations

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EVALUATION OF PUSH-OUT BOND STRENGTH OF GLASS FIBER POSTS USING DIFFERENT LUTING CEMENTS
Jannah Mohammed, Maha Agha
BULLETIN OF STOMATOLOGY AND MAXILLOFACIAL SURGERY.2025; : 274. CrossRef
Effects of a relined fiberglass post with conventional and self-adhesive resin cement
Wilton Lima dos Santos Junior, Marina Rodrigues Santi, Rodrigo Barros Esteves Lins, Luís Roberto Marcondes Martins
Restorative Dentistry & Endodontics.2024;[Epub] CrossRef
Fracture resistance of weakened roots restored with relined or milled CAD-CAM glass fiber posts
Belizane das Graças Oliveira MAIA, Thais da Silva Alves SANTOS, Cláudio Antonio Talge CARVALHO, Francielle Silvestre VERNER, Rafael Binato JUNQUEIRA
Dental Materials Journal.2023; 42(1): 92. CrossRef
Evaluation of pretreatments on intra‐radicular dentin bond strength of self‐adhesive resin cements
Marina Rodrigues Santi, Rodrigo Barros Esteves Lins, Beatriz Ometto Sahadi, Luís Roberto Marcondes Martins, Jorge Rodrigo Soto‐Montero
Journal of Esthetic and Restorative Dentistry.2022; 34(7): 1051. CrossRef
Comparison of the Mechanical Properties and Push-out Bond Strength of Self-adhesive and Conventional Resin Cements on Fiber Post Cementation
MR Santi, RBE Lins, BO Sahadi, JR Soto-Montero, LRM Martins
Operative Dentistry.2022; 47(3): 346. CrossRef
Glass fiber posts
Renata Pereira, Rodrigo Barros Esteves Lins, Victória Castelan Rodrigues, Débora Alves Nunes Leite Lima, Luís Roberto Marcondes Martins, Flávio Henrique Baggio Aguiar
Brazilian Journal of Oral Sciences.2020; 19: e207508. CrossRef

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Finishing and polishing effects of multiblade burs on the surface texture of 5 resin composites: microhardness and roughness testing: Elodie Ehrmann, Etienne Medioni, Nathalie Brulat-Bouchard; Restor Dent Endod 2019;44(1):e1. Published online November 26, 2018; DOI: https://doi.org/10.5395/rde.2019.44.e1

Abstract PDF PubReader ePub

Objectives

The aim of this in vitro study was to test the effect of 2 finishing–polishing sequences (QB, combining a 12/15-fluted finishing bur and an EVO-Light polisher; QWB, adding a 30-fluted polishing bur after the 12/15-fluted finishing bur used in the QB sequence) on 5 nanotech-based resin composites (Filtek Z500, Ceram X Mono, Ceram X Duo, Tetric Evoceram, and Tetric Evoceram Bulk Fill) by comparing their final surface roughness and hardness values to those of a Mylar strip control group (MS).

Materials and Methods

Twelve specimens of each nanocomposite were prepared in Teflon moulds. The surface of each resin composite was finished with QB (5 samples), QWB (5 samples), or MS (2 samples), and then evaluated (60 samples). Roughness was analysed with an optical profilometer, microhardness was tested with a Vickers indenter, and the surfaces were examined by optical and scanning electron microscopy. Data were analysed using the Kruskal-Wallis test (p < 0.05) followed by the Dunn test.

Results

For the hardness and roughness of nanocomposite resin, the QWB sequence was significantly more effective than QB (p < 0.05). The Filtek Z500 showed significantly harder surfaces regardless of the finishing–polishing sequence (p < 0.05).

Conclusions

QWB yielded the best values of surface roughness and hardness. The hardness and roughness of the 5 nanocomposites presented less significant differences when QWB was used.

Citations

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Effect of modeling liquid application on color stability and surface roughness of single-shade composites
Melek Güven Bekdaş, Ihsan Hubbezoglu
BMC Oral Health.2025;[Epub] CrossRef
Effects of different charcoal-containing whitening toothpastes on color and surface roughness of a supra-nanofilled composite resin
Meltem Nermin Polan, Sevil Gurgan
BMC Oral Health.2025;[Epub] CrossRef
Impact of different polishing techniques on surface roughness, gloss, and microhardness of zirconium oxide reinforced flowable bulk-fill resin composite: an in vitro study
Amr Elsayed Elnahas, Mohamed Elshirbeny Elawsya, Abeer ElSayed ElEmbaby
BMC Oral Health.2025;[Epub] CrossRef
Tek Renkli Monokromatik Kompozit Rezinlerle İlgili Bir Durum Değerlendirmesi
Kubra Nur Yeşilova, Sebnem Turkun
Selcuk Dental Journal.2025; 12(2): 331. CrossRef
Effect of different finishing and polishing systems on surface properties of universal single shade resin-based composites
Ghada Alharbi, Hend NA Al Nahedh, Loulwa M. Al-Saud, Nourah Shono, Ahmed Maawadh
BMC Oral Health.2024;[Epub] CrossRef
A comparative study of polishing systems on optical properties and surface roughness of additively manufactured and conventional resin based composites
Ayse Tugba Erturk-Avunduk, Sevim Atılan-Yavuz, Hande Filiz, Esra Cengiz-Yanardag
Scientific Reports.2024;[Epub] CrossRef
Effect of Instrument Lubricant on Mechanical Properties of Restorative Composite
G Pippin, D Tantbirojn, M Wolfgang, JS Nordin, A Versluis
Operative Dentistry.2024; 49(4): 475. CrossRef
An In Vitro Study regarding the Wear of Composite Materials Following the Use of Dental Bleaching Protocols
Alexandru Dan Popescu, Mihaela Jana Ţuculină, Lelia Mihaela Gheorghiță, Andrei Osman, Claudiu Nicolicescu, Smaranda Adelina Bugălă, Mihaela Ionescu, Jaqueline Abdul-Razzak, Oana Andreea Diaconu, Bogdan Dimitriu
Journal of Functional Biomaterials.2023; 14(10): 532. CrossRef
Akıllı Kromatik Teknolojili Kompozit Rezinlerin Farklı pH Değerlerindeki Sıvılarda Bekletilmesi Sonrası Oluşan Yüzey Pürüzlülüğü ve Renk Değişimlerinin Değerlendirilmesi
Fatih ÖZNURHAN, Aylin ÖZEL
Farabi Tıp Dergisi.2023; 2(4): 17. CrossRef
Enamel surface roughness evaluation after debonding and residual resin removal using four different burs
Rapeti Madhu Vanya, Anil Chirla, Uday Kumar Digumarthi, Tarakesh Karri, Bommareddy Radhika, Sanapala Manojna
Journal of Contemporary Orthodontics.2023; 7(3): 173. CrossRef
Finishing and Polishing of Composite Restoration: Assessment of Knowledge, Attitude and Practice Among Various Dental Professionals in India
Sankar Vishwanath, Sadasiva Kadandale, Senthil kumar Kumarappan, Anupama Ramachandran, Manu Unnikrishnan, Honap manjiri Nagesh
Cureus.2022;[Epub] CrossRef
Evaluation of different composite resin finishing and polishing protocols by confocal laser scan microscopy
Kayo Matheus Rodrigues de Souza, Roberto Victor de Melo Silva, Marlon Ferreira Dias, Paulo Cardoso Lins-Filho, Claudio Heliomar Vicente da Silva, Renata Pedrosa Guimarães
Brazilian Journal of Oral Sciences.2022; 21: e225334. CrossRef
Laboratory methods to simulate the mechanical degradation of resin composite restorations
Veronica P. Lima, Jaqueline B. Machado, Yu Zhang, Bas A.C. Loomans, Rafael R. Moraes
Dental Materials.2022; 38(1): 214. CrossRef
FARKLI POLİSAJ SİSTEMLERİNİN POSTERİOR BÖLGEDE KULLANILAN KOMPOZİT REZİNLERİN YÜZEY PÜRÜZLÜLÜĞÜ ÜZERİNE ETKİSİ
Meltem Nermin DURSUN, Cansu ATALAY
Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi.2022; : 1. CrossRef
The Effect of Additional Finishing and Polishing Sequences on Hardness and Roughness of Two Different Dental Composites: An In Vitro Study
Kıvanç Dülger
Journal of Advanced Oral Research.2022; 13(2): 216. CrossRef
Effect of immediate and delayed finishing and polishing procedure on Streptococcal mutans adhesion and micro-hardness of composite resin surface: An in-vitro study
Tushar Kanti Majumdar, Moumita Khatua, Paromita Mazumdar, Sayantan Mukherjee
International Dental Journal of Student's Research.2022; 10(1): 5. CrossRef
Comparison of Polishing Systems on the Surface Roughness of Resin Based Composites Containing Different Monomers
Marina Gullo Augusto, Guilherme Schmitt de Andrade, Ingrid Fernandes Mathias-Santamaria, Amanda Maria de Oliveira Dal Piva, João Paulo Mendes Tribst
Journal of Composites Science.2022; 6(5): 146. CrossRef
THE EFFECT OF PH-CYCLING AND TOOTHBRUSHING SIMULATIONS ON SURFACE ROUGHNESS OF BULK-FILL COMPOSITES
Tuğba MİSİLLİ, Nihan GONULOL, Özge Gizem CABADAĞ, Lena ALMASIFAR, Derya DİNÇ
Clinical and Experimental Health Sciences.2021; 11(3): 487. CrossRef
A three-year randomized clinical trial evaluating direct posterior composite restorations placed with three self-etch adhesives
Joseph Sabbagh, Layal El Masri, Jean Claude Fahd, Paul Nahas
Biomaterial Investigations in Dentistry.2021; 8(1): 92. CrossRef
Press-On Force Effect on the Efficiency of Composite Restorations Final Polishing—Preliminary In Vitro Study
Anna Lehmann, Kacper Nijakowski, Natalia Potempa, Paweł Sieradzki, Mateusz Król, Olaf Czyż, Agnieszka Radziszewska, Anna Surdacka
Coatings.2021; 11(6): 705. CrossRef
Surface evaluations of a nanocomposite after different finishing and polishing systems for anterior and posterior restorations
Riccardo Monterubbianesi, Vincenzo Tosco, Giulia Orilisi, Simone Grandini, Giovanna Orsini, Angelo Putignano
Microscopy Research and Technique.2021; 84(12): 2922. CrossRef
Wear, roughness and microhardness analyses of single increment restorative materials submitted to different challenges in vitro
L. C. Oliveira, P. H. dos Santos, F. S. S. Ramos, M. D. Moda, A. L. F. Briso, T. C. Fagundes
European Archives of Paediatric Dentistry.2021; 22(2): 247. CrossRef
Neurotic personality trait as a predictor in the prognosis of composite restorations: A 24-month clinical follow up study
Sulthan Ibrahim Raja Khan, Dinesh Rao, Anupama Ramachandran, Bhaskaran Veni Ashok, Jagan Kumar Baskaradoss
Scientific Reports.2021;[Epub] CrossRef
The Effect of Finishing and Polishing Sequences on The Surface Roughness of Three Different Nanocomposites and Composite/Enamel and Composite/Cementum Interfaces
Ksenia Babina, Maria Polyakova, Inna Sokhova, Vladlena Doroshina, Marianna Arakelyan, Nina Novozhilova
Nanomaterials.2020; 10(7): 1339. CrossRef
Surface Geometry of Four Conventional Nanohybrid Resin‐Based Composites and Four Regular Viscosity Bulk Fill Resin‐Based Composites after Two‐Step Polishing Procedure
Mateusz Granat, Janusz Cieloszyk, Urszula Kowalska, Jadwiga Buczkowska-Radlińska, Ryta Łagocka, Ali Nokhodchi
BioMed Research International.2020;[Epub] CrossRef

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Microtensile bond strength of CAD/CAM-fabricated polymer-ceramics to different adhesive resin cements: Leyla Sadighpour, Farideh Geramipanah, Zahra Ghasri, Mehrnoosh Neshatian; Restor Dent Endod 2018;43(4):e40. Published online September 3, 2018; DOI: https://doi.org/10.5395/rde.2018.43.e40

Abstract PDF PubReader ePub

Objectives

This study evaluated the microtensile bond strength (µTBS) of polymer-ceramic and indirect composite resin with 3 classes of resin cements.

