Influence of silane heat treatment on bond strength of resin cement to a feldspathic ceramic

Rodrigo Furtado de CARVALHO; Maria Elizabeth Marques Nogueira MARTINS; José Renato Cavalcanti de QUEIROZ; Fabíola Pessoa Pereira LEITE; Mutlu ÖZCAN

doi:10.4012/dmj.2010-137

Original Papers

Influence of silane heat treatment on bond strength of resin cement to a feldspathic ceramic

Rodrigo Furtado de CARVALHO, Maria Elizabeth Marques Nogueira MARTINS, José Renato Cavalcanti de QUEIROZ, Fabíola Pessoa Pereira LEITE, Mutlu ÖZCAN

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Keywords: Adhesion, Cementation, Ceramics, Microtensile strength, Thermal treatment

JOURNAL FREE ACCESS

2011 Volume 30 Issue 3 Pages 392-397

DOI https://doi.org/10.4012/dmj.2010-137

View "Advance Publication" version (May 20, 2011).

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Abstract

This study evaluated the influence of heat treatment (HT) of the silane on the microtensile bond strength of resin cement to a feldspathic ceramic. Ceramic (VITA VM7) and composite blocks (N=32) were divided into four groups (n=6 for bond test, n=2 for SEM) at random and subject to following sequence of conditioning: G1: HF 9.6%+Silane+Panavia F2.0, G2: HF 9.6%+Silane+HT+Panavia F2.0, G3: Silane+HT+Panavia F2.0, and G4: Silane+Panavia F2.0. HT was performed in an oven (100°C, 2 minutes). G1 (17.6±2.3 MPa) and G2 (19±3.2 MPa) showed significantly higher mean bond strength than those of G3 (9.1±2.8 MPa) and G4 (10.9±1.8 MPa). SEM analysis showed exclusively mixed failures. Silane HT did not increase the bond strength.

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