Bonding strength of resin cement to silicate glass ceramics for dental CAD/CAM systems is enhanced by combination treatment of the bonding surface

被引:10
|
作者
Shimakura, Yusuke
Hotta, Yasuhiro
Fujishima, Akihiro
Kunii, Jun
Miyazaki, Takashi
Kawawa, Tadaharu
机构
[1] Showa Univ, Sch Dent, Dept Oral Biomat & Technol, Shinagawa Ku, Tokyo 1428555, Japan
[2] Showa Univ, Dept Prosthodont, Sch Dent, Tokyo 1458515, Japan
关键词
glass ceramics; shear bond strength; surface modification;
D O I
10.4012/dmj.26.713
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
To increase the bond strength of CAD/CAM-fabricated, leucite-reinforced glass ceramics with a resin cement, the effects of the following were investigated: surface modification by tribochemical (TBC) treatment, followed by combined application of a silane coupling agent and a functional monomer as a primer. Bond strength was evaluated by a shear bond test. It was found that a silane coupling agent was useful for all the surfaces, particularly for the TBC-treated surface. This was because of the presence of a silica layer on the modified surface. The combination of a silane coupling agent and a functional monomer on the TBC surface allowed marked improvement in bonding, whereby the bonding endured 20,000 cycles of thermal cycling. Therefore, TBC treatment in combination with a silane coupling agent and a functional monomer as a primer substantially increased the bond strength of CAD/CAM-fabricated glass ceramics with resin cement, if the treatment conditions were appropriate.
引用
收藏
页码:713 / 721
页数:9
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