Restorative Dentistry & Endodontics

Research Articles

Nanoleakage of apical sealing using a calcium silicate-based sealer according to canal drying methods: Yoon-Joo Lee, Kyung-Mo Cho, Se-Hee Park, Yoon Lee, Jin-Woo Kim; Restor Dent Endod 2024;49(2):e20. Published online April 19, 2024; DOI: https://doi.org/10.5395/rde.2024.49.e20

Abstract PDF PubReader ePub: Objectives
This study investigated the nanoleakage of root canal obturations using calcium silicate-based sealer according to different drying methods.
Materials and Methods
Fifty-two extracted mandibular premolars with a single root canal and straight root were selected for this study. After canal preparation with a nickel-titanium rotary file system, the specimens were randomly divided into 4 groups according to canal drying methods (1: complete drying, 2: blot drying/distilled water, 3: blot drying/NaOCl, 4: aspiration only). The root canals were obturated using a single-cone filling technique with a calcium silicate–based sealer. Nanoleakage was evaluated using a nanoflow device after 24 hours, 1 week, and 1 month. Data were collected twice per second at the nanoscale and measured in nanoliters per second. Data were statistically analyzed using the Kruskal-Wallis and Mann–Whitney U-tests (p < 0.05).
Results
The mean flow rate measured after 24 hours showed the highest value among the time periods in all groups. However, the difference in the flow rate between 1 week and 1 month was not significant. The mean flow rate of the complete drying group was the highest at all time points. After 1 month, the mean flow rate in the blot drying group and the aspiration group was not significantly different.
Conclusions
Within the limitations of this study, the canal drying method had a significant effect on leakage and sealing ability in root canal obturations using a calcium silicate-based sealer. Thus, a proper drying procedure is critical in endodontic treatment.

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Surface microhardness of three thicknesses of mineral trioxide aggregate in different setting conditions: Noushin Shokouhinejad, Leila Jafargholizadeh, Mehrfam Khoshkhounejad, Mohammad Hossein Nekoofar, Maryam Raoof; Restor Dent Endod 2014;39(4):253-257. Published online August 20, 2014; DOI: https://doi.org/10.5395/rde.2014.39.4.253

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Objectives

This study aimed to compare the surface microhardness of mineral trioxide aggregate (MTA) samples having different thicknesses and exposed to human blood from one side and with or without a moist cotton pellet on the other side.

Materials and Methods

Ninety cylindrical molds with three heights of 2, 4, and 6 mm were fabricated. In group 1 (dry condition), molds with heights of 2, 4, and 6 mm (10 molds of each) were filled with ProRoot MTA (Dentsply Tulsa Dental), and the upper surface of the material was not exposed to any additional moisture. In groups 2 and 3, a distilled water- or phosphate-buffered saline (PBS)-moistened cotton pellet was placed on the upper side of MTA, respectively. The lower side of the molds in all the groups was in contact with human blood-wetted foams. After 4 day, the Vickers microhardness of the upper surface of MTA was measured.

Results

In the dry condition, the 4 and 6 mm-thick MTA samples showed significantly lower microhardness than the 2 mm-thick samples (p = 0.003 and p = 0.001, respectively). However, when a distilled water- or PBS-moistened cotton pellet was placed over the MTA, no significant difference was found between the surface microhardness of samples having the abovementioned three thicknesses of the material (p = 0.210 and p = 0.112, respectively).

Conclusions

It could be concluded that a moist cotton pellet must be placed over the 4 to 6 mm-thick MTA for better hydration of the material. However, this might not be necessary when 2 mm-thick MTA is used.

