在可拆卸式固定义齿中应用套筒冠固位体效果研究  

Development of a telescope retainer for detachable fixed denture

作　　者：赵彬[1] 

机构地区：[1]山西医科大学口腔医学系,太原030001

出　　处：《中国药物与临床》2007年第6期415-416,共2页Chinese Remedies & Clinics

基　　金：山西省科技攻关基金资助项目(051205)

摘　　要：目的研制可拆卸式固定义齿的新型固位装置。方法准备标准基牙预备模型,分别制作内冠聚合度2°、3°、4°、5°的双套冠固位体及相对应外冠,并在外冠外铸造梁做为拉伸测力装置,在ChatillonTCD—200拉力/压力测试机测试脱位力。结果内冠聚合度为4°时,能满足可拆卸式固定义齿的固位要求。结论套筒冠固位体为可拆卸式固定义齿的临床应用提供了新型固位装置。Objective To develop a new retainer used for detachable fixed denture. Methods A standard model was generated of standard abutment teeth, and then inner crowns with varied cone angles （ 2°, 3°, 4°and 5°） and the corresponding outer crowns were made. A small bar cast on top of each outer crown was use for evaluation of separating force on a Chatillon TCD-200 tester. Results Separating force was closely related to the cone angle. A cone angle at 4°appeared optimal for retention requirements of detachable fixed denture. Conclusion Telescope retainer provides a new option for clinical use of detachable fixed denture.

关 键 词：牙冠(假体) 义齿精密附着体 牙修复体固位 

分 类 号：R783[医药卫生—口腔医学]