硅烷热处理对树脂水门汀与长石陶瓷粘结强度的影响。
Influence of silane heat treatment on bond strength of resin cement to a feldspathic ceramic.
机构信息
Federal University of Juiz de Fora, Rua Jose Lourenco Kelme, Campus University, Juiz de Fora, Brazil.
出版信息
Dent Mater J. 2011;30(3):392-7. Epub 2011 May 20.
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.
本研究评估了硅烷的热处理对树脂水门汀与长石陶瓷微拉伸粘结强度的影响。随机将陶瓷（VITA VM7）和复合块（n=32）分为四组（粘结测试 n=6，SEM 测试 n=2），并按以下顺序进行处理：G1：HF 9.6%+硅烷+Panavia F2.0，G2：HF 9.6%+硅烷+HT+Panavia F2.0，G3：硅烷+HT+Panavia F2.0，G4：硅烷+Panavia F2.0。HT 在烤箱中进行（100°C，2 分钟）。G1（17.6±2.3 MPa）和 G2（19±3.2 MPa）的平均粘结强度明显高于 G3（9.1±2.8 MPa）和 G4（10.9±1.8 MPa）。SEM 分析显示仅为混合性失效。硅烷 HT 并未提高粘结强度。
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