Materials and Methods

Two computer-aided design/computer-aided manufacturing (CAD/CAM)-fabricated polymer-ceramics (Enamic [ENA; Vita] and Lava Ultimate [LAV; 3M ESPE]) and a laboratory indirect composite resin (Gradia [GRA; GC Corp.]) were equally divided into 6 groups (n = 18) with 3 classes of resin cements: Variolink N (VAR; Vivadent), RelyX U200 (RXU; 3M ESPE), and Panavia F2 (PAN; Kuraray). The μTBS values were compared between groups by 2-way analysis of variance and the post hoc Tamhane test (α = 0.05).

Results

Restorative materials and resin cements significantly influenced µTBS (p < 0.05). In the GRA group, the highest μTBS was found with RXU (27.40 ± 5.39 N) and the lowest with VAR (13.54 ± 6.04 N) (p < 0.05). Similar trends were observed in the ENA group. In the LAV group, the highest μTBS was observed with VAR (27.45 ± 5.84 N) and the lowest with PAN (10.67 ± 4.37 N) (p < 0.05). PAN had comparable results to those of ENA and GRA, whereas the μTBS values were significantly lower with LAV (p = 0.001). The highest bond strength of RXU was found with GRA (27.40 ± 5.39 N, p = 0.001). PAN showed the lowest µTBS with LAV (10.67 ± 4.37 N; p < 0.001).

Conclusions

When applied according to the manufacturers' recommendations, the µTBS of polymer-ceramic CAD/CAM materials and indirect composites is influenced by the luting cements.

Citations

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Enhancing severely compromised premolar strength: role of cusp reduction design in CAD/CAM composite restorations
Mohamed F. Haridy, Ahmed Refaat Mohamed, Shehabeldin Saber, Edgar Schafer, Samar Elsayed Swelam, Youssef M. Haridy, Hend S. Ahmed
Odontology.2025;[Epub] CrossRef
Effect of hydrofluoric acid and self-etch ceramic primers on the flexural strength and fatigue resistance of glass ceramics: A systematic review and meta-analysis of in vitro studies
Paulo Matias Moreira, Gabriela Luiza Moreira Carvalho, Rodrigo de Castro Albuquerque, Carolina Bosso André
Japanese Dental Science Review.2024; 60: 198. CrossRef
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Rita Fidalgo-Pereira, Susana O. Catarino, Óscar Carvalho, Nélio Veiga, Orlanda Torres, Annabel Braem, Júlio C.M. Souza
Journal of the Mechanical Behavior of Biomedical Materials.2024; 151: 106353. CrossRef
Effect of thermocycling on the mechanical properties of permanent composite-based CAD-CAM restorative materials produced by additive and subtractive manufacturing techniques
Tuğba Temizci, Hatice Nalan Bozoğulları
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Effect of different surface treatments on resin-matrix CAD/CAM ceramics bonding to dentin: in vitro study
Hanan Fathy, Hamdi H. Hamama, Noha El-Wassefy, Salah H. Mahmoud
BMC Oral Health.2022;[Epub] CrossRef
Digital image analysis of fluorescence of ceramic veneers with different ceramic materials and resin cements
Jiao ZHANG, Qing YU
Dental Materials Journal.2022; 41(6): 868. CrossRef
Fatigue Behavior of Monolithic Zirconia-Reinforced Lithium Silicate Ceramic Restorations: Effects of Conditionings of the Intaglio Surface and the Resin Cements
F Dalla-Nora, LF Guilardi, CP Zucuni, LF Valandro, MP Rippe
Operative Dentistry.2021; 46(3): 316. CrossRef

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6 Download
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Case Report

Endocrown restorations for extensively damaged posterior teeth: clinical performance of three cases: Konstantinos Tzimas, Maria Tsiafitsa, Paris Gerasimou, Effrosyni Tsitrou; Restor Dent Endod 2018;43(4):e38. Published online August 22, 2018; DOI: https://doi.org/10.5395/rde.2018.43.e38

Abstract PDF PubReader ePub

The restoration of endodontically treated teeth (ETT) with more than one cusp missing and thin remaining walls is challenging for the general practitioner. The use of posts combined with full coverage restorations is a well-established approach, yet not following the minimal invasive principles of adhesive dentistry. Endocrowns are indirect monoblock restorations that use the pulp chamber of the ETT for retention. In this study the fabrication of 4 endocrowns and their clinical performance will be discussed. Two clinical cases include computer-aided design/computer-aided manufacturing manufactured molar endocrowns (one feldspathic ceramic and one hybrid composite-ceramic restoration) and the other two are dental laboratory manufactured resin composite premolar endocrown restorations. The modified United States Public Health Service criteria were used to assess the clinical behavior of the restorations at different follow up periods. Endocrown restorations present a satisfactory clinical alternative, either by the use of resin composite or glass ceramic and hybrid materials. Specific guidelines with minimal alterations should be followed for an endocrown restoration to be successful. Due to limited evidence regarding the long term evaluation of this restorative technique, a careful selection of cases should be applied.

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Mechanical performance of endocrown restorations in anterior teeth: A systematic review and network meta-analysis
Julia Fehrenbach, Jéssica Lopes Soares de Soares, João Carlos Silva do Nascimento Foly, Leonardo Lamberti Miotti, Eliseu Aldrighi Münchow
Dental Materials.2025; 41(1): 28. CrossRef
Fracture resistance and mode of failure of modified Polyether-ether-ketone versus lithium disilicate endocrowns
Mohamed G. A. Kharboush, Hesham I. Othman, Mohamed F. Aldamaty, Ahmed M. L. Alameldin
BMC Oral Health.2025;[Epub] CrossRef
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Research Articles

The effect of thermocycling on the degree of conversion and mechanical properties of a microhybrid dental resin composite: Mehrsima Ghavami-Lahiji, Melika Firouzmanesh, Hossein Bagheri, Tahereh S. Jafarzadeh Kashi, Fateme Razazpour, Marjan Behroozibakhsh; Restor Dent Endod 2018;43(2):e26. Published online April 26, 2018; DOI: https://doi.org/10.5395/rde.2018.43.e26

Abstract PDF PubReader ePub

Objective

The purpose of this study was to investigate the degree of conversion (DC) and mechanical properties of a microhybrid Filtek Z250 (3M ESPE) resin composite after aging.

Method

The specimens were fabricated using circular molds to investigate Vickers microhardness (Vickers hardness number [VHN]) and DC, and were prepared according to ISO 4049 for flexural strength testing. The initial DC (%) of discs was recorded using attenuated total reflectance-Fourier transforming infrared spectroscopy. The initial VHN of the specimens was measured using a microhardness tester under a load of 300 g for 15 seconds and the flexural strength test was carried out with a universal testing machine (crosshead speed, 0.5 mm/min). The specimens were then subjected to thermocycling in 5°C and 55°C water baths. Properties were assessed after 1,000–10,000 cycles of thermocycling. The surfaces were evaluated using scanning electron microscopy (SEM). Data were analyzed using 1-way analysis of variance followed by the Tukey honest significant difference post hoc test.

Results

Statistical analysis showed that DC tended to increase up to 4,000 cycles, with no significant changes. VHN and flexural strength values significantly decreased upon thermal cycling when compared to baseline (p < 0.05). However, there was no significant difference between initial and post-thermocycling VHN results at 1,000 cycles. SEM images after aging showed deteriorative changes in the resin composite surfaces.

Conclusions

The Z250 microhybrid resin composite showed reduced surface microhardness and flexural strength and increased DC after thermocycling.

Citations

Citations to this article as recorded by

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Comparison of light-transmittance in dental tissues and dental composite restorations using incremental layering build-up with varying enamel resin layer thickness: Rodrigo Rocha Maia, Dayane Oliveira, Tracy D'Antonio, Fang Qian, Frederick Skiff; Restor Dent Endod 2018;43(2):e22. Published online April 16, 2018; DOI: https://doi.org/10.5395/rde.2018.43.e22

Abstract PDF PubReader ePub

Objectives

To evaluate and compare light-transmittance in dental tissues and dental composite restorations using the incremental double-layer technique with varying layer thickness.

Materials and Methods

B1-colored natural teeth slabs were compared to dental restoration build-ups with A2D and B1E-colored nanofilled, supra-nanofilled, microfilled, and microhybrid composites. The enamel layer varied from 0.3, 0.5, or 1.2 mm thick, and the dentin layer was varied to provide a standardized 3.7 mm overall sample thickness (n = 10). All increments were light-cured to 16 J/cm² with a multi-wave LED (Valo, Ultradent). Using a spectrophotometer, the samples were irradiated by an RGB laser beam. A voltmeter recorded the light output signal to calculate the light-transmittance through the specimens. The data were analyzed using 1-way analysis of variance followed by the post hoc Tukey's test (p = 0.05).

Results

Mean light-transmittance observed at thicker final layers of enamel were significantly lower than those observed at thinner final layers. Within 1.2 mm final enamel resin layer (FERL) thickness, all composites were similar to the dental tissues, with exception of the nanofilled composite. However, within 0.5 mm FERL thickness, only the supra-nanofilled composite showed no difference from the dental tissues. Within 0.3 mm FERL thickness, none of the composites were similar to the dental tissues.

Conclusions

The supra-nanofilled composite had the most similar light-transmittance pattern when compared to the natural teeth. However, for other composites, thicker FERL have a greater chance to match the light-transmittance of natural dental tissues.

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Rafael Melara, Luciana Mendonça, Fábio Herrmann Coelho-de-Souza, Juliana Nunes Rolla, Luciano de Souza Gonçalves
Restorative Dentistry & Endodontics.2021;[Epub] CrossRef
In vitro wear of dual‐cured bulkfill composites and flowable bulkfill composites
Jean‐François Roulet, Snigdha Gummadi, Hind S. Hussein, Nader Abdulhameed, Chiayi Shen
Journal of Esthetic and Restorative Dentistry.2020; 32(5): 512. CrossRef

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Case Report

Management of dental erosion induced by gastro-esophageal reflux disorder with direct composite veneering aided by a flexible splint matrix: Sherin Jose Chockattu, Byathnal Suryakant Deepak, Anubhav Sood, Nandini T. Niranjan, Arun Jayasheel, Mallikarjun K. Goud; Restor Dent Endod 2018;43(1):e13. Published online February 6, 2018; DOI: https://doi.org/10.5395/rde.2018.43.e13

Abstract PDF PubReader ePub

Dental erosion is frequently overlooked in clinical practice. The management of erosion-induced damage to the dentition is often delayed, such that extensive occlusal rehabilitation is required. These cases can be diagnosed by a careful clinical examination and a thorough review of the patient's medical history and/or lifestyle habits. This case report presents the diagnosis, categorization, and management of a case of gastro-esophageal reflux disease-induced palatal erosion of the maxillary teeth. The early management of such cases is of utmost importance to delay or prevent the progression of damage both to the dentition and to occlusal stability. Non-invasive adhesively bonded restorations aid in achieving this goal.

