Restorative Dentistry & Endodontics

Maryam Khoroushi

5 Articles

Effect of three nanobiomaterials on microhardness of bleached enamel: Maryam Khoroushi, Farinaz Shirban, Sara Kaveh, Samaneh Doustfateme; Restor Dent Endod 2016;41(3):196-201. Published online July 14, 2016; DOI: https://doi.org/10.5395/rde.2016.41.3.196

Objectives

The aim of this in vitro study was to evaluate the effect of incorporating three different nanobiomaterials into bleaching material on microhardness of bleached enamel.

Materials and Methods

The crowns of 24 extracted sound human molars were sectioned. Sixty enamel specimens (2 × 3 × 4 mm) were selected and divided into five groups (n = 12): Group 1 received no bleaching procedure (control); Group 2 underwent bleaching with a 40% hydrogen peroxide (HP) gel; Groups 3, 4, and 5 were bleached with a 40% HP gel modified by incorporation of bioactive glass (BAG), amorphous calcium phosphate (ACP) and hydroxyapatite (HA), respectively. The enamel microhardness was evaluated. The differences in Knoop microhardness data of each group were analyzed by one-way ANOVA, followed by post hoc Tukey tests.

Results

Significant differences were observed between the study groups. The enamel microhardness changes in Groups 1, 3, 4, and 5 were significantly lower than that of Group 2 (p < 0.001).

Conclusions

Within the limitations of this study, it can be concluded that incorporation of each one of the three tested biomaterials as remineralizing agents might be effective in decreasing enamel microhardness changes subsequent to in-office bleaching.

Citations

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Effect of strontium fluorophosphate bioactive glass on color, microhardness and surface roughness of bleached enamel
Shiza Yezdani, Monisha Khatri, Sampath Vidhya, Sekar Mahalaxmi
Technology and Health Care.2024; 32(1): 285. CrossRef
In vitro evaluation of the effect of addition of biomaterials to carbamide peroxide on the bleaching efficacy and microhardness of enamel
Sowmya Kavoor, M. A. Ranjini, Naval Abdul Aziz, H. K. Ashok, Roopa R. Nadig
Journal of Conservative Dentistry and Endodontics.2024; 27(3): 310. CrossRef
Effect of hydrogen peroxide and its combination with nano-hydroxyapatite or nano-bioactive glass on the enamel demineralization and tooth color: An in vitro study
Elham Kheradmand, Alirea Daneshkazemi, Abdolrahim Davari, Maede Kave, Solmaz Ghanbarnejad
Dental Research Journal.2023;[Epub] CrossRef
Over‐the‐counter bleaching agents can help with tooth whitening maintenance
Olívia Santana Jorge, Carolina Noronha Ferraz de Arruda, Rafaella Tonani Torrieri, Rocio Geng Vivanco, Fernanda de Carvalho Panzeri Pires‐de‐Souza
Journal of Esthetic and Restorative Dentistry.2022; 34(2): 328. CrossRef
Effect of Indigenously Developed Nano-Hydroxyapatite Crystals from Chicken Egg Shell on the Surface Hardness of Bleached Human Enamel
Divya Kunam, Vidhya Sampath, Sujatha Manimaran, Mahalaxmi Sekar
Contemporary Clinical Dentistry.2019; 10(3): 489. CrossRef
Influence of Time Intervals between Bleaching Procedures on Enamel Microhardness and Surface Roughness
Roberta Pimentel de Oliveira, Juliana Costa Pereira Baia, Mara Eliane Soares Ribeiro, Mario Honorato da Silva e Souza Junior, Sandro Cordeiro Loretto
The Open Dentistry Journal.2018; 12(1): 555. CrossRef

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Marginal microleakage of cervical composite resin restorations bonded using etch-and-rinse and self-etch adhesives: two dimensional vs. three dimensional methods: Maryam Khoroushi, Ailin Ehteshami; Restor Dent Endod 2016;41(2):83-90. Published online April 18, 2016; DOI: https://doi.org/10.5395/rde.2016.41.2.83

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Objectives

This study was evaluated the marginal microleakage of two different adhesive systems before and after aging with two different dye penetration techniques.

