不同桩核材料修复牙体组织抗疲劳性能研究  

Fatigue resistance of different core materials for dental tissue repair

作　　者：洪席超[1] 文静[1] 于世德 HONG Xi-cao;WEN Jing;YU Shi-de(Department of Stomatology, Medical School of Shaoguan College, Shaoguan 512026, China;Affiliated Stomatological Hospital, Foshan College of Science and Technology ,Foshan 528000, China)

机构地区：[1]韶关学院医学院口腔科,广东韶关512026 [2]佛山科学技术学院附属口腔医院·佛山市口腔医院,广东佛山285000

出　　处：《广东医科大学学报》2019年第4期446-449,共4页Journal of Guangdong Medical University

基　　金：广东省医学科研基金(No.A2012698);韶关市创新资金项目(No.2060502)

摘　　要：目的比较几种桩核材料修复前牙后体外抵抗疲劳效果。方法收集非龋原因拔除的上颌中切牙36颗,经过根管充填及去冠后,分别用一体化玻璃纤维桩(A组)、可塑性纤维桩联合树脂核(B组)、预成纤维桩联合树脂核(C组)、天然牙冠(D组)进行桩核修复。结果抗折强度A组>B组>C组(P<0.01),但A组与D组差异无统计学意义(P>0.05)。结论一体化玻璃纤维桩疲劳加载后抗折力高于可塑纤维桩和预成纤维桩。Objective To compare the fatigue resistance of different core materials for anterior teeth repair. Methods Thirty-six 36 maxillary central incisors without caries were treated with the root canal filling and crown removal, followed by post-core restoration with integrated glass fiber pile (group A), plastic fiber pile with resin core (group B), preformed fiber pile with resin core (group C), and natural tooth crown (group D). Results The breaking strength was higher in groups A and D, middle in group B, and lower in group C (P<0.01). Conclusion The breaking strength of integrated glass fiber pile is superior to that of plastic and preformed fiber pile after fatigue loading.

关 键 词：桩核修复 抗疲劳 玻璃纤维桩 

分 类 号：R783[医药卫生—口腔医学]