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Effect of Acidic Media on Surface Topography and Color Stability of Two Different Glass Ceramics
Fatma Makkeyah, Nesrine A. Elsahn, Mahmoud M. Bakr, Mahmoud Al Ankily
European Journal of Dentistry.2025; 19(01): 173. CrossRef
Mechanical Performance and Surface Roughness of Lithium Disilicate and Zirconia-Reinforced Lithium Silicate Ceramics Before and After Exposure to Acidic Challenge
Ahmed Elsherbini, Salma M. Fathy, Walid Al-Zordk, Mutlu Özcan, Amal A. Sakrana
Dentistry Journal.2025; 13(3): 117. CrossRef
Biomechanical reinforcement by CAD-CAM materials affects stress distributions of posterior composite bridges: 3D finite element analysis.
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Surface Properties and Wear Resistance of Injectable and Computer-Aided Design/Computer Aided Manufacturing–Milled Resin Composite Thin Occlusal Veneers
Nesrine A. Elsahn, Hatem M. El-Damanhoury, Zainab Shirazi, Abdul Rahman M. Saleh
European Journal of Dentistry.2023; 17(03): 663. CrossRef
Effect of acidic media on flexural strength and fatigue of CAD-CAM dental materials
Alaaeldin Elraggal, Rania. R Afifi, Rasha A. Alamoush, Islam Abdel Raheem, David C. Watts
Dental Materials.2023; 39(1): 57. CrossRef
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RQ Ramos, NF Coelho, GC Lopes
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Milena F. Alencar, Mirella T. Pereira, Maria D. R. De‐Moraes, Sérgio L. Santiago, Vanara F. Passos
Microscopy Research and Technique.2020; 83(2): 202. CrossRef

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Research Article

Effect of water storage on flexural strength of silorane and methacrylate-based composite resins: Narges Panahandeh, Hassan Torabzadeh, Hani Naderi, Seyedeh Mahsa Sheikh-Al-Eslamian; Restor Dent Endod 2017;42(4):309-315. Published online November 6, 2017; DOI: https://doi.org/10.5395/rde.2017.42.4.309

Abstract PDF PubReader ePub

Objectives

This study assessed the effect of water storage on the flexural strength (FS) of low shrinkage composites.

Materials and Methods

A total of 165 bar-shaped specimens (2 × 2 × 25 mm) were fabricated of 2 low shrinkage composites (Filtek P90 [3M ESPE], GC Kalore [GC International]) and a conventional methacrylate-based composite (Filtek Z250 [3M ESPE]). The specimens were subjected to 3-point bending test at 6 time intervals, namely: immediately after curing, at 24 hours, 1 week, 1 month, 6 months, and 1 year following storage in wet and dry conditions. The FS of the specimens were measured by applying compressive load at a crosshead speed of 1.0 mm/min. Data was analyzed using 3-way analysis of variance (ANOVA) and Tukey's test.

Results

Three-way ANOVA revealed significant interactions between time, type of composite, and storage condition (p = 0.001). Tukey's multiple comparison test revealed significant reductions in FS of all composites after 6 months and 1 year of storage in distilled water compared to dry condition.

Conclusions

Filtek P90 showed the highest and GC Kalore showed the lowest FS after 1 year storage in distilled water. The immediate high strength of Filtek Z250 significantly decreased at 1 year and its final value was lower than that of Filtek P90.

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Renata Pereira, Flávio H. B. Aguiar, Rodrigo B. E. Lins, Maria C. A. J. Mainairdi, Bruna G. Silva, Marcela A. Ferretti, Klaus Rischka
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Yuke Shou, Lanzhi Deng, Xiaoyu Huang, Xinyu Peng, Xinxuan Zhou, Zheng Wang, Yannan Huang, Bina Yang, Haohao Wang, Min Zhang, Lei Cheng
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Changes in color and contrast ratio of resin composites after curing and storage in water
Marlus da Silva Pedrosa, Fernando Neves Nogueira, Vitor de Oliveira Baldo, Igor Studart Medeiros
The Saudi Dental Journal.2021; 33(8): 1160. CrossRef
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Agata Szczesio-Wlodarczyk, Jerzy Sokolowski, Joanna Kleczewska, Kinga Bociong
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Juliana Jendiroba Faraoni, Isabela Barbosa Quero, Lívia Semedo Schiavuzzo, Regina Guenka Palma-Dibb
Brazilian Journal of Oral Sciences.2019; 18: e191601. CrossRef
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Weber Adad Ricci, Priscila Alfano, Saulo Pamato, Carlos Alberto dos Santos Cruz, Jefferson Ricardo Pereira
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Effects of water and microbial-based aging on the performance of three dental restorative materials
Xinxuan Zhou, Suping Wang, Xian Peng, Yao Hu, Biao Ren, Mingyun Li, Liying Hao, Mingye Feng, Lei Cheng, Xuedong Zhou
Journal of the Mechanical Behavior of Biomedical Materials.2018; 80: 42. CrossRef

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Review Article

Survival rates against fracture of endodontically treated posterior teeth restored with full-coverage crowns or resin composite restorations: a systematic review: Warattama Suksaphar, Danuchit Banomyong, Titalee Jirathanyanatt, Yaowaluk Ngoenwiwatkul; Restor Dent Endod 2017;42(3):157-167. Published online July 31, 2017; DOI: https://doi.org/10.5395/rde.2017.42.3.157

Abstract PDF PubReader ePub

This systematic review aims to summarize the current clinical studies that investigated survival rates against fracture of endodontically treated posterior teeth restored with crowns or resin composite restorations. Literature search were performed using keywords. Publications from 1980 to 2016 were searched in PubMed, ScienceDirect, Web of Science, MEDLINE, and SCOPUS. Included studies were selected based on inclusion and exclusion criteria. Three clinical studies were included: 1 randomized controlled trial and 1 prospective and 1 retrospective cohort studies. Pooled survival rates ranged from 94%–100% and 91.9%–100% for crowns and resin composite, respectively. The majority of teeth had no more than 3 surface loss of tooth structure. The studies included were heterogeneous, and were not appropriate for further meta-analysis. Current evidence suggested that the survival rates against the fracture of endodontically treated posterior teeth restored with crowns or resin composites were not significantly different in the teeth with minimum to moderate loss of tooth structure.

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Ceyda Sari, Oya Bala, Sinem Akgul, Cemile Kedici Alp
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Motasum Abu-Awwad, Ruba Halasa, Laila Haikal, Ahmad El-Ma'aita, Mohammad Hammad, Haralampos Petridis
Journal of Dentistry.2025; 156: 105699. CrossRef
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Jacqueline Salomão Jardim, Vinicius de Menezes Félix Ferreira, Hiskell Francine Fernandes e Oliveira, Daniele Sorgatto Faé, Cleidiel Aparecido Araujo Lemos
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Mona Kimmel, Clovis Mariano Faggion
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Brenda Leyton, Jullyana Dezanetti, Rodrigo Rached, Sérgio Ignácio, Evelise Souza
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João Paulo M. Tribst, Amanda Maria de O. Dal Piva, Joris Muris, Cornelis J. Kleverlaan, Albert J. Feilzer
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Enas Khamakhim, Farida Alsayeh
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Sumaya Aghila
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Ahmed Abdelsattar Metwaly, Amira Farid Elzoghby, Rawda Hesham Abd ElAziz
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Mai M Alhamdan, Rodina F Aljamaan, Munira M Abuthnain, Shahd A Alsumikhi, Ghada S Alqahtani, Reem A Alkharaiyef
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Lara Dotto, Luiza Paloma S. Girotto, Yara Teresinha Correa Silva Sousa, Gabriel Kalil Rocha Pereira, Ataís Bacchi, Rafael Sarkis-Onofre
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Norazlina Mohammad, Faizah Abdul Fatah, Azlan Jaafar, Siti Hajar Omar, Aimi Amalina Ahmad, Abdul Azim Asy Abdul Aziz, Aws Hashim Ali Al-Kadhim
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Marek Šupler, Andrej Jenča, Michal Straka, Juraj Deglovič, Janka Jenčová
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Esraa Attar, Shatha Alshali, Tariq Abuhaimed
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Hemalatha Hiremath, Devansh Verma, Sheetal Khandelwal, AishwaryaSingh Solanki, Sonam Patidar
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Emine B. Buyukerkmen, Durmuş A. Bozkurt, Arslan Terlemez
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Raghad A. Al-Dabbagh
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René Daher, Stefano Ardu, Enrico Di Bella, Giovanni T. Rocca, Albert J. Feilzer, Ivo Krejci
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Research Articles

In vitro study of Streptococcus mutans adhesion on composite resin coated with three surface sealants: Da Hye Kim, Tae-Yub Kwon; Restor Dent Endod 2017;42(1):39-47. Published online December 30, 2016; DOI: https://doi.org/10.5395/rde.2017.42.1.39

Abstract PDF PubReader ePub

Objectives

Although the coating of surface sealants to dental composite resin may potentially reduce bacterial adhesion, there seems to be little information regarding this issue. This preliminary in vitro study investigated the adhesion of Streptococcus mutans (S. mutans) on the dental composite resins coated with three commercial surface sealants.

Materials and Methods

Composite resin (Filtek Z250) discs (8 mm in diameter, 1 mm in thickness) were fabricated in a mold covered with a Mylar strip (control). In group PoGo, the surfaces were polished with PoGo. In groups PS, OG, and FP, the surfaces polished with PoGo were coated with the corresponding surface sealants (PermaSeal, PS; OptiGuard, OG; Fortify Plus, FP). The surfaces of the materials and S. mutans cells were characterized by various methods. S. mutans adhesion to the surfaces was quantitatively evaluated using flow cytometry (n = 9).

Results

Group OG achieved the lowest water contact angle among all groups tested (p < 0.001). The cell surface of S. mutans tested showed hydrophobic characteristics. Group PoGo exhibited the greatest bacterial adhesion among all groups tested (p < 0.001). The sealant-coated groups showed statistically similar (groups PS and FP, p > 0.05) or significantly lower (group OG, p < 0.001) bacterial adhesion when compared with the control group.

Conclusions

The application of the surface sealants significantly reduced S. mutans adhesion to the composite resin polished with the PoGo.

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Qi Xue, Wenshun Wang, Chongyi Wang, Ximei Xiao, Yongliang Wang, Meiwen Cao, Jing Fu
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Bahni S Pathak, Alpana Talukdar, Indrani Barman, Shivansh Aggrohiya , Upasana Barman , Samar Khan, Seema Gupta
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Apoorva Goswami, Hemalatha Ramkumar, Shankar Paulindraraj, Trophimus Gnanabagyan Jayakaran, Kalpana Hari Krishnan, Aroonika Bedre
Journal of Indian Society of Pedodontics and Preventive Dentistry.2025; 43(4): 575. CrossRef
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Effect of immersion into solutions at various pH on the color stability of composite resins with different shades: Ji-Deok Moon, Eun-Mi Seon, Sung-Ae Son, Kyoung-Hwa Jung, Yong-Hoon Kwon, Jeong-Kil Park; Restor Dent Endod 2015;40(4):270-276. Published online August 28, 2015; DOI: https://doi.org/10.5395/rde.2015.40.4.270

Abstract PDF PubReader ePub

Objectives

This study examined the color changes of a resin composite with different shades upon exposure to water with different pH.