Materials and Methods

Class V cavities were prepared on the buccal and lingual surfaces of 48 human molars. Clearfil SE Bond and Single Bond (self-etching and etch-and-rinse systems, respectively) were applied, each to half of the prepared cavities, which were restored with composite resin. Half of the specimens in each group underwent 10,000 cycles of thermocycling. Microleakage was evaluated using two dimensional (2D) and three dimensional (3D) dye penetration techniques separately for each half of each specimen. Data were analyzed with SPSS 11.5 (SPSS Inc.), using the Kruskal-Wallis and Mann-Whitney U tests (α = 0.05).

Results

The difference between the 2D and 3D microleakage evaluation techniques was significant at the occlusal margins of Single bond groups (p = 0.002). The differences between 2D and 3D microleakage evaluation techniques were significant at both the occlusal and cervical margins of Clearfil SE Bond groups (p = 0.017 and p = 0.002, respectively). The difference between the 2D and 3D techniques was significant at the occlusal margins of non-aged groups (p = 0.003). The difference between these two techniques was significant at the occlusal margins of the aged groups (p = 0.001). The Mann-Whitney test showed significant differences between the two techniques only at the occlusal margins in all specimens.

Conclusions

Under the limitations of the present study, it can be concluded that the 3D technique has the capacity to detect occlusal microleakage more precisely than the 2D technique.

Citations

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Effect of different types of adhesive systems on the bond strength and marginal integrity of composite restorations in cavities prepared with the erbium laser—a systematic review
Deepti Dua, Ankur Dua, Eugenia Anagnostaki, Riccardo Poli, Steven Parker
Lasers in Medical Science.2022; 37(1): 19. CrossRef
Comparing the Ability of Various Resin-Based Composites and Techniques to Seal Margins in Class-II Cavities
Abdullah Saleh Aljamhan, Sultan Ali Alhazzaa, Abdulrahman Hamoud Albakr, Syed Rashid Habib, Muhammad Sohail Zafar
Polymers.2021; 13(17): 2921. CrossRef
Comparison of the Ability of Two Brands of CBCT with That of SEM to Detect the Marginal Leakage of Class V Composite Resin Restorations
Mitra Karbasi Kheir, Leili Khayam, Mehrbakhsh Nilashi
The Scientific World Journal.2021; 2021: 1. CrossRef
Analysis of microleakage and marginal gap presented by new polymeric systems in class V restorations: An in vitro study
Jefferson Ricardo Pereira, Hugo Alberto Vidotti, Lindomar Corrêa Júnior, Alef Vermudt, Mauro de Souza Almeida, Saulo Pamato
The Saudi Dental Journal.2021; 33(3): 156. CrossRef
Hydrolysis-resistant and stress-buffering bifunctional polyurethane adhesive for durable dental composite restoration
Jiahui Zhang, Xiaowei Guo, Xiaomeng Zhang, Huimin Wang, Jiufu Zhu, Zuosen Shi, Song Zhu, Zhanchen Cui
Royal Society Open Science.2020; 7(7): 200457. CrossRef
A comparison of the marginal and internal fit of porcelain laminate veneers fabricated by pressing and CAD-CAM milling and cemented with 2 different resin cements
Ziad N. Al-Dwairi, Rana M. Alkhatatbeh, Nadim Z. Baba, Charles J. Goodacre
The Journal of Prosthetic Dentistry.2019; 121(3): 470. CrossRef
Microleakage in class V cavities prepared using conventional method versus Er:YAG laser restored with glass ionomer cement or resin composite
Sertac Peker, Figen Eren Giray, Basak Durmus, Nural Bekiroglu, Betül Kargül, Mutlu Özcan
Journal of Adhesion Science and Technology.2017; 31(5): 509. CrossRef

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Effect of antioxidants on push-out bond strength of hydrogen peroxide treated glass fiber posts bonded with two types of resin cement: Maryam Khoroushi, Hamid Mazaheri, Pardis Tarighi, Pouran Samimi, Navid Khalighinejad; Restor Dent Endod 2014;39(4):303-309. Published online September 2, 2014; DOI: https://doi.org/10.5395/rde.2014.39.4.303

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Objectives

Hydrogen peroxide (H₂O₂) surface treatment of fiber posts has been reported to increase bond strength of fiber posts to resin cements. However, residual oxygen radicals might jeopardize the bonding procedure. This study examined the effect of three antioxidant agents on the bond strength of fiber posts to conventional and self-adhesive resin cements.

