Influence of light activation of simplified adhesives on the shear bond strength of resin cements to a leucite-reinforced ceramic.

Autor:	Furuse AY; Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil., Scotti CK; Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil., Llerena-Icochea A; Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil., Bombonatti JFS; Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil., Haragushiku GA; Graduate Program in Dentistry, Positivo University, Curitiba, Brazil., Gonzaga CC; Graduate Program in Dentistry, Positivo University, Curitiba, Brazil.
Jazyk:	angličtina
Zdroj:	European journal of dentistry [Eur J Dent] 2018 Jan-Mar; Vol. 12 (1), pp. 3-6.
DOI:	10.4103/ejd.ejd_307_17
Abstrakt:	Objective: This study aims to evaluate the influence of the light activation of simplified adhesives on the shear bond strength of resin cements to a glass-ceramic. Three factors were evaluated: (1) cement in two levels (light cured and dual cured); (2) adhesive in two levels (Single Bond 2 and Single Bond Universal), and (3) light activation in two levels (yes or no). Materials and Methods: Thirty-two 1-mm thick slices of a leucite-reinforced glass-ceramic (IPS Empress CAD) were divided into eight groups according to adhesive (Single Bond 2 or Single Bond Universal), cement (AllCem Veneer or AllCem), and light activation of the adhesive before application of the cement (yes or no). Ceramic surfaces were etched for 60 s with 5% hydrofluoric acid, and adhesives were applied. Four cement cylinders were made over each ceramic slice ( n = 16) and then submitted to shear bond strength tests. Statistical Analysis: Data were analyzed with three-way ANOVA and Tukey (α = 0.05). Results: There were significant differences between adhesives ( P < 0.0001) and no differences between cements ( P = 0.0763) and light activation ( P = 0.4385). No interaction effect occurred ( P = 0.05). Single Bond 2 showed higher bond strength than Single Bond Universal. Conclusions: The light activation of the adhesive before the application of the resin cement did not influence the bond strength. Competing Interests: There are no conflicts of interest.
Databáze:	MEDLINE
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