Materials and Methods

Nanohybrid resin composites (Filtek Z350XT, 3M ESPE) with four different shades (A2, A3, B1, and B2) were immersed in water with three different pH (pH 3, 6, and 9) for 14 day. The CIE L*a*b* color coordinates of the specimens were evaluated before and after immersion in the solutions. The color difference (ΔE*) and the translucency parameter (TP) were calculated using the color coordinates.

Results

ΔE* ranged from 0.33 to 1.58, and the values were affected significantly by the pH. The specimens immersed in a pH 6 solution showed the highest ΔE* values (0.87 - 1.58). The specimens with a B1 shade showed the lowest ΔE* change compared to the other shades. TP ranged from 7.01 to 9.46 depending on the pH and resin shade. The TP difference between before and after immersion in the pH solutions was less than 1.0.

Conclusions

The resulting change of color of the tested specimens did not appear to be clinically problematic because the color difference was < 1.6 in the acidic, neutral, and alkaline solutions regardless of the resin shade, i.e., the color change was imperceptible.

Citations

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Vilas Rajguru, Smita Khalikar, Sonali Mahajan, Gopika Gopan, Siddhi D Bhatawadekar, Kishor Mahale
International Journal of Prosthodontics and Restorative Dentistry.2025; 15(1): 36. CrossRef
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Arnab Mondal, Swati Singh, Seema Qamar, Barun Dasgupta, Shovan Roy
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Ahmet Hazar, Ecehan Hazar
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JEX Ong, AU Yap, A Abdul Aziz, NA Yahya
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International Dental Journal.2023; 73(4): 511. CrossRef
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Agata Szczesio-Wlodarczyk, Izabela M. Barszczewska-Rybarek, Marta W. Chrószcz-Porębska, Karolina Kopacz, Jerzy Sokolowski, Kinga Bociong
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Effect of organic acids in dental biofilm on microhardness of a silorane-based composite: Sedighe Sadat Hashemikamangar, Seyed Jalal Pourhashemi, Mohammad Talebi, Nazanin Kiomarsi, Mohammad Javad Kharazifard; Restor Dent Endod 2015;40(3):188-194. Published online June 2, 2015; DOI: https://doi.org/10.5395/rde.2015.40.3.188

Abstract PDF PubReader ePub

Objectives

This study evaluated the effect of lactic acid and acetic acid on the microhardness of a silorane-based composite compared to two methacrylate-based composite resins.

Materials and Methods

Thirty disc-shaped specimens each were fabricated of Filtek P90, Filtek Z250 and Filtek Z350XT. After measuring of Vickers microhardness, they were randomly divided into 3 subgroups (n = 10) and immersed in lactic acid, acetic acid or distilled water. Microhardness was measured after 48 hr and 7 day of immersion. Data were analyzed using repeated measures ANOVA (p < 0.05). The surfaces of two additional specimens were evaluated using a scanning electron microscope (SEM) before and after immersion.

Results

All groups showed a reduction in microhardness after 7 day of immersion (p < 0.001). At baseline and 7 day, the microhardness of Z250 was the greatest, followed by Z350 and P90 (p < 0.001). At 48 hr, the microhardness values of Z250 and Z350 were greater than P90 (p < 0.001 for both), but those of Z250 and Z350 were not significantly different (p = 0.095). Also, the effect of storage media on microhardness was not significant at baseline, but significant at 48 hr and after 7 day (p = 0.001 and p < 0.001, respectively). Lactic acid had the greatest effect.

Conclusions

The microhardness of composites decreased after 7 day of immersion. The microhardness of P90 was lower than that of other composites. Lactic acid caused a greater reduction in microhardness compared to other solutions.

Citations

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Effect of hydroelectrolytic beverages on the roughness and microhardness of bulk fill resin composites
Renata Siqueira Scatolin, Caio Castro Grigoletto, Laura Nobre Ferraz, Rafael Pino Vitti
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Sara Akbari Fard, Saeed Nemati Anaraki, Haleh Kazemi -Yazdi, Mahsa Qenaat
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Evaluating the effect of natural, industrial juices and beverage on orthodontic bonding composite (in-vitro study)
Rusal S Ahmed, Alan I Saleem
Journal of Baghdad College of Dentistry.2023; 35(3): 10. CrossRef
Stoichiometric models of sucrose and glucose fermentation by oral streptococci: Implications for free acid formation and enamel demineralization
Marzieh Mansouri, Evan P. O'Brien, Karabi Mondal, Chien-Chia Chen, James L. Drummond, Luke Hanley, Karl J. Rockne
Dental Materials.2023; 39(4): 351. CrossRef
Effect of mouthwashes on the microhardness of aesthetic composite restorative materials
Noura Abdulaziz Alessa
Anales del Sistema Sanitario de Navarra.2023;[Epub] CrossRef
Evaluation of the Effect of Natural and Industrial Orange Juices and Beverage on Surface Roughness of Orthodontic Bonding Composite
Rusal Saad Ahmed, Alan Issa Saleem
Dental Hypotheses.2022; 13(3): 107. CrossRef
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M. Heidari, A. Karimzadeh, M.R. Ayatollahi, M.Y. Yahya
International Journal of Solids and Structures.2021; 225: 111054. CrossRef
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Marco Colombo, Simone Gallo, Claudio Poggio, Vittorio Ricaldone, Carla Renata Arciola, Andrea Scribante
Materials.2020; 13(6): 1308. CrossRef
Tribological Behavior of Restorative Dental Microcomposites After Exposure to Mouth Acids
A. C. Branco, J. Brito, M. Codorniz, M. Steinhausen, F. Martins, J. Reis, P. Maurício, R. Colaço, A. P. Serro
Tribology Letters.2019;[Epub] CrossRef
Vickers Micro-Hardness of New Restorative CAD/CAM Dental Materials: Evaluation and Comparison after Exposure to Acidic Drink
Marco Colombo, Claudio Poggio, Alessandro Lasagna, Marco Chiesa, Andrea Scribante
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Serdar Akarsu, Hüseyin Özgür Özdemir
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Ximena C. Melgar, Niek J.M. Opdam, Marcos Britto Correa, Renata Franzon, Flávio Fernando Demarco, Fernando B. Araujo, Luciano Casagrande
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The effect of resin thickness on polymerization characteristics of silorane-based composite resin: Sung-Ae Son, Hyoung-Mee Roh, Bock Hur, Yong-Hoon Kwon, Jeong-Kil Park; Restor Dent Endod 2014;39(4):310-318. Published online September 5, 2014; DOI: https://doi.org/10.5395/rde.2014.39.4.310

Abstract PDF PubReader ePub

Objectives

This study examined the influence of the resin thickness on the polymerization of silorane- and methacrylate-based composites.

Materials and Methods

One silorane-based (Filtek P90, 3M ESPE) and two methacrylate-based (Filtek Z250 and Z350, 3M ESPE) composite resins were used. The number of photons were detected using a photodiode detector at the different thicknesses (thickness, 1, 2 and 3 mm) specimens. The microhardness of the top and bottom surfaces was measured (n = 15) using a Vickers hardness with 200 gf load and 15 sec dwell time conditions. The degree of conversion (DC) of the specimens was determined using Fourier transform infrared spectroscopy (FTIR). Scratched powder of each top and bottom surface of the specimen dissolved in ethanol for transmission FTIR spectroscopy. The refractive index was measured using a Abbe-type refractometer. To measure the polymerization shrinkage, a linometer was used. The results were analyzed using two-way ANOVA and Tukey's test at p < 0.05 level.

Results

The silorane-based resin composite showed the lowest filler content and light attenuation among the specimens. P90 showed the highest values in the DC and the lowest microhardness at all depth. In the polymerization shrinkage, P90 showed a significantly lower shrinkage than the rest two resin products (p < 0.05). P90 showed a significantly lower refractive index than the remaining two resin products (p < 0.05).

Conclusions

DC, microhardness, polymerization rate and refractive index linearly decreased as specimen thickness linearly increased. P90 showed much less polymerization shrinkage compared to other specimens. P90, even though achieved the highest DC, showed the lowest microhardness and refractive index.

Citations

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Josipa Vukelja Bosnić, Eva Klarić, Ivan Sever, Zrinka Tarle
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Chameleon Effect of Universal Shade Composite Polymers in Repairing CAD/CAM Lithium Disilicate
Gaetano Paolone, Giacomo Collivasone, Niccolò De Masi, Alicia Heinichen, Katia Greco, Enrico Gherlone, Giuseppe Cantatore
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The influence of inorganic fillers on the light transmission through resin-matrix composites during the light-curing procedure: an integrative review
Rita Fidalgo-Pereira, Daniela Carpio, Orlanda Torres, Oscar Carvalho, Filipe Silva, Bruno Henriques, Mutlu Özcan, Júlio C. M. Souza
Clinical Oral Investigations.2022; 26(9): 5575. CrossRef
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Saad Liaqat, Humaira Jabeen
Pakistan BioMedical Journal.2022;[Epub] CrossRef
Effect of Polymerization on the Color of Resin Composites
B Korkut, G Dokumacigil, N Murat, PY Atali, B Tarcin, GB Gocmen
Operative Dentistry.2022; 47(5): 514. CrossRef
Shrinkage Stress and Temperature Variation in Resin Composites Cured via Different Photoactivation Methods: Insights for Standardisation of the Photopolymerisation
Guilherme dos Santos Sousa, Gabriel Felipe Guimarães, Edilmar Marcelino, José Eduardo Petit Rodokas, Arilson José de Oliveira Júnior, Ivana Cesarino, Alcides Lopes Leão, Carla dos Santos Riccardi, Mohammad Arjmand, Rafael Plana Simões
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Effect of the incorporation of silica blow spun nanofibers containing silver nanoparticles (SiO2/Ag) on the mechanical, physicochemical, and biological properties of a low-viscosity bulk-fill composite resin
Soraya Salmanzadeh Ardestani, Roberta Ferreti Bonan, Mariaugusta Ferreira Mota, Rosiane Maria da Costa Farias, Romualdo Rodrigues Menezes, Paulo Rogério Ferreti Bonan, Panmella Pereira Maciel, Flávia Maria de Moraes Ramos-Perez, André Ulisses Dantas Batis
Dental Materials.2021; 37(10): 1615. CrossRef
Light-Curing Units, Photoinitiators System, and Monomers on Physico-Mechanical Properties of Experimental Composite Resins
Gustavo Furlan da Silva Prezotto, Weverteon Soares de Lima, Rafael Pino Vitti, Ariel Farias da Silva, Mário Alexandre Coelho Sinhoreti, William Cunha Brandt
Matéria (Rio de Janeiro).2020;[Epub] CrossRef
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IO Cardoso, AC Machado, DNR Teixeira, FC Basílio, A Marletta, PV Soares
Operative Dentistry.2020; 45(4): 377. CrossRef
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Dhakshinamoorthy Malarvizhi, Arumugam Karthick, NewBegin Selvakumar Gold Pearlin Mary, Alagarsamy Venkatesh
Journal of International Oral Health.2019; 11(5): 244. CrossRef
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Xinxuan Zhou, Xiaoyu Huang, Mingyun Li, Xian Peng, Suping Wang, Xuedong Zhou, Lei Cheng
Journal of Applied Polymer Science.2019;[Epub] CrossRef
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Rasoul Sahebalam, Alireza Boruziniat, Fahimeh Mohammadzadeh, Abdolrasoul Rangrazi
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O. A. Udod, V. H. Tsentilo, O. M. Adamenko
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Sara Blanco Lerech, Sebastián Frías Tarón, Arnulfo Tarón Dunoyer, José María Bustillo Arrieta, Antonio Díaz Caballero
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Compressive strength of glass ionomer and composite resin. In vitro study
Sara Blanco Lerech, Sebastián Frías Tarón, Arnulfo Tarón Dunoyer, José María Bustillo Arrieta, Antonio Díaz Caballero
Revista Odontológica Mexicana.2017; 21(2): e107. CrossRef
Influência de três modos de fotopolimerização sobre a microdureza de três resinas compostas
Andréa Cristina Schneider, Márcio José Mendonça, Roberta Bento Rodrigues, Priscilla do Monte Ribeiro Busato, Veridiana Camilotti
Polímeros.2016; 26(spe): 37. CrossRef
Vickers microhardness comparison of 4 composite resins with different types of filler.
Rene García-Contreras, Rogelio Scougall-Vilchis, Laura Acosta-Torres, Concepción Arenas-Arrocena, Rigoberto García-Garduño, Javier de la Fuente-Hernández
Journal Oral Of Research.2015; 4(5): 313. CrossRef

