杨航
YANG Hang

• 1:贵阳市口腔医院

摘要(Abstract)：

目的:研究硅烷偶联剂(CP)对瓷面及金属托槽黏接强度的影响。方法:将100个表面光滑的烤瓷试件按照不同的瓷面处理(喷砂、打磨、氢氟酸酸蚀、磷酸酸蚀、未处理)分为5组,再根据是否使用CP再将各组分为两组,每个小组10个试件,采用3M Unite TM黏接剂粘接托槽,进行冷热水温度循环试验,采用材料试验机测量抗剪切强度,并记录瓷破裂指数。结果:甲、乙、丙三组剪切强度高于丁组合戊组,差异有统计学意义(P<0.05);甲2、乙2和丙2瓷面抗剪切强度高于甲1、乙1和丙1,差异有统计学意义(P<0.05);瓷破裂指数最高、最低的组别分别为丙2组及丁1组;甲1和甲2组、乙1和乙2组以及丙1和丙2组比较,瓷破裂指数的差异有统计学意义(P<0.05)。结论:对采用车针打磨、喷砂处理后的瓷面使用CP可有效的提高托槽与瓷面的粘结强度。
Objective: To observe the effects of silane coupling agent( CP) on bonding strength of metal brackets to ceramic surfaces. Methods: One hundred smooth ceramic specimens were divided into 5 groups according to different preparation methods( group A: sandblasting,group B: polishing,group C: hydrofluoric acid pickling,group D: phosphoric acid pickling,group E: untreated). Each group was divided into two groups: with( group 2) or without( group 1) the use of CP( 10 specimens in each group). Brackets were bonded to specimens in each group by using 3M Unite TM adhesives.After that,the temperature cycle of cooling bath( 5°) and hot bath( 55°) was carried out. Shear bond strength( SBS) was tested and compared among different groups. The porcelain fracture rate was recorded. Results: SBS in group A,B and C was higher than that in group D and E( P < 0. 05). With the use of CP,SBS were greatly enhanced,and the differences were statistically significant( P < 0. 05).Porcelain fracture rate of group C 2 was the highest,and Porcelain fracture rate of group D 1 was the lowest. Conclusions: The bonding strength of brackets to ceramic surfaces can be improved effectively with the use of CP.

关键词(KeyWords)： 正畸矫正器;硅烷偶联剂;瓷面;金属托槽;黏接强度
onthodontio appliances;silane coupling agent;ceramic surface;metal brackets;shear bond strength

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 杨航
YANG Hang

DOI: 10.19367/j.cnki.1000-2707.2015.10.030

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