Effect of the Combination of Restorative Material and the Etching Protocol in Enamel Microleakage in Class II Cavities after Thermocycling.

Autor: Dutra NMS; Department of Restorative Dentistry, School of Dentistry, Federal University of Juiz de Fora, Juiz de Fora, Brazil., Baroudi K; RAK College of Dental Sciences, RAK Medical & Health Sciences University, Ras Al Khaimah, UAE.; Postgraduate Program, School of Dentistry, University of Taubate, Taubate, Brazil., Silva ASF; Department of Restorative Dentistry, School of Dentistry, Federal University of Juiz de Fora, Juiz de Fora, Brazil., Laxe LAC; Department of Restorative Dentistry, School of Dentistry, Federal University of Juiz de Fora, Juiz de Fora, Brazil., da Silva Concilio LR; Postgraduate Program, School of Dentistry, University of Taubate, Taubate, Brazil., Tribst JPM; Department of Oral Regenerative Medicine, Academic Centre for Dentistry Amsterdam (ACTA), Universiteit van Amsterdam and Vrije Universiteit, 1081 LA Amsterdam, Netherlands., Salvio LA; Department of Restorative Dentistry, School of Dentistry, Federal University of Juiz de Fora, Juiz de Fora, Brazil.
Jazyk: angličtina
Zdroj: BioMed research international [Biomed Res Int] 2023 Feb 11; Vol. 2023, pp. 1354738. Date of Electronic Publication: 2023 Feb 11 (Print Publication: 2023).
DOI: 10.1155/2023/1354738
Abstrakt: This study is aimed at evaluating the marginal microleakage of bulk-fill class II restorations after thermocycling. Thirty-two human third molars received class II cavities prepared on mesial and distal faces. The cavities were bonded according to the adhesive protocol (total or self-etching). The cavities were then restored with composite and divided into 8 groups based on the composite combination: layering technique with Filtek Z350XT (G1 and G5), first layer with Filtek Z350 XT Flowable Restorative and then Filtek Z350XT (G2 and G6), bulk-fill technique with Filtek One Bulk Fill (G3 and G7), and first layer with Filtek One Bulk Fill Flow and Filtek Z350 XT (G4 and G8). The restorations were then subjected to thermocycling (2000 cycles, 5°C and 55°C, dwell time of 30 s). After aging, the restored teeth were immersed in methylene blue for 48 hours. The restorations ( n = 32) were sectioned in the middle (two sections). The microleakage results were analyzed by two-way ANOVA followed by Tukey's post hoc test ( α = 0.05). The groups did not differ statistically from each other in terms of marginal microleakage ( p = 0.295). It can be concluded that there is no difference in the percentage of microleakage between conventional and bulk-fill resins on both consistencies, as well as there is also no statistically significant difference when the adhesive system is used in a conventional or self-etching mode.
Competing Interests: The authors declare that they have no conflicts of interest.
(Copyright © 2023 Natalia Menezes Santana Dutra et al.)
Databáze: MEDLINE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje