title: Influence of silane heat treatment on bond strength of resin cement to a feldspathic ceramic.
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.
authors: Federal University of Juiz de Fora, Rua Jose Lourenco Kelme, Campus University, Juiz de Fora, Brazil. rf-carvalho@hotmail.com
authors: Rodrigo Furtado
authors: RF
authors: de Carvalho
authors: Maria Elizabeth Marques Nogueira
authors: ME
authors: Martins
authors: José Renato Cavalcanti
authors: JR
authors: de Queiroz
authors: Fabíola Pessoa Pereira
authors: FP
authors: Leite
authors: Mutlu
authors: M
authors: Ozcan