Materials and Methods

Post spaces were prepared in forty human maxillary second premolars. Posts were divided into five groups of 8 each: G1 (control), no pre-treatment; G2, 10% H₂O₂ pre-treatment; G3, G4 and G5. After H₂O₂ application, Hesperidin (HES), Sodium Ascorbate (SA) or Rosmarinic acid (RA) was applied on each group respectively. In each group four posts were cemented with Duo-Link conventional resin cement and the others with self-adhesive BisCem cement. Push-out test was performed and data were analyzed using 2-way ANOVA and tukey's post-hoc test (α = 0.05).

Results

There was a statistically significant interaction between the cement type and post surface treatment on push-out bond strength of fiber posts (p < 0.001, F = 16). Also it was shown that different posts' surface treatments significantly affect the push-out bond strength of fiber posts (p = 0.001). H₂O₂ treated posts (G2) and control posts (G1) cemented with Duo-link showed the highest (15.96 ± 5.07MPa) and lowest bond strengths (6.79 ± 3.94) respectively.

Conclusions

It was concluded that H₂O₂ surface treatment might enhance the bond strength of fiber posts cemented with conventional resin cements. The effect of antioxidants as post's surface treatment agents depends on the characteristics of resin cements used for bonding procedure.

Citations

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Comparison of the push-out bond strength of AH Plus sealer to dentin after using different herbal irrigation solutions as the final rinse
Mohammadreza Nabavizadeh, Fereshte Sobhnamayan, Mahdi Sedigh-Shams, Sepideh Liaghat, Ajinkya M. Pawar
PLOS ONE.2022; 17(11): e0276666. CrossRef
The influence of different treatments on fiber post and root canal to bond strength of fiber post
Deli Niu, Jinfang Xie, Chang Liu, Shanling Ni, Hong Liu
Journal of Adhesion Science and Technology.2021; 35(9): 928. CrossRef
Effect of surface treatment on the dislocation resistance of prefabricated esthetic fiber posts bonded with self-adhesive resin cement: A systematic review and meta-analysis
ShwetaElizabeth Jacob, SabahMohd Zubair, ManuelSebastian Thomas, Vinod Jathanna, Ramya Shenoy
Journal of Conservative Dentistry.2021; 24(2): 113. CrossRef
Dentin pretreatment with Er:YAG laser and sodium ascorbate to improve the bond strength of glass fiber post
Laís Lima Pelozo, Reinaldo Dias Silva-Neto, Silmara Aparecida Milori Corona, Regina Guenka Palma-Dibb, Aline Evangelista Souza-Gabriel
Lasers in Medical Science.2019; 34(1): 47. CrossRef
Test methods for bond strength of glass fiber posts to dentin: A review
F. C. Dos Santos, M. D. Banea, H. L. Carlo, S. De Barros
The Journal of Adhesion.2017; 93(1-2): 159. CrossRef
Effects of hydrogen peroxide pretreatment and heat activation of silane on the shear bond strength of fiber-reinforced composite posts to resin cement
Jung-Hoon Pyun, Tae-Bong Shin, Joo-Hee Lee, Kang-Min Ahn, Tae-Hyung Kim, Hyun-Suk Cha
The Journal of Advanced Prosthodontics.2016; 8(2): 94. CrossRef

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Temperature changes under demineralized dentin during polymerization of three resin-based restorative materials using QTH and LED units: Sayed-Mostafa Mousavinasab, Maryam Khoroushi, Mohammadreza Moharreri, Mohammad Atai; Restor Dent Endod 2014;39(3):155-163. Published online May 13, 2014; DOI: https://doi.org/10.5395/rde.2014.39.3.155

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Objectives

Light-curing of resin-based materials (RBMs) increases the pulp chamber temperature, with detrimental effects on the vital pulp. This in vitro study compared the temperature rise under demineralized human tooth dentin during light-curing and the degrees of conversion (DCs) of three different RBMs using quartz tungsten halogen (QTH) and light-emitting diode (LED) units (LCUs).

