| Literature DB >> 21597220 |
Rodrigo Furtado de Carvalho1, Maria Elizabeth Marques Nogueira Martins, José Renato Cavalcanti de Queiroz, Fabíola Pessoa Pereira Leite, Mutlu Ozcan.
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.Entities:
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Year: 2011 PMID: 21597220
Source DB: PubMed Journal: Dent Mater J ISSN: 0287-4547 Impact factor: 2.102