Bond strength of four adhesive systems to dentin

Author(s)

Marcela Rocha de Oliveira Carrilho ^[1] ; Alessandra Reis ^[2] ; Alessandro Dourado Loguercio ^[3] ; Leonardo Eloy Rodrigues Filho ^[4]

Affiliation

^[1] Universidade de São Paulo. Faculdade de Odontologia. Departamento de Materiais Dentários

^[2] Universidade do Oeste de Santa Catarina. Departamento de Materiais Dentários e Dentística Operatória

^[3] Universidade do Oeste de Santa Catarina. Departamento de Materiais Dentários e Dentística Operatória

^[4] Universidade de São Paulo. Faculdade de Odontologia. Departamento de Materiais Dentários

• Document type: Journal article
• Source: Pesquisa Odontológica Brasileira; v. 16, n. 3, p. 251-256, 2002-09-00.

Abstract

The purpose of the present study was to evaluate the bond strength of four adhesive systems to dentin. Twelve human third molars had their occlusal enamel removed in order to expose a flat dentinal surface, on which the adhesive procedures were carried out. The teeth were divided into four groups, according to the employed adhesive system and composite resin: Group 1 - Single Bond + P60 (SB); Group 2 - Bond 1 + Surefil (B1); Group 3 - Prime & Bond NT + Alert (NT); and Group 4 - Prime & Bond 2.1 + TPH (2.1). After 24 h in distilled water at 37ºC, the teeth were longitudinally sectioned in two perpendicular directions in order to obtain parallelogram-shaped specimens with a cross-sectional area of 0.8 mm² and 10 mm of length, on the average. The test specimens were submitted to microtensile test. The data were submitted to ANOVA (alpha = 0.05), which revealed no differences between the groups, although the analysis of the specimens that presented early fracture evidenced the lower sensitivity of the SB system. (AU)