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Effect of 38% carbamide peroxide on the microleakage of silorane-based versus methacrylate-based composite restorations: Sedighe Sadat Hashemi Kamangar, Maryam Ghavam, Nazanin Mahinfar, Seyed Jalal Pourhashemi; Restor Dent Endod 2014;39(3):172-179. Published online May 13, 2014; DOI: https://doi.org/10.5395/rde.2014.39.3.172

Abstract PDF PubReader ePub: Objectives
This study aimed to assess the effect of 38% carbamide peroxide on the microleakage of class V cavities restored with either a silorane-based composite or two methacrylate-based composites.
Materials and Methods
A total of 96 class V cavities were prepared on the buccal surface of extracted human teeth with both enamel and dentin margins and were randomly assigned into three groups of Filtek P90 (3M-ESPE) + P90 system adhesive (3M-ESPE)(group A), Filtek Z250 (3M-ESPE) + Adper Prompt L-Pop (3M-ESPE)(group B) and Filtek Z350XT (3M-ESPE) + Adper Prompt L-Pop (group C). Half of the teeth were randomly underwent bleaching (38% carbamide peroxide, Day White, Discus Dental, applying for 15 min, twice a day for 14 day) while the remaining half (control) were not bleached. Dye penetration was measured following immersion in basic fuchsine. Data were statistically analyzed using Kruskal-Wallis and Mann-Whitney U tests at a level of 0.05.
Results
No significant differences were found between composites in the control groups in enamel (p = 0.171) or dentin (p = 0.094) margins. After bleaching, microleakage of Z250 (in enamel [p = 0.867] or dentin [p = 0.590] margins) and Z350 (in enamel [p = 0.445] or dentin [p = 0.591] margins) did not change significantly, but the microleakage of P90 significantly increased in both enamel (p = 0.042) and dentin (p = 0.002) margins.
Conclusions
No significant differences were noted between the bleached and control subgroups of two methacrylate-based composites in enamel or dentin margins. Microleakage of silorane-based composite significantly increased after bleaching.

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Antibacterial properties of composite resins incorporating silver and zinc oxide nanoparticles on Streptococcus mutans and Lactobacillus: Shahin Kasraei, Lida Sami, Sareh Hendi, Mohammad-Yousef AliKhani, Loghman Rezaei-Soufi, Zahra Khamverdi; Restor Dent Endod 2014;39(2):109-114. Published online March 21, 2014; DOI: https://doi.org/10.5395/rde.2014.39.2.109

Abstract PDF PubReader ePub

Objectives

Recurrent caries was partly ascribed to lack of antibacterial properties in composite resin. Silver and zinc nanoparticles are considered to be broad-spectrum antibacterial agents. The aim of the present study was to evaluate the antibacterial properties of composite resins containing 1% silver and zinc-oxide nanoparticles on Streptococcus mutans and Lactobacillus.

Materials and Methods

Ninety discoid tablets containing 0%, 1% nano-silver and 1% nano zinc-oxide particles were prepared from flowable composite resin (n = 30). The antibacterial properties of composite resin discs were evaluated by direct contact test. Diluted solutions of Streptococcus mutans (PTCC 1683) and Lactobacillus (PTCC 1643) were prepared. 0.01 mL of each bacterial species was separately placed on the discs. The discs were transferred to liquid culture media and were incubated at 37℃ for 8 hr. 0.01 mL of each solution was cultured on blood agar and the colonies were counted. Data was analyzed with Kruskall-Wallis and Mann-Whitney U tests.

Results

Composites containing nano zinc-oxide particles or silver nanoparticles exhibited higher antibacterial activity against Streptococcus mutans and Lactobacillus compared to the control group (p < 0.05). The effect of zinc-oxide on Streptococcus mutans was significantly higher than that of silver (p < 0.05). There were no significant differences in the antibacterial activity against Lactobacillus between composites containing silver nanoparticles and those containing zinc-oxide nanoparticles.

Conclusions

Composite resins containing silver or zinc-oxide nanoparticles exhibited antibacterial activity against Streptococcus mutans and Lactobacillus.

Citations

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Bond strength of self-adhesive resin cements to composite submitted to different surface pretreatments: Victor Hugo dos Santos, Sandro Griza, Rafael Ratto de Moraes, André Luis Faria-e-Silva; Restor Dent Endod 2014;39(1):12-16. Published online January 20, 2014; DOI: https://doi.org/10.5395/rde.2014.39.1.12

Abstract PDF PubReader ePub

Objectives

Extensively destroyed teeth are commonly restored with composite resin before cavity preparation for indirect restorations. The longevity of the restoration can be related to the proper bonding of the resin cement to the composite. This study aimed to evaluate the microshear bond strength of two self-adhesive resin cements to composite resin.

Materials and Methods

Composite discs were subject to one of six different surface pretreatments: none (control), 35% phosphoric acid etching for 30 seconds (PA), application of silane (silane), PA + silane, PA + adhesive, or PA + silane + adhesive (n = 6). A silicone mold containing a cylindrical orifice (1 mm² diameter) was placed over the composite resin. RelyX Unicem (3M ESPE) or BisCem (Bisco Inc.) self-adhesive resin cement was inserted into the orifices and light-cured. Self-adhesive cement cylinders were submitted to shear loading. Data were analyzed by two-way ANOVA and Tukey's test (p < 0.05).

Results

Independent of the cement used, the PA + Silane + Adhesive group showed higher microshear bond strength than those of the PA and PA + Silane groups. There was no difference among the other treatments. Unicem presented higher bond strength than BisCem for all experimental conditions.

Conclusions

Pretreatments of the composite resin surface might have an effect on the bond strength of self-adhesive resin cements to this substrate.

Citations

Citations to this article as recorded by

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May Aljanahi, Argwan Alhussin, Haitham Elbishari
British Dental Journal.2025; 239(1): 25. CrossRef
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Sreya Dutta, Samikhya Priyadarsani Sahu, Anushka Arora, Srikant Natarajan, Abhishek Parolia, Manuel Thomas
Cumhuriyet Dental Journal.2024; 27(2): 79. CrossRef
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César Rogério Pucci, Ana Paula Valente Pinho Mafetano, Alexandre Luiz Souto Borges, Guilherme Schmitt de Andrade, Amanda Maria de Oliveira Dal Piva, Cornelis J. Kleverlaan, João Paulo Mendes Tribst
European Journal of Dentistry.2023; 17(04): 1020. CrossRef
Microgap Formation between a Dental Resin-Matrix Computer-Aided Design/Computer-Aided Manufacturing Ceramic Restorative and Dentin after Various Surface Treatments and Artificial Aging
Alexandros Galanopoulos, Dimitrios Dionysopoulos, Constantinos Papadopoulos, Petros Mourouzis, Kosmas Tolidis
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Meltem Bektaş Kömürcüoğlu, Elçin Sağırkaya, Ayça Tulga
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Geum-Jun Han, Jae-Hoon Kim, Sung-No Chung, Bae-Hyeock Chun, Chang-Keun Kim, Byeong-Hoon Cho
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Linhu Wang, Haixing Xu, Songyang Li, Bin Shi, Rong Li, Mingfu Ye, Jing Yang
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Inhibitory effect on Streptococcus mutans and mechanical properties of the chitosan containing composite resin: Ji-Sun Kim, Dong-Hoon Shin; Restor Dent Endod 2013;38(1):36-42. Published online February 26, 2013; DOI: https://doi.org/10.5395/rde.2013.38.1.36

Abstract PDF PubReader ePub

Objectives

This study evaluated the antibacterial effect and mechanical properties of composite resins (L_CR, M_CR, H_CR) incorporating chitosan with three different molecular weights (L, Low; M, Medium; H, High).

Materials and Methods

Streptococcus (S). mutans 100 mL and each chitosan powder were inoculated in sterilized 10 mL Brain-Heart Infusion (BHI) solution, and was centrifuged for 12 hr. Absorbance of the supernatent was measured at OD₆₆₀ to estimate the antibacterial activities of chitosan. After S. mutans was inoculated in the disc shaped chitosan-containing composite resins, the disc was cleansed with BHI and diluted with serial dilution method. S. mutans was spread on Mitis-salivarius bacitracin agar. After then, colony forming unit (CFU) was measured to verify the inhibitory effect on S. mutans biofilm. To ascertain the effect on the mechanical properties of composite resin, 3-point bending and Vickers hardness tests were done after 1 and 3 wk water storage, respectively. Using 2-way analysis of variance (ANOVA) and Scheffe test, statistical analysis was done with 95% significance level.

Results

All chitosan powder showed inhibition effect against S. mutans. CFU number in chitosan-containing composite resins was smaller than that of control resin without chitosan. The chitosan containing composite resins did not show any significant difference in flexural strength and Vickers hardness in comparison with the control resin. However, the composite resin, M_CR showed a slightly decreased flexural strength and the maximum load than those of control and the other composite resins H_CR and L_CR.

Conclusions

L_CR and H_CR would be recommended as a feasible antibacterial restorative due to its antibacterial nature and mechanical properties.

Citations

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Colorimetric comparison of single layered dental composite with double layered dental composite: Young-Sang Song, Ja-Hyun Kim, Bin-Na Lee, Ji-Hyun Jang, Hoon-Sang Chang, Yun-Chan Hwang, Won-Mann Oh, In-Nam Hwang; Restor Dent Endod 2012;37(2):84-89. Published online May 18, 2012; DOI: https://doi.org/10.5395/rde.2012.37.2.84

Abstract PDF PubReader ePub

Objectives

This study analyzed the difference in color caused by different thickness in enamel layer of composite resins when applied with single and layering placement technique, and evaluated if the results agreed with the shade guide from the manufacturers to verify reliability of the color matching process of the manufacturers.

Materials and Methods

For single composite resin samples, 6 mm diameter and 4 mm thickness cylindrical samples were fabricated using Ceram-X mono (DENTSPLY DeTrey) and CIE L^*a^*b^* values were measured with spectrophotometer. Same process was done for layering composite resin samples, making 3 dentinal shade samples, 4 mm thickness, for each shade using Ceram-X duo (DENTSPLY DeTrey) and enamel shade resins were layered in 2 mm thickness and CIE L^*a^*b^* values were measured. These samples were ground to 0.2 mm thickness each time, and CIE L^*a^*b^* values were measured to 1 mm thickness of enamel shade resin.

