不同类型偶联剂处理对瓷和树脂黏接界面的影响

Effects of Different Silane Coupling Agents on Porcelain/Composite Resin Bonding Interface.

目的:比较瓷表面不同酸蚀状态下,4种硅烷偶联剂对瓷和树脂之间黏接界面的影响。方法:将40个瓷试件按照所使用硅烷偶联剂的不同分为4组,每组包括磷酸和HF处理2个亚组各5个试件。表面处理后将瓷试件与复合树脂黏接,将黏接完成后的试件切取纵断面,电镜下观察不同界面形态在整个黏接界面所占比例。结果:HF处理与2种双组分偶联剂相配合产生的黏接界面完整率最高(P<0.05),2种单组分偶联剂与HF配合使用的效果同2种双组分偶联剂与磷酸配合使用的效果没有显著差异(P>0.05)。结论:不同种类偶联剂对瓷和树脂之间的黏接密合度有明显影响,选用合适的双组分陶瓷偶联剂与磷酸处理相配合,可以获得较为理想的黏接界面形态。

Objective： To evaluate the bending integrities between composite resin and porcelain conditioned with different silane coupling agents after different etching. Methods： Forty polished porcelain specimens were divided into four groups on the basis of four different commercial silane coupling agents. Each group was then subdivided into two subgroups of 5 specimens according to H3PO4 and HF etching. After surface treatment, the composite resin was bonded to porcelain. Sampies were cut and observed with SEM. Results： HF etching combined with two - mix silane coupling agents generated the best integrity in this study. There was no significant difference in the bending integrity between the two - mix silanes after H3PO4 etching and the One - mix silanes after HF etching. Conclusion： The type of different silane coupling agents has significant influence on the bending interface between porcelain and composite resin. Ideal bonding integrity could be achieved when appropriate two - mix silane coupling agent was used.