Materials and Methods

Demineralized and non-demineralized dentin disks were prepared from 120 extracted human mandibular molars. The temperature rise under the dentin disks (n = 12) during the light-curing of three RBMs, i.e. an Ormocer-based composite resin (Ceram. X, Dentsply DeTrey), a low-shrinkage silorane-based composite (Filtek P90, 3M ESPE), and a giomer (Beautifil II, Shofu GmbH), was measured with a K-type thermocouple wire. The DCs of the materials were investigated using Fourier transform infrared spectroscopy.

Results

The temperature rise under the demineralized dentin disks was higher than that under the non-demineralized dentin disks during the polymerization of all restorative materials (p < 0.05). Filtek P90 induced higher temperature rise during polymerization than Ceram.X and Beautifil II under demineralized dentin (p < 0.05). The temperature rise under demineralized dentin during Filtek P90 polymerization exceeded the threshold value (5.5℃), with no significant differences between the DCs of the test materials (p > 0.05).

Conclusions

Although there were no significant differences in the DCs, the temperature rise under demineralized dentin disks for the silorane-based composite was higher than that for dimethacrylate-based restorative materials, particularly with QTH LCU.

Citations

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Effect of Shade and Light Curing Mode on the Degree of Conversion of Silorane-Based and Methacrylate-Based Resin Composites
Sayed-Mostafa Mousavinasab, Mohammad Atai, Negar Salehi, Arman Salehi
SSRN Electronic Journal.2024;[Epub] CrossRef
Pulp chamber temperature rise in light-cure bonding of brackets with and without primer, in intact versus restored teeth
Gabriela Cenci SCHMITZ, Fernanda de Souza HENKIN, Mauricio MEZOMO, Mariana MARQUEZAN, Gabriela BONACINA, Maximiliano Schünke GOMES, Eduardo Martinelli Santayana de LIMA
Dental Press Journal of Orthodontics.2023;[Epub] CrossRef
In Vivo Pulp Temperature Changes During Class V Cavity Preparation and Resin Composite Restoration in Premolars
DC Zarpellon, P Runnacles, C Maucoski, DJ Gross, U Coelho, FA Rueggeberg, CAG Arrais
Operative Dentistry.2021; 46(4): 374. CrossRef

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Pull-out bond strength of a self-adhesive resin cement to NaOCl-treated root dentin: effect of antioxidizing agents: Maryam Khoroushi, Marzieh Kachuei; Restor Dent Endod 2014;39(2):95-103. Published online March 21, 2014; DOI: https://doi.org/10.5395/rde.2014.39.2.95

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Objectives

This study evaluated the effect of three antioxidizing agents on pull-out bond strengths of dentin treated with sodium hypochlorite.

Materials and Methods

Root canals of 75 single-rooted human teeth were prepared. Fifteen teeth were irrigated with normal saline for a negative control group, and the remaining 60 teeth (groups 2 - 5) with 2.5% NaOCl. The teeth in group 2 served as a positive control. Prior to post cementation, the root canals in groups 3 - 5 were irrigated with three antioxidizing agents including 10% rosmarinic acid (RA, Baridge essence), 10% hesperidin (HPN, Sigma), and 10% sodium ascorbate hydrogel (SA, AppliChem). Seventy-five spreaders (#55, taper .02, Produits Dentaires S.A) were coated with silica and silanized with the Rocatec system and ceramic bond. All the prepared spreaders were cemented with a self-adhesive resin cement (Bifix SE, Voco Gmbh) in the prepared canals. After storage in distilled water (24 h/37℃), the spreaders were pulled out in a universal testing machine at a crosshead speed of 1.0 mm/min. Pull-out strength values were analyzed by one-way ANOVA and Tukey's HSD test (α = 0.05).

Results

There were significant differences between study groups (p = 0.016). The highest pull-out strength was related to the SA group. The lowest strength was obtained in the positive control group.

