The effect of surface treatment and bonding procedures on the bond strength of silorane composite repairs

Acta Odontologica Scandinavica
Adriano Fonseca LimaGiselle Maria Marchi

Abstract

The aim of this study was to evaluate the effect of surface treatments and adhesive protocols on the microtensile bond strength of a low-shrinkage composite repair. Ninety-six blocks of composite resin Filtek LS were prepared using a half-hourglass-shaped silicone matrix. The specimens were storage for 24 h in distilled water and were randomly divided into the experimental (6) and negative control (2) groups (n = 12) according to the surface treatment (diamond bur and aluminum oxide sandblasting) and adhesive protocol (none; Filtek LS adhesive; phosphoric acid + Filtek LS adhesive; and phosphoric acid + silane + Filtek LS adhesive). After the adhesive procedure, the specimens were fixed in an hourglass-shaped silicone matrix and the other half of the specimen was restored. Hourglass shaped specimens (n = 12) were used as positive control (cohesive strength of the resin). The microtensile bonding test was performed at a crosshead speed of 0.5 mm/min. The data were analyzed using ANOVA, Tukey's and Dunnett's tests (α = 0.05). The bond strength values were similar for all experimental groups, except the groups without adhesive application. None of the experimental groups presented results similar to the positive control group. The...Continue Reading

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Citations

Feb 9, 2017·Journal of Dentistry·B A C LoomansM C D N J M Huysmans
Nov 15, 2019·Dental Materials Journal·Carlos Enrique Cuevas-SuárezEvandro Piva
Sep 24, 2020·Journal of Computational Chemistry·Neha PatelPrasad V Bharatam
Jul 3, 2019·Photobiomodulation, Photomedicine, and Laser Surgery·Pedro Henrique Cabral OliveiraSandra Kalil Bussadori

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