疑难根管治疗术病因分析  

Causation of difficult root canal preparation

作　　者：楚小玉[1] 赵奇[1] 张静[1] 张成飞[2] 魏克立[1] 

机构地区：[1]北京大学口腔医学院门诊部,北京100034 [2]北京大学口腔医学院特诊科,北京100034

出　　处：《牙体牙髓牙周病学杂志》2006年第4期226-228,共3页Chinese Journal of Conservative Dentistry

摘　　要：目的:找到疑难根管发生的原因,以便为其预防提供依据。方法:本文分析了2004-01—2004-03在北京大学口腔医院门诊部显微门诊就诊的疑难根管病例114例。结果:钙化的细小根管和根管再治疗是主要病因,分别占门诊病例的38.60%和34.21%,且以磨牙为主;其次是遗漏根管,占13.16%;根管内器械折断占5.26%。结论:磨牙根管治疗是一难点。临床医师如能做到熟悉磨牙解剖形态,制备充足的开髓洞形,治疗钙化细小根管时注意操作手法,选择合适的器械,将会有助于减少疑难根管病例的发生。AIM. The purpose of this study was to find the causation of difficult root canal preparation. METHODS： 114 cases of difficult root canal therapy with the help of surgical microscope during 2004 02 -03 were studied. RESULTS： The rate of calcified and curved canals was 38. 60% , nonsurgical endodontic retretment was 34.21% , missing canals was13.16% , broken instrument removal was 5.26%. CONCLUSION：Root canal preparation in molar is more difficult. Dentists should know well of the morphology of canals, make adequate access and choose proper instruments.

关 键 词：根管预备 手术显微镜 

分 类 号：R781.05[医药卫生—口腔医学]