Conclusions

Irrigation with NaOCl during canal preparation decreased bond strength of resin cement to root dentin. Amongst the antioxidants tested, SA had superior results in reversing the diminishing effect of NaOCl irrigation on the bond strength to root dentin.

Citations

Citations to this article as recorded by

In Vitro Bond Strength of Dentin Treated with Sodium Hypochlorite: Effects of Antioxidant Solutions
Guillermo Grazioli, Elisa de León Cáceres, Romina Tessore, Rafael Lund, Ana Monjarás-Ávila, Monika Lukomska-Szymanska, Louis Hardan, Rim Bourgi, Carlos Cuevas-Suárez
Antioxidants.2024; 13(9): 1116. CrossRef
Effect of Dentin Irrigants on Push-Out Bond Strength in Resin Cementation Protocols for Fiber Posts in Endodontically Treated Teeth: An In Vitro Study
Sandra García-Varela, João Carlos Ramos, María José Ginzo-Villamayor, Pablo Castelo-Baz, Ramón Méndez-Díaz, Marcos Aníbal Anache-D’Abate, Tania Gancedo-Gancedo, Manuel Ruíz-Piñón, Soledad Mareque-Bueno, Benjamín José Martín-Biedma
Materials.2024; 17(6): 1432. CrossRef
A facile method for rejuvenating the bonding efficacy of root canal sealer-smeared dentine
Wenqing Lin, Yuan Gao, Surong Chen, Yan Yang, Weihu Ye, Diana Tran, Brian E. Bergeron, Franklin R. Tay, Jingzhi Ma
Journal of Dentistry.2023; 136: 104591. CrossRef
The Effect of Antioxidants on Dentin Bond Strength after Application of Common Endodontic Irrigants: A Systematic Review
Regina Gascón, Leopoldo Forner, Carmen Llena
Materials.2023; 16(6): 2260. CrossRef
Effect of epigallocatechin-3-gallate and thermal cycling on the bond strength of resin cements to the root dentin
Danielle Cristine Messias, Moisés Franco Barbosa da Silva, Natália Spadini de Faria, Tatiane Rocco Dias-Arnez, Fuad Jacob Rached-Júnior, Ana Beatriz Silva Sousa
Odontology.2021; 109(4): 854. CrossRef
Effect of Er
Horieh Moosavi, Farzaneh Ahrari, Maryam Zanjani
Dental Research Journal.2021; 18(1): 17. CrossRef
Effect of sodium hypochlorite on adhesive charactersitics of dentin: A systematic review of laboratory-based testing
Ensanya A. Abou Neel, Jonathan C. Knowles, Laurent Bozec
International Journal of Adhesion and Adhesives.2019; 95: 102419. CrossRef
Effect of irrigant neutralizing reducing agents on the compromised dislocation resistance of an epoxy resin and a methacrylate resin-based root canal sealer in vitro
Pallavi Reddy, Prasanna Neelakantan, Kavitha Sanjeev, Jukka Pekka Matinlinna
International Journal of Adhesion and Adhesives.2018; 82: 206. CrossRef
Sodium Hypochlorite Irrigation and Its Effect on Bond Strength to Dentin
Tariq S. Abuhaimed, Ensanya A. Abou Neel
BioMed Research International.2017; 2017: 1. CrossRef
Test methods for bond strength of glass fiber posts to dentin: A review
F. C. Dos Santos, M. D. Banea, H. L. Carlo, S. De Barros
The Journal of Adhesion.2017; 93(1-2): 159. CrossRef
Impact of conditioning regimens and time on adhesion of a fiber post to root dentin using two resin cements
P. Neelakantan, R. Mohanraj, E. Chua, S. Belli
Journal of Adhesion Science and Technology.2015; 29(4): 337. CrossRef
Effect of antioxidants on push-out bond strength of hydrogen peroxide treated glass fiber posts bonded with two types of resin cement
Maryam Khoroushi, Hamid Mazaheri, Pardis Tarighi, Pouran Samimi, Navid Khalighinejad
Restorative Dentistry & Endodontics.2014; 39(4): 303. CrossRef

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