Citations

Citations to this article as recorded by

MTA as modulator of periapical tissue healing in rat molar: A histological study
Christian Khoswanto, Ira Kusuma Dewi
Journal of Oral Biology and Craniofacial Research.2024; 14(2): 201. CrossRef
An Update on Endodontic Microsurgery of Mandibular Molars: A Focused Review
Sun Mi Jang, Euiseong Kim, Kyung-San Min
Medicina.2021; 57(3): 270. CrossRef
Assessment of Mineral Trioxide Aggregate Setting in Simulated Root Canal with Different Root Canal Wall Thickness: In Vitro Study
Radovan Žižka, Radim Čtvrtlík, Jan Tomáštík, Kamila Fačevicová, Ondřej Vencálek, Jiří Šedý, David Marinčák
Applied Sciences.2021; 11(4): 1727. CrossRef
Evaluation of the bioactivity of fluoride‐enriched mineral trioxide aggregate on osteoblasts
S. Proksch, J. Brossart, K. Vach, E. Hellwig, M. J. Altenburger, L. Karygianni
International Endodontic Journal.2018; 51(8): 912. CrossRef
Antimicrobial and antibiofilm activities of MTA supplemented with bismuth lipophilic nanoparticles
Rene HERNANDEZ-DELGADILLO, Casiano DEL ANGEL-MOSQUEDA, Juan Manuel SOLÍS-SOTO, Silvia MUNGUIA-MORENO, Nayely PINEDA-AGUILAR, Rosa Isela SÁNCHEZ-NÁJERA, Shankararaman CHELLAM, Claudio CABRAL-ROMERO
Dental Materials Journal.2017; 36(4): 503. CrossRef
Carbohydrate-electrolyte drinks exhibit risks for human enamel surface loss
Mary Anne Sampaio de Melo, Vanara Florêncio Passos, Juliana Paiva Marques Lima, Sérgio Lima Santiago, Lidiany Karla Azevedo Rodrigues
Restorative Dentistry & Endodontics.2016; 41(4): 246. CrossRef

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Effects of dentin moisture on the push-out bond strength of a fiber post luted with different self-adhesive resin cements: Sevinç Aktemur Türker, Emel Uzunoğlu, Zeliha Yılmaz; Restor Dent Endod 2013;38(4):234-240. Published online November 12, 2013; DOI: https://doi.org/10.5395/rde.2013.38.4.234

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Objectives

This study evaluated the effects of intraradicular moisture on the pushout bond strength of a fibre post luted with several self-adhesive resin cements.

Materials and Methods

Endodontically treated root canals were treated with one of three luting cements: (1) RelyX U100, (2) Clearfil SA, and (3) G-Cem. Roots were then divided into four subgroups according to the moisture condition tested: (I) dry: excess water removed with paper points followed by dehydration with 95% ethanol, (II) normal moisture: canals blot-dried with paper points until appearing dry, (III) moist: canals dried by low vacuum using a Luer adapter, and (IV) wet: canals remained totally flooded. Two 1-mm-thick slices were obtained from each root sample and bond strength was measured using a push-out test setup. The data were analysed using a two-way analysis of variance and the Bonferroni post hoc test with p = 0.05.

Results

Statistical analysis demonstrated that moisture levels had a significant effect on the bond strength of luting cements (p < 0.05), with the exception of G-Cem. RelyX U100 displayed the highest bond strength under moist conditions (III). Clearfil SA had the highest bond strength under normal moisture conditions (II). Statistical ranking of bond strength values was as follows: RelyX U100 > Clearfil SA > G-Cem.

Conclusions

The degree of residual moisture significantly affected the adhesion of luting cements to radicular dentine.