Results

Color difference (ΔE^*) between single and layering composite resin was 1.37 minimum and 10.53 maximum when layering thicknesses were between 1 mm and 2 mm and 6 out of 10 same shade groups suggested by manufacturer showed remarkable color difference at any thickness (ΔE^* > 3.3).

Conclusion

When using Ceram-X mono and duo for composite resin restoration, following the manufacturer's instructions for choosing the shade is not appropriate, and more accurate information for Ceram-X duo is needed on the variation and expression of the shades depending on the thickness of the enamel.

Citations

Citations to this article as recorded by

Improvement of mechanical strength and water repellency of Hanji (traditional Korean paper) through acetylation in supercritical CO2
Seungmok Shin, Hwi-Sung Lee, Hee Suk Woo, Mulugeta G. Aregay, Tae Jun Yoon, Youn-Woo Lee
The Journal of Supercritical Fluids.2022; 190: 105735. CrossRef
Color Change in Tooth Induced by Various Calcium Silicate-Based Pulp-Capping Materials
Jiyoon Jeon, Namki Choi, Seonmi Kim
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Basic Research

Effects of the color components of light-cured composite resin before and after polymerization on degree of conversion and flexural strength: Ji-A Yoo, Byeong-Hoon Cho; J Korean Acad Conserv Dent 2011;36(4):324-335. Published online July 31, 2011; DOI: https://doi.org/10.5395/JKACD.2011.36.4.324

Abstract PDF PubReader ePub

Objectives

This study investigated the effects of the color components of light-cured composite resin before and after polymerization on degree of conversion (DC) and biaxial flexural strength (FS).

Materials and Methods

Four enamel shades (A1, A2, A3, A4) and two dentin shades (A2O, A3O) of Premisa (Kerr Co.) and Denfil (Vericom Co.) were evaluated on their CIE L^*, a^*, b^* color components using the spectrophotometer before curing, after curing and at 7 day. The DC of same specimens were measured with Near-infrared spectrometer (Nexus, Thermo Nicolet Co.) at 2 hr after cure and at 7 day. Finally, the FS was obtained after all the other measurements were completed at 7 day. The correlations between each color component and DC and FS were evaluated.

Results

The light-curing of composite resin resulted in color changes of Premisa in red-blue direction and Denfil in green-blue direction. The DC and FS were affected by product, time and shade (3-way ANOVA, p < 0.05) and product and shade (2-way ANOVA, p < 0.05), respectively. Premisa only showed a significant correlation between the DC and CIE a^* component - before and after polymerization (Pearson product moment correlation, p < 0.05). The FS of Premisa showed significant negative correlations with CIE a^* and CIE b^* components.

Conclusions

The DC and FS of the light-curing composite resin were affected by the color components of the material before and after polymerization.

Citations

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Evaluation of Color Stability according to Shade of Temporary Crown Resin Using Digital Spectrophotometer: In Vitro Study
Hye-min Ku, Mi-Kyoung Jun
Journal of Dental Hygiene Science.2022; 22(3): 139. CrossRef
The properties of UDMA dental composite resin with novel photosensitizers
Gum Ju Sun
Journal of Korean Acedemy of Dental Technology.2013; 35(3): 209. CrossRef

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Case Report

Treatment of a lateral incisor anatomically complicated with palatogingival groove: Moon-Sun Choi, Se-Hee Park, Kyung-Mo Cho, Jin-Woo Kim; J Korean Acad Conserv Dent 2011;36(3):238-242. Published online May 31, 2011; DOI: https://doi.org/10.5395/JKACD.2011.36.3.238

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Objectives

Palatogingival groove is a developmental anomaly that starts near the cingulum of the tooth and runs down the cementoenamel junction in apical direction, terminating at various depths along the roots. While frequently associated with periodontal pockets and bone loss, pulpal necrosis of these teeth may precipitate a combined endodontic-periodontal lesion. This case presents a case of a lateral incisor anatomically complicated with palatogingival groove.

Methods

Two patients with lesion associated with the palatogingival groove were chosen for this report. Palatogingival grooves were treated with different restoration materials with endodontic treatment.

Conclusions

Maxillary lateral incisor with a palatogingival groove may occur the periodontal disease with pulpal involvement. Elimination of groove may facilitate the periodontal re-attachment and prevent the recurrence.

Citations

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Endodontic treatment of maxillary lateral incisors with anatomical variations
Moon-Hwan Lee, Jung-Hong Ha, Myoung-Uk Jin, Young-Kyung Kim, Sung-Kyo Kim
Restorative Dentistry & Endodontics.2013; 38(4): 253. CrossRef

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Basic Researchs

Effect of surface treatments of fiber posts on bond strength to composite resin cores: Hye-Jo Keum, Hyun-Mi Yoo; J Korean Acad Conserv Dent 2010;35(3):173-179. Published online May 31, 2010; DOI: https://doi.org/10.5395/JKACD.2010.35.3.173

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The purpose of the present study was to compare the influence of post-surface treatment with silane, hydrogen peroxide, hydrofluoric acid or sandblasting and to investigate the effect of silane in combination of the other treatments on the microtensile bond strength between fiber posts and composite resins for core build-up. Thirty-two glass-fiber posts (FRC Postec Plus, Ivoclar Vivadent, Schaan, Liechtenstein) were divided into eight groups according to the different surface pretreatments performed: silane application (S); immersion in 28% hydrogen peroxide (HP); immersion in hydrogen peroxide followed by application of silane (HP-S); immersion in 4% hydrofluoric acid gel (HF); immersion in hydrofluoric acid gel followed by application of silane (HF-S); sandblasting with aluminum oxide particles (SB); sandblasting followed by application of silane (SB-S). In control group, no surface treatment was performed. The composite resin (Tetric Flow, Ivoclar Vivadent, Schaan, Liechtenstein) was applied onto the posts to produce the composite cylinder specimen. It was sectioned into sticks to measure the microtensile bond strength. The data was analyzed with one-way ANOVA and LSD test for post hoc comparison (p < 0.05). Post pretreatment with sandblasting enhanced the interfacial strength between the fiber posts and core materials. Moreover, sand-blasting followed by application of silane appears to be the most effective method that can improve the clinical performance of glass fiber posts.

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Preparation and properties of glass fiber-reinforced endodontic (root canal therapy) posts
Jae-Yong Son, Kyoung-Ja Kim, Kyoung-Hun Kim, Joo-Seok Park, Kwang-Bo Shim
Journal of the Korean Crystal Growth and Crystal Technology.2015; 25(3): 105. CrossRef
Fracture resistance of upper central incisors restored with different posts and cores
Maryam Rezaei Dastjerdi, Kamran Amirian Chaijan, Saeid Tavanafar
Restorative Dentistry & Endodontics.2015; 40(3): 229. CrossRef
Effect of surface treatment of FRC-Post on bonding strength to resin cements
Chan-Hyun Park, Se-Hee Park, Jin-Woo Kim, Kyung-Mo Cho
Journal of Korean Academy of Conservative Dentistry.2011; 36(2): 125. CrossRef

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Influence of rebonding procedures on microleakage of composite resin restorations: Mi-Ae Lee, Duck-Kyu Seo, Ho-Hyun Son, Byeong-Hoon Cho; J Korean Acad Conserv Dent 2010;35(3):164-172. Published online May 31, 2010; DOI: https://doi.org/10.5395/JKACD.2010.35.3.164

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During a composite resin restoration, an anticipating contraction gap is usually tried to seal with low-viscosity resin after successive polishing, etching, rinsing and drying steps, which as a whole is called rebonding procedure. However, the gap might already have been filled with water or debris before applying the sealing resin. We hypothesized that microleakage would decrease if the rebonding agent was applied before the polishing step, i.e., immediately after curing composite resin. On the buccal and lingual surfaces of 35 extracted human molar teeth, class V cavities were prepared withthe occlusal margin in enamel and the gingival margin in dentin. They were restored with a hybrid composite resin Z250 (3M ESPE, USA) using an adhesive AdperTM Single Bond 2 (3M ESPE). As rebonding agents, BisCover LV (Bisco, USA), ScotchBond Multi-Purpose adhesive (3M ESPE) and an experimental adhesive were applied on the restoration margins before polishing step or after successive polishing and etching steps. The infiltration depth of 2% methylene blue into the margin was measured using an optical stereomicroscope. The correlation between viscosity of rebonding agents and mciroleakage was also evaluated. There were no statistically significant differences in the microleakage within the rebonding procedures, within the rebonding agents, and within the margins. However, when the restorations were not rebonded, the microleakage at gingival margin was significantly higher than those groups rebonded with 3 agents (p < 0.05). The difference was not observed at the occlusal margin. No significant correlation was found between viscosity of rebonding agents and microleakage, except very weak correlation in case of rebonding after polishing and etching at gingival margin (r = -0.326, p = 0.041).

Citations

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Antibacterial effect of self-etching adhesive systems onStreptococcus mutans
Seung-Ryong Kim, Dong-Hoon Shin
Restorative Dentistry & Endodontics.2014; 39(1): 32. CrossRef

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The effect of Er,Cr:YSGG irradiation on microtensile bond strength of composite resin restoration: Jeong-Hye Son, Hyeon-Cheol Kim, Bock Hur, Jeong-Kil Park; J Korean Acad Conserv Dent 2010;35(2):134-142. Published online March 31, 2010; DOI: https://doi.org/10.5395/JKACD.2010.35.2.134

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The purpose of this study was to evaluate the effect of Er,Cr:YSGG laser irradiation with hypersensitivity mode on microtensile bond strength of composite resin. Twenty extracted permanent molars were randomly assigned to six groups, according to the irradiation of Er,Cr:YSGG laser, adhesive system (Optibond FL or Clearfil SE bond) and application time of etchant (15 sec or 20 sec). Then composite resin was build up on each conditioned surface. The restored teeth were stored in distilled water at room temperature for 24 h and twelve specimens for each group were prepared. All specimens were subjected to microtensile bond strength and the fracture modes were evaluated. Also, the prepared dentin surface and laser irradiated dentin surface were examined under SEM.

The results were as follows:

The microtensile bond strength of laser irradiated group was lower than that of no laser irradiated group.

Regardless of laser irradiation, the microtensile bond strength of Optibond FL was higher than that of Clearfil SE bond. And the microtensile bond strength of 20 sec etching group was higher than that of 15 sec etching group when using Optibond FL.

The SEM image of laser irradiated dentin surface showed prominent peritubular dentin, opened dentinal tubules and no smear layer.

Citations

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Enamel pretreatment with Er:YAG laser: effects on the microleakage of fissure sealant in fluorosed teeth
Mahtab Memarpour, Nasrin Kianimanesh, Bahareh Shayeghi
Restorative Dentistry & Endodontics.2014; 39(3): 180. CrossRef

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Microtensile bond strength of self-etching and self-adhesive resin cements to dentin and indirect composite resin: Jae-Gu Park, Young-Gon Cho, Il-Sin Kim; J Korean Acad Conserv Dent 2010;35(2):106-115. Published online March 31, 2010; DOI: https://doi.org/10.5395/JKACD.2010.35.2.106

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The purpose of this study was to evaluate the microtensile bond strength (µTBS), failure modes and bonding interfaces of self-etching and three self-adhesive resin cements to dentin and indirect composite resin.

