关中地区汉族成人前牙根管弯曲度调查  

Root canal curvature of anterior teeth in the Han nationality in Shaanxi province

作　　者：翁希里[1] 于世宾[1] 赵守亮[2] 唐荣银[1] 王捍国[1] 范继红[1] 

机构地区：[1]西安第四军医大学口腔医学院,710032 [2]上海同济大学口腔医学院

出　　处：《实用口腔医学杂志》2007年第6期808-810,共3页Journal of Practical Stomatology

基　　金：国家"十五"攻关课题(编号:2004BA720A23)

摘　　要：目的:了解关中地区汉族成人前牙根管弯曲情况。方法:采用间接影像学手段,运用改良的Schneider测量方法,利用电子测量尺进行测量,分析根管弯曲情况。结果:前牙多数为I型根管,其中上颌尖牙根管弯曲发生率高(68.5%)。各牙位的弯曲发生位置偏根尖1/3处。上颌前牙有个别牙为近远中向S型根管弯曲。上颌尖牙根管弯曲度与年龄有显著相关关系(P=0.03)。结论:前牙根管弯曲情况复杂,上颌尖牙根管弯曲程度重。上颌尖牙根管弯曲度与年龄有显著负相关关系。Objective： To investigate the root canal curvatures of anterior teeth in the Han nationality in Shaanxi province. Methods ：392 permanent anterior teeth were examined by indirect digital radiography both from labiolingual and mesiodistal directions according to Schneider method, root canal curvatures were analyzed by electronic rule. Results： Root canals of the anterior teeth were mainly of type I. High rate of root canal curvature was found in maxillary canines （68.5%） , and most of curves were in the apical third. There was a relationship between the root canal curvatures of maxillary canine and age（ P = 0.03 ）. Conclusion ： Root canal curvatures of maxillary canine are complicated, especially in maxillary canines. The root canal curvatures of maxillary canine decreased with aging.

关 键 词：恒前牙 根管弯曲度 间接影像学 

分 类 号：R781.05[医药卫生—口腔医学]