Citations

Citations to this article as recorded by

Push-Out Bond Strength of Different Luting Cements Following Post Space Irrigation with 2% Chitosan: An In Vitro Study
Shimaa Rifaat, Ahmed Rahoma, Hind Muneer Alharbi, Sawsan Jamal Kazim, Shrouq Ali Aljuaid, Basmah Omar Alakloby, Faraz A. Farooqi, Noha Taymour
Prosthesis.2025; 7(1): 18. CrossRef
Dentin bond strength of resin luting agents under a simulated intra-oral environment
Takashi Washino, Hanemi Tsuruta, Masaomi Ikeda, Michael F. Burrow, Toru Nikaido
Asian Pacific Journal of Dentistry.2024; 24(2): 13. 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
Effect of dentin moisture on the adhesive properties of luting fiber posts using adhesive strategies
Renata Terumi JITUMORI, Rafaela Caroline RODRIGUES, Alessandra REIS, João Carlos GOMES, Giovana Mongruel GOMES
Brazilian Oral Research.2023;[Epub] CrossRef
Influence of different intraradicular chemical pretreatments on the bond strength of adhesive interface between dentine and fiber post cements: A systematic review and network meta‐analysis
Ana Luiza Barbosa Jurema, Ayla Macyelle de Oliveira Correia, Manuela da Silva Spinola, Eduardo Bresciani, Taciana Marco Ferraz Caneppele
European Journal of Oral Sciences.2022;[Epub] CrossRef
SELF ADEZİV REZİN SİMANLAR / SELF ADHESIVE RESIN CEMENTS
Kübra AMAÇ, Engin ESENTÜRK, Bilge TURHAN BAL
Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi.2022; : 1. CrossRef
Postspace pretreatment with 17% ethylenediamine tetraacetic acid, 7% maleic acid, and 1% phytic acid on bond strength of fiber posts luted with a self-adhesive resin cement
PriyaC Yadav, Ramya Raghu, Ashish Shetty, Subhashini Rajasekhara
Journal of Conservative Dentistry.2021; 24(6): 558. CrossRef
Development and characterization of biological bovine dentin posts
Alice Gonçalves Penelas, Eduardo Moreira da Silva, Laiza Tatiana Poskus, Amanda Cypriano Alves, Isis Ingrid Nogueira Simões, Viviane Hass, José Guilherme Antunes Guimarães
Journal of the Mechanical Behavior of Biomedical Materials.2019; 92: 197. CrossRef
Evaluation of the influence of time and concentration of sodium hypochlorite on the bond strength of glass fibre post
Beau Knight, Robert M. Love, Roy George
Australian Endodontic Journal.2018; 44(3): 267. 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
Is the bonding of self-adhesive cement sensitive to root region and curing mode?
Thaynara Faelly BOING, Giovana Mongruel GOMES, João Carlos GOMES, Alessandra REIS, Osnara Maria Mongruel GOMES
Journal of Applied Oral Science.2017; 25(1): 2. CrossRef
A Twofold Comparison between Dual Cure Resin Modified Cement and Glass Ionomer Cement for Orthodontic Band Cementation
Hanaa El Attar, Omnia Elhiny, Ghada Salem, Ahmed Abdelrahman, Mazen Attia
Open Access Macedonian Journal of Medical Sciences.2016; 4(4): 695. CrossRef
Shear bond strengths of various self-adhesive resin cements between bovine dentin and 4 types of adherends
Ah-Jin Kim, Da-Ryeong Park, Seunghan Oh, Ji-Myung Bae
Korean Journal of Dental Materials.2015; 42(4): 365. CrossRef

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Effect of moisture and drying time on the bond strength of the one-step self-etching adhesive system: Yoon Lee, Jeong-Won Park; Restor Dent Endod 2012;37(3):155-159. Published online August 29, 2012; DOI: https://doi.org/10.5395/rde.2012.37.3.155

Abstract PDF PubReader ePub

Objectives

To investigate the effect of dentin moisture degree and air-drying time on dentin-bond strength of two different one-step self-etching adhesive systems.

Materials and Methods

Twenty-four human third molars were used for microtensile bond strength testing of G-Bond and Clearfil S³ Bond. The dentin surface was either blot-dried or air-dried before applying these adhesive agents. After application of the adhesive agent, three different air drying times were evaluated: 1, 5, and 10 sec. Composite resin was build up to 4 mm thickness and light cured for 40 sec with 2 separate layers. Then the tooth was sectioned and trimmed to measure the microtensile bond strength using a universal testing machine. The measured bond strengths were analyzed with three-way ANOVA and regression analysis was done (p = 0.05).

Results

All three factors, materials, dentin wetness and air drying time, showed significant effect on the microtensile bond strength. Clearfil S³ Bond, dry dentin surface and 10 sec air drying time showed higher bond strength.

Conclusions

Within the limitation of this experiment, air drying time after the application of the one-step self-etching adhesive agent was the most significant factor affecting the bond strength, followed by the material difference and dentin moisture before applying the adhesive agent.