Cylindrical composite blocks (Tescera, Bisco Inc.) were luted with resin cements (PA: Panavia F 2.0, Kuraray Medical Inc., RE: RelyX Unicem Clicker, 3M ESPE., MA: Maxem, Kerr Co., BI: BisCem, Bisco Inc.) on the prepared occlusal dentin surfaces of 20 extracted molars. After storage in distilled water for 24 h, 1.0 mm × 1.0 mm composite-dentin beams were prepared. µTBS was tested at a cross-head speed of 0.5 mm/min. Data were analyzed with one-way ANOVA and Tukey's HSD test. Dentin sides of all fractured specimens and interfaces of resin cements-dentin or resin cements-composite were examined at FE-SEM (Field Emission-Scanning Electron Microscope).

In conclusion, PA and RE showed higher bond strength and closer adaptation than MA and BI when indirect composite blocks were luted to dentin using a self-etching and three self-adhesive resin cements.

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Short Communication

Development of anticariogenic composite resin: Jeong-Won Park; J Korean Acad Conserv Dent 2010;35(2):65-68. Published online March 31, 2010; DOI: https://doi.org/10.5395/JKACD.2010.35.2.065

Abstract PDF PubReader ePub: Due to the improvement of the composite resin and esthetic desire of the patient, amalgam restoration has been replaced by composite resin. However, still there are many unsolved problems, for example, technique sensitivity, polymerization shrinkage stress and limited mechanical properties. These factors results in fracture of the restoration and secondary caries of the tooth. Also the use of the dental bonding system should be used for the retention of the restoration. In this paper, I want to talk about the present and the future of the remineralizing component released from dental composite resin to overcome the secondary caries and there possibility in the clinical use.

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Basic Research

The effect of the amount of interdental spacing on the stress distribution in maxillary central incisors restored with porcelain laminate veneer and composite resin: A 3D-finite element analysis: Junbae Hong, Seung-Min Tak, Seung-Ho Baek, Byeong-Hoon Cho; J Korean Acad Conserv Dent 2010;35(1):30-39. Published online January 31, 2010; DOI: https://doi.org/10.5395/JKACD.2010.35.1.030

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This study evaluated the influence of the type of restoration and the amount of interdental spacing on the stress distribution in maxillary central incisors restored by means of porcelain laminate veneers and direct composite resin restorations.

Three-dimensional finite element models were fabricated to represent different types of restorations. Four clinical situations were considered. Type I, closing diastema using composite resin. Labial border of composite resin was extended just enough to cover the interdental space; Type II, closing diastema using composite resin without reduction of labial surface. Labial border of composite resin was extended distally to cover the half of the total labial surface; Type III, closing diastema using composite resin with reduction of labial surface. Labial border of the preparation and restored composite resin was extended distally two-thirds of the total labial surface; Type IV, closing diastema using porcelain laminate veneer with a feathered-edge preparation technique. Four different interdental spaces (1.0, 2.0, 3.0, 4.0 mm) were applied for each type of restorations.

For all types of restoration, adding the width of free extension of the porcelain laminate veneer and composite resin increased the stress occurred at the bonding layer. The maximum stress values observed at the bonding layer of Type IV were higher than that of Type I, II and III. However, the increasing rate of maximum stress value of Type IV was lower than that of Type I, II and III.

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Revamping the Peg Smile: An Art of Rehabilitation of Peg Laterals with Ceramic Veneers and Composite Restorations—A Case Report
Mahendran Kavitha, Ramdhas Annapurani, Pasupathy Shakunthala, Jayavel Nandhakumar
Journal of Operative Dentistry & Endodontics.2022; 6(2): 69. CrossRef
Minimally Invasive Diastema Restoration with Prefabricated Sectional Veneers
Claudio Novelli, Andrea Scribante
Dentistry Journal.2020; 8(2): 60. CrossRef

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Original Articles

The effects of dentin bonding agent thickness on stress distribution of composite-tooth interface : Finite element method: Sang-Il Park, Yemi Kim, Byoung-Duk Roh; J Korean Acad Conserv Dent 2009;34(5):442-449. Published online September 30, 2009; DOI: https://doi.org/10.5395/JKACD.2009.34.5.442

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The aim of this study was to examine that thick dentin bonding agent application or low modulus composite restoration could reduce stresses on dentin bonding agent layer.

A mandibular first premolar with abfraction lesion was modeled by finite element method. The lesion was restored by different composite resins with variable dentin bonding agent thickness (50µm, 100µm, 150µm). 170N of occlusal loading was applied buccally or lingually. Von Mises stress on dentin bonding agent layer were measured.

When thickness of dentin bonding agent was increased von Mises stresses at dentin bonding agent were decreased in both composites. Lower elastic modulus composite restoration showed decreased von Mises stresses. On root dentin margin more stresses were generated than enamel margin.

For occlusal stress relief at dentin boning agent layer to applicate thick dentin bonding agent or to choose low elastic modulus composite is recommended.

Citations

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Influence of application methods of one-step self-etching adhesives on microtensile bond strength
Chul-Kyu Choi, Sung-Ae Son, Jin-Hee Ha, Bock Hur, Hyeon-Cheol Kim, Yong-Hun Kwon, Jeong-Kil Park
Journal of Korean Academy of Conservative Dentistry.2011; 36(3): 203. CrossRef

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Effect of an intermediate bonding resin and flowable resin on the compatibility of two-step total etching adhesives with a self-curing composite resin: Sook-Kyung Choi, Ji-Wan Yum, Hyeon-Cheol Kim, Bock Hur, Jeong-Kil Park; J Korean Acad Conserv Dent 2009;34(5):397-405. Published online September 30, 2009; DOI: https://doi.org/10.5395/JKACD.2009.34.5.397

Abstract PDF PubReader ePub: This study compared the effect of an activator, intermediate bonding resin and low-viscosity flowable resin on the microtensile bond strength of a self-curing composite resin used with two-step total etching adhesives. Twenty extracted permanent molars were used. The teeth were assigned randomly to nine groups (n=10) according to the adhesive system and application of additional methods (activator, intermediate adhesive, flowable resin). The bonding agents and additional applications of each group were applied to the dentin surfaces. Self-curing composite resin buildups were made for each tooth to form a core, 5mm in height. The restored teeth were then stored in distilled water at room temperature for 24h before sectioning. The microtensile bond strength of all specimens was examined. The data was analyzed statistically by one-way ANOVA and a Scheffe's test. The application of an intermediate bonding resin (Optibond FL adhesive) and low-viscosity flowable resin (Tetric N-flow) produced higher bond strength than that with the activator in all groups. Regardless of the method selected, Optibond solo plus produced the lowest µTBS to dentin. The failure modes of the tested dentin bonding agents were mostly adhesive failure but there were some cases showed cohesive failure in the resin.

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Fracture resistance of crown-root fractured teeth repaired with dual-cured composite resin and horizontal posts: Seok-Woo Chang, Yong-Keun Lee, Seung-Hyun Kyung, Hyun-Mi Yoo, Tae-Seok Oh, Dong-Sung Park; J Korean Acad Conserv Dent 2009;34(5):383-389. Published online September 30, 2009; DOI: https://doi.org/10.5395/JKACD.2009.34.5.383

Abstract PDF PubReader ePub: The purpose of this study was to investigate the fracture resistance of crown-root fractured teeth repaired with dual-cured composite resin and horizontal posts. 48 extracted human premolars were assigned to control group and three experimental groups. Complete crown-root fractures were experimentally induced in all control and experimental teeth. In the control group, the teeth (n=12) were bonded with resin cement and endodontically treated. Thereafter, the access cavities were sealed with dual-cured composite resin. In composite resin core - post group (n=12), the teeth were endodontically treated and access cavities were sealed with dual-cured composite resin. In addition, the fractured segments in this group were fixed using horizontal posts. In composite resin core group (n=12), the teeth were endodontically treated and the access cavities were filled with dual-cured composite resin without horizontal posts. In bonded amalgam group (n=12), the teeth were endodontically treated and the access cavities were sealed with bonded amalgam. Experimental complete crown-root fractures were induced again on repaired control and experimental teeth. The ratio of fracture resistance to original fracture resistance was analyzed with Kruskal-Wallis test. The results showed that teeth in control and composite resin core - post group showed significantly higher resistance to re-fracture than those in amalgam core group (p < 0.05). The resistance to refracture was high in the order of composite resin - post group, control group, composite resin group and bonded amalgam group. Within the scope of this study, the use of horizontal post could be beneficial in increasing the fracture resistance of previously fractured teeth.

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Microleakage of the experimental composite resin with three component photoinitiator systems: Ji-Hoon Kim, Dong-Hoon Shin; J Korean Acad Conserv Dent 2009;34(4):333-339. Published online July 31, 2009; DOI: https://doi.org/10.5395/JKACD.2009.34.4.333

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This study was done to determine if there is any difference in microleakage between experimental composite resins, in which various proportions of three component photoinitiators (Camphoroquinone, OPPI, Amine) were included.

Four kinds of experimental composite resin were made by mixing 3.2% silanated barium glass (78 wt.%, average size; 1 µm) with each monomer system including variously proportioned photoinitiator systems used for photoinitiating BisGMA/BisEMA/TEGDMA monomer blend (37.5:37.5:25 wt.%). The weight percentage of each component were as follows (in sequence Camphoroquinone, OPPI, Amine): Group A - 0.5%, 0%, 1% / Group B - 2%, 0.2%, 2% / Group C - 0.2%, 1%, 0.2% / Group D - 1%, 1%, 2%.

Each composite resin was used as a filling material for round class V cavities (diameter: 2/3 of mesiodistal width; depth: 1.5 mm) made on extracted human premolars and they were polymerized using curing light unit (XL 2500, 3M ESPE) for 40 s with an intensity of 600 mW/cm². Teeth were thermocycled five-hundred times between 50℃ and 550℃ for 30s at each temperature.

Electrical conductivity (µA) was recorded two times (just after thermocycling and after three-month storage in saline solution) by electrochemical method.

Microleakage scores of each group according to evaluation time were as follows [Group: at first record / at second record; unit (µA)]: A: 3.80 (0.69) / 13.22 (4.48), B: 3.42 (1.33) / 18.84 (5.53), C: 4.18 (2.55) / 28.08 (7.75), D: 4.12 (1.86) / 7.41 (3.41).

Just after thermocycling, there was no difference in microleakage between groups, however, group C showed the largest score after three-month storage. Although there seems to be no difference in microleakage between groups just after thermocycling, composite resin with highly concentrated initiation system or classical design (Camphoroquinone and Amine system) would be more desirable for minimizing microleakage after three-month storage.

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Comparison of polymerization shrinkage of dual-cure core build-up resin according to shade and curing mode
Yoorina Choi, Karl Lee, Hoon-Sang Chang
Oral Biology Research.2019; 43(4): 243. CrossRef
Optimal combination of 3-component photoinitiation system to increase the degree of conversion of resin monomers
Chang-Gyu Kim, Ho-Jin Moon, Dong-Hoon Shin
Journal of Korean Academy of Conservative Dentistry.2011; 36(4): 313. CrossRef

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Effect of a desensitizer on dentinal bond strength in cementation of composite resin inlay: Sae-Hee Han, Young-Gon Cho; J Korean Acad Conserv Dent 2009;34(3):223-231. Published online May 31, 2009; DOI: https://doi.org/10.5395/JKACD.2009.34.3.223

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The purpose of this study was to evaluate the effect of a desensitizer on dentinal bond strength in cementation of composite resin inlay. Fifty four molar teeth were exposed the occlusal dentin. Class I inlay cavities were prepared and randomly divided into six groups. Control group ; no agent, Group 1 ; Isodan, Group 2 ; One-step, Group 3 ; All-Bond SE, Group 4 ; Isodan + One-step, Group 5 ; Isodan + All-Bond SE.

