Microtensile bond strength of silorane-based composite specific adhesive system using different bonding strategies.
- Author:
Laura Alves BASTOS
1
;
Ana Beatriz Silva SOUSA
;
Brahim DRUBI-FILHO
;
Fernanda de Carvalho PANZERI PIRES-DE-SOUZA
;
Lucas da Fonseca Roberti GARCIA
Author Information
- Publication Type:Original Article
- Keywords: Adhesive system; Bond strength; Low-shrinkage; Silorane based-composite
- MeSH: Adhesives*; Dentin; Humans; Molar; Silorane Resins; Tooth
- From:Restorative Dentistry & Endodontics 2015;40(1):23-29
- CountryRepublic of Korea
- Language:English
- Abstract: OBJECTIVES: The aim of this study was to evaluate the effect of pre-etching on the bond strength of silorane-based composite specific adhesive system to dentin. MATERIALS AND METHODS: Thirty human molars were randomly divided into 5 groups according to the different bonding strategies. For teeth restored with silorane-based composite (Filtek Silorane, 3M ESPE), the specific self-etching adhesive system (Adhesive System P90, 3M ESPE) was used with and without pre-etching (Pre-etching/Silorane and Silorane groups). Teeth restored with methacrylate based-composite (Filtek Z250, 3M ESPE) were hybridized with the two-step self-etching system (Clearfil SE Bond, Kuraray), with and without pre-etching (Pre-etching/Methacrylate and Methacrylate groups), or three-step adhesive system (Adper Scotchbond Multi-Purpose, 3M ESPE) (Three-step/Methacrylate group) (n = 6). The restored teeth were sectioned into stick-shaped test specimens (1.0 x 1.0 mm), and coupled to a universal test machine (0.5 mm/min) to perform microtensile testing. RESULTS: Pre-etching/Methacrylate group presented the highest bond strength values, with significant difference from Silorane and Three-step/Methacrylate groups (p < 0.05). However, it was not significantly different from Preetching/Silorane and Methacrylate groups. CONCLUSIONS: Pre-etching increased bond strength of silorane-based composite specific adhesive system to dentin.