Citations

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An in vitro study on comparative evaluation of shear bond strength of bioactive composite to tooth structure with various dentin conditioning agents
Priyanka Pokkula, Shaik Mohammed Asif, Abdullah Alqarni, Shahabe Saquib Abullais, Shaik Mohamed Shamsudeen, Syed M Yassin, Abosofyan S. Atta, Wahaj Ahmad Khan
AIP Advances.2025;[Epub] CrossRef
Shear bond strengths of two newly marketed self‐adhesive resin cements to different substrates: A light and scanning electron microscopy evaluation
Cansu Atalay, Uzay Koc Vural, Ivana Miletic, Sevil Gurgan
Microscopy Research and Technique.2022; 85(5): 1694. CrossRef
The effect of curing mode of dual-cure resin cements on bonding performance of universal adhesives to enamel, dentin and various restorative materials
Erick LUZ MADRIGAL, Antonin TICHY, Keiichi HOSAKA, Masaomi IKEDA, Masatoshi NAKAJIMA, Junji TAGAMI
Dental Materials Journal.2021; 40(2): 446. CrossRef
Effect of adhesive air-drying time on bond strength to dentin: A systematic review and meta-analysis
Mohamed M. Awad, Ali Alrahlah, Jukka P. Matinlinna, Hamdi Hosni Hamama
International Journal of Adhesion and Adhesives.2019; 90: 154. CrossRef
Effect of pre-curing of two universal adhesives on the shear bond strength of resin cement to zirconia
Ga-Eun Son, Tae-Yub Kwon, Young Kyung Kim
Korean Journal of Dental Materials.2019; 46(1): 21. CrossRef
Bonding effectiveness of different dentin conditions on etch-and-rinse mode of two universal adhesives: the confocal laser scanning and shear bond strength
Jounghyun Lee, Ka-Young Cho, Jin-Young Kim, Sungho Park, Byoung-Duck Roh, Yooseok shin
Journal of Adhesion Science and Technology.2017; 31(9): 933. CrossRef
Effect of different air-drying time on the microleakage of single-step self-etch adhesives
Horieh Moosavi, Maryam Forghani, Esmatsadat Managhebi
Restorative Dentistry & Endodontics.2013; 38(2): 73. CrossRef

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Basic Research

Effect of moisture on sealing ability of root canal filling with different types of sealer through the glucose penetration model: Jin-Ah Jang, Hee-Lyang Kim, Mi-Ja Her, Kwang-Won Lee, Mi-Kyung Yu; J Korean Acad Conserv Dent 2010;35(5):335-343. Published online September 30, 2010; DOI: https://doi.org/10.5395/JKACD.2010.35.5.335

Abstract PDF PubReader ePub

Objectives

To compared the effect of different levels of moisture of root canal on the sealing ability after filling with four different types of sealer.

Materials and Methods

Single-rooted teeth (n = 90) instrumented to and apical size of 0.06 / 45 were randomly assigned to 12 experimental groups (n = 7 per group), positive/negative control groups (n = 3 per group). The teeth of the experimental groups (a. DRY; b. PAPER POINT DRY; c. WET) were obturated with sealer (Group 1-3: Sealapex; Group 4-6: AH plus; Group 7-9: Tubuli-seal; Group 10-12: EndoRez) and warm vertical compaction method. After 7 days in 37℃, 100% humidity, the coronal-to-apical microleakage was evaluated quantitatively using a glucose leakage model. The leaked glucose concentration was measured with spectrophotometer at 1, 3, 7, 14, 21, and 30 days. Data were recorded ad mmol/L and statistically analysed with the two-way ANOVA and Duncan test (p = 0.05).

Results

Throughout the experimental period Tubuli-seal/WET (Group 9) showed the highest mean cumulative glucose penetration (178.75 mmol/L), whereas AH plus/DRY (Group 4) had the least (20.78 mmol/L).

Conclusions

The results of this study demonstrated that the moisture condition of root canals at the time of obturation and the type of sealer that was used had a significant effect on leakage and sealing ability. Thus drying procedure according to sealer types is a critical step and should not be missed in endodontic treatment.

Citations

Citations to this article as recorded by

Comparison of push‐out bond strength of endodontic sealers after root canal drying with different techniques
Ahmadreza Sarrafan, Ali Soleymani, Tasnim Bagheri Chenari, Seyedali Seyedmajidi
Clinical and Experimental Dental Research.2023; 9(2): 314. CrossRef
Quantitative microleakage analysis of root canal filling materials in single‐rooted canals
Sin‐Young Kim, Kyung‐Jae Kim, Young‐Ah Yi, Deog‐Gyu Seo
Scanning.2015; 37(4): 237. CrossRef
Evaluation of softening ability of Xylene & Endosolv-R on three different epoxy resin based sealers within 1 to 2 minutes - anin vitrostudy
Pratima Ramakrishna Shenoi, Gautam Pyarelal Badole, Rajiv Tarachand Khode
Restorative Dentistry & Endodontics.2014; 39(1): 17. CrossRef

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