Desensitizing agent and dentin bonding agents were applied immediately after the completion of the preparations. Impressions were then made. The composite resin inlays (Tescera, Bisco) were fabricated according to the manufacturers' guidelines. Cementation procedures followed a standard protocol by using resin cement (Bis-Cem, Bisco). Specimens were stored in distilled water at 37℃ for 24 hours.

All specimens were sectioned to obtained sticks with 1.0 × 1.0 mm² cross sectional area. The microtensile bond strength (µTBS) was tested at crosshead speed of 1 mm/min. The data was analyzed using oneway ANOVA and Tukey's test. Scanning electron microscopy analysis was made to examine the details of the bonding interface.

1. Group 1 showed significantly lower µTBS than other groups (p<0.05).

2. There was no significant difference between the µTBS of Group 3 and Group 5.

3. The µTBS of Group 4 showed significantly lower than that of Group 2 (p<0.05).

In conclusion, a desensitizer (Isodan) might have an adverse effect on the bond strength of composite resin inlay to dentin.

Citations

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Microtensile bond strength of self-etching and self-adhesive resin cements to dentin and indirect composite resin
Jae-Gu Park, Young-Gon Cho, Il-Sin Kim
Journal of Korean Academy of Conservative Dentistry.2010; 35(2): 106. CrossRef

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A survey on the use of composite resin in Class II restoration in Korea: Dong-Ho Shin, Se-Eun Park, In-Seok Yang, Juhea Chang, In-Bog Lee, Byeong-Hoon Cho, Ho-Hyun Son; J Korean Acad Conserv Dent 2009;34(2):87-94. Published online March 31, 2009; DOI: https://doi.org/10.5395/JKACD.2009.34.2.087

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The purpose of this study was to assess the current materials, methods and difficulties according to the year of licence and educational background of Korean dentists in Class II direct composite resin restorations.

Total 17 questions were included in the questionnaire. Questions were broadly divided into two parts; first, operator's information, and second, the materials and methods used in Class II posterior composite restoration. The questionnaire was sent to dentists enrolled in Korean Dental Association via e-mail. Total 12,193 e-mails were distributed to dentists, 2,612 e-mails were opened, and 840 mails (32.2%) were received from respondents. The data was statically analyzed by chi-square test using SPSS(v. 12.0.1, SPSS Inc, Chicago, IL, USA).

Male dentists among respondents was 79%. 60.3% of the respondents acquired their licences recently (1998-2007), and 77% practiced in private offices. 83.4% have acquired their knowledge through school lectures, conferences and seminars.

For the Class II restorations, gold inlays were preferred by 65.7% of respondents, while direct composite resin restorations were used by 12.1% amalgam users were only 4.4% of respondents.

For the restorative technique, 74.4% of respondents didn't use rubber dam as needed. For the matrix, mylar strip (53.4%), metal matrix (33.8%) and Palodent system (6.5%) were used. 99.6% of respondents restored the Class II cavity by incremental layering.

Obtaining of the tight interproximal contact was considered as the most difficult procedure (57.2%) followed by field isolation (21%).

Among various bonding systems, 22.6% of respondents preferred SE Bond and 20.2% used Single Bond. Z-250 was used most frequently among a variety of composite resins.

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A review of dental antibacterial agents and antibacterial modification of composite resins and dentin adhesives
Hojin Moon
Korean Journal of Dental Materials.2024; 51(4): 189. CrossRef
Comparison of operative techniques between female and male dentists in class 2 and class 5 resin composite restorations
Juhea Chang, Hae-Young Kim, Ho-Hyun Son
Journal of Korean Academy of Conservative Dentistry.2010; 35(2): 116. CrossRef

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Effect of pre-heating on some physical properties of composite resin: Myoung Uk Jin, Sung Kyo Kim; J Korean Acad Conserv Dent 2009;34(1):30-37. Published online January 31, 2009; DOI: https://doi.org/10.5395/JKACD.2009.34.1.030

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The purpose of this study was to evaluate the effect of pre-heating on some physical properties of composite resin.

Eighty extracted, noncarious human molars were used in the present study. Four different temperatures of composite resin were used: 4℃, 17℃, 48℃, and 56℃. The 4℃ and 17℃ values represented the refrigerator storage temperature and room temperature respectively. For 48℃ and 56℃, composite resin was heated to the temperatures. As physical properties of composite resin, shear bond strength, microhardness, and degree of conversion were measured. The data for each group were subjected to one-way ANOVAs followed by the Tukey's HSD test at 95% confidence level.

Both in enamel and dentin, among composite resin of 4℃, 17℃, 48℃, and 56℃, the pre-heated composite resin up to 56℃ revealed the highest shear bond strength, and pre-heated composite resin to the higher temperature revealed higher shear bond strength.

Microhardness value was also higher with composite resin of higher temperature.

Degree of conversion was also higher with composite resin of the higher temperature.

In this study, it seems that pre-heating composite resin up to the higher temperature may show higher shear bond strength, higher microhardness value, and higher degree of conversion. Therefore, when using composite resin in the clinic, preheating the composite resin could be recommended to have enhanced physical properties of it.

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Effect of Thermocycling on the Microhardness of Pre-Heated and Non-Heated Zirconium Composite Resin
P. Saloni, Kavitha Sankaran, S. Balaji Ganesh, S. Jayalakshmi, V. Vishnu Priya, R. Gayathri
Journal of International Oral Health.2025; 17(4): 304. CrossRef
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Brelian Elok Septyarini, Irfan Dwiandhono, Dian N. Agus Imam
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The Effect of Temporary Filling Materials on The Adhesion between Dentin Adhesive-coated Surface and Resin Inlay: Tae-Gun Kim, Kwang-Won Lee, Mi-Kyung Yu; J Korean Acad Conserv Dent 2008;33(6):553-559. Published online November 30, 2008; DOI: https://doi.org/10.5395/JKACD.2008.33.6.553

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The purpose of this research was to compare the microtensile bond strength of resin coated surface and resin inlay according temporary filling materials prior to applying self-adhesive resin cement. Caviton(GC, Japan), Provifil(Promedica, Neumunster, Germany), Provifil(Promedica, Neumunster, Germany) & petrolatum, and Eugenol-based cement, Tembond(Kerr, Orange CA, USA) were used as temporary filling materials. After fabrication of Tescera(Bisco, Schamburg IL, USA), it was bonded with a self-adhesive resin cement, Rely X unicem(3M, St. Paul. Minn, USA). After this procedure, the microtensile bond strength was measured and it was analyzed through one-way ANOVA and Duncan test(p<0.05).

Caviton(GC, Tokyo, Japan) showed statistical difference except for the control(group I) and the saliva(group II)(p<0.05). Provifil(group IV), Provifil & petroneum(group V), Tembond(group VI) had lower microtensile bond strength.

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Shear bond strength of a self-adhesive resin cement to resin-coated dentin
Jee-Youn Hong, Cheol-Woo Park, Jeong-Uk Heo, Min-Ki Bang, Jae-Jun Ryu
The Journal of Korean Academy of Prosthodontics.2013; 51(1): 27. CrossRef
Microtensile bond strength of resin inlay bonded to dentin treated with various temporary filling materials
Tae-Woo Kim, Bin-Na Lee, Young-Jung Choi, So-Young Yang, Hoon-Sang Chang, Yun-Chan Hwang, In-Nam Hwang, Won-Mann Oh
Journal of Korean Academy of Conservative Dentistry.2011; 36(5): 419. CrossRef

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The effect of different curing modes on composite resin/dentin bond strength in class icavities: Shin-young Baek, Young-Gon Cho, Byeong-Choon Song; J Korean Acad Conserv Dent 2008;33(5):428-434. Published online September 30, 2008; DOI: https://doi.org/10.5395/JKACD.2008.33.5.428

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The purpose of this study was to compare the microtensile bond strength in Class I cavities associated with different light curing modes of same light energy density.

Occlusal enamel was removed to expose a flat dentin surface and twenty box-shaped Class I cavities were prepared in dentin. Single Bond (3M Dental product) was applied and Z 250 was inserted using bulk technique. The composite was light-cured using one of four techniques; pulse delay (PD group), soft-start (SS group), pulse cure (PC group) and standard continuous cure (CC group). The light-curing unit capable of adjusting time and intensity (VIP, Bisco Dental product) was selected and the light energy density for all curing modes was fixed at 16 J/cm². After storage for 24 hours, specimens were sectioned into beams with a rectangular cross-sectional area of approximately 1 mm². Microtensile bond strength (µTBS) test was performed using a universal testing machine (EZ Test, Shimadzu Co.). The results were analyzed using oneway ANOVA and Tukey's test at significance level 0.05. The µTBS of PD group and SS group was higher than that of PC group and CC group.

Within the limitations of this in vitro study, modification of curing modes such as pulse delay and soft start polymerization can improve resin/dentin bond strength in Class I cavities by controlling polymerization velocity of composite resin.

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Effect of intermittent polymerization on the rate of polymerization shrinkage and cuspal deflection in composite resin: Min Kyung Kim, Sung Ho Park, Deog Gyu Seo, Yun Jung Song, Yoon Lee, Chan Young Lee; J Korean Acad Conserv Dent 2008;33(4):341-351. Published online July 31, 2008; DOI: https://doi.org/10.5395/JKACD.2008.33.4.341

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This study investigated the effect of intermittent polymerization on the rate of polymerization shrinkage and cuspal deflection in composite resins.

The linear polymerization shrinkage of each composite was measured using the custom-made linometer along with the light shutter specially devised to block the light at the previously determined interval. Samples were divided into 4 groups by light curing method; Group 1) continuous light (60s with light on); Group 2) intermittent light (cycles of 3s with 2s light on & 1s with light off for 90s); Group 3) intermittent light (cycles of 2s with 1s light on & 1s with light off for 120s); Group 4) intermittent light (cycles of 3s with 1s light on & 2s with light off for 180s). The amount of linear polymerization shrinkage was measured and its maximum rate (Rmax) and peak time (PT) in the first 15 seconds were calculated. For the measurement of cuspal deflection of teeth, MOD cavities were prepared in 10 extracted maxillary premolars. Reduction in the intercuspal distance was measured by the custom-made cuspal deflection measuring machine. ANOVA analysis was used for the comparison of the light curing groups and t-test was used to determine significant difference between the composite resins.

Pyramid showed the greater amount of polymerization shrinkage than Heliomolar (p < 0.05). There was no significant difference in the linear polymerization shrinkage among the groups. The Rmax was group 4 < 3, 2 < 1 in Heliomolar and group 3 < 4 < 2, 1 in Pyramid (p < 0.05). Pyramid demonstrated greater cuspal deflection than Heliomolar. The cuspal deflection in Heliomolar was group 4 < 3 < 2, 1 and group 4, 3 < 2, 1 in Pyramid (p < 0.05).

It was concluded that the reduced rate of polymerization shrinkage by intermittent polymerization can help to decrease the cuspal deflection.

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