中国美容医学2013，Vol.22Issue(1)：157-159,3.
不同纤维桩表面固位结构对粘结剂层的影响
Influence of different surface retaining structure of fiber post on bonding layer
摘要
Abstract
Objective To compare the effects of the different retaining structure on the bonding layer of endodontically treated mandibular first premolars restored with glass fiber posts. Methods A total of 36 endodontically treated mandibular first premolars were divided into three groups randomly, prepared and then fixed with different forms of glass fiber post. For fracture testing.we placed each specimen on a universal testing machine and then loaded on them, respectively,until they fractured.For each specimen,we recorded the load under which the interface between dentin and its adhesive began to crack and the fracture type of teeth.AII data were analyzed by ANOVA with the use of SPSS 16.0 software package. Results The fracture values of three groups were as follows:Group A (469.62±29.68N);Group B (286.25±28.11N);Group C (468.17±55.07N).The fracture resistance of the three group are:A>B;C>B.Difference was not statistically significant between group A and group C. Conclusion Serrate retaining structure under the loading force damage to bonding layer.while bulletheaded retaining structure may disperse stress effectively and furthermore be helpful to retention and stability of post and core.The fracture types of all 3 fiber posts are good to repreparate.关键词
玻璃纤维桩/粘结剂层/固位结构Key words
glass fiber post/bonding layer/retaining structure分类
医药卫生引用本文复制引用
贾旭贝,谢伟丽,谢琪,周大博..不同纤维桩表面固位结构对粘结剂层的影响[J].中国美容医学,2013,22(1):157-159,3.基金项目
黑龙江省教育厅课题(11551184) （11551184）
