不同粘接方式对陶瓷全冠咬合强度的影响

目的 研究不同粘接剂与不同的粘接界面处理方法对陶瓷全冠咬合强度的影响，选择最佳粘接方式。方法 选用人新鲜离体磨牙进行牙体制备并制作陶瓷全冠，模拟人体口腔生理环境，测试三种粘剂和三种界面处理方式粘接陶瓷全冠的咬合强度。结果 CC－1粘接的陶瓷全冠咬合强度明显高于GI和ZOP粘接的陶瓷全冠咬合强度，氢氟酸酸蚀或KH－570处理可提高CC－1粘接陶瓷全冠咬合强度，二者同时采用则提高更为明显，但对ZOP和GI粘接陶瓷全冠咬合强度影响不大。结论 粘接剂影响陶瓷全冠的咬合强度，界面处理影响某些粘接剂粘接的陶瓷全冠咬合强度。

Effects of the different bonding way on the occlusal strength of ceramic crown

Objective This research is to choose the best bonding way of ceramic crown by investigating the effects of different bonding agents and interfacial treatment on the occlusal strength of ceramic crown.Methods The ceramic crowns were made and cemented on the human fresh molar teeth operated by three bonding agents and three interfacial treatment. The occlusal strength of these ceramic crowns cemented were measured in the imitative human oral physiologic environment. Results The occlusal strength of ceramic crown cemented by CC-1 is obvious higher than by GI and ZOP. Either HF-acid etching or KH-570 coating can increase the occlusal strength of ceramic crown bonded with CC-1 bonding agent. Combining HF-acid etching with KH-570 coating can increase the occlusal strength of ceramic crown which were bonded with CC-1, and its occlusal strength was higher than HF-acid etching or KH-570 coating. Effects of HF-acid etching or KF-570 coating to occlusal strength of ceramic crowns which were bonded with ZOP or GI are not statistically significant.Conclusion The bonding agents can affect the occlusal strength of ceramic crowns and the interfacial treatment can affect the occlusal strength of ceramic crowns which were bonded with some bonding agents.