下颌恒切牙根管解剖因素与根管治疗难度的相关分析  

Association of Root Canal Therapy Difficulty with Canal Anatomic Factors in Mandibular Permanent Incisors

作　　者：黄定明[1] 高小洁[2] 谭红[2] 周学东[1] 

机构地区：[1]口腔生物医学工程教育部重点实验室四川大学,四川成都610041 [2]四川大学华西口腔医院牙体牙髓科,四川成都610041

出　　处：《华西口腔医学杂志》2006年第4期366-369,共4页West China Journal of Stomatology

基　　金：国家"十五"科技攻关资助项目(2004BA720A23);卫生部临床学科重点建设资助项目[卫(2004-468号)]

摘　　要：目的分析下颌恒切牙根管解剖因素对根管治疗难度的影响。方法选择299颗牙体完整的离体中国人下颌恒切牙为研究对象,测量其根管解剖指标包括根管长度、根管数量及形态、根管弯曲度以及髓腔与根管钙化程度,按照四川大学华西口腔医院牙体牙髓科制定的根管治疗难度系数临床评估标准及美国牙髓病学会推荐的牙髓病例难度评估方法评估该牙根管治疗难度,并采用Logistic回归分析,观察以上各指标与根管治疗难度的相关关系。结果下颌恒切牙根管治疗难度为Ⅰ级、Ⅱ级、Ⅲ级者分别占29.4%、20.1%和50.5%。根管治疗难度与根管长度、数目、钙化程度以及弯曲度存在明显的相关性(P<0.005)。结论下颌恒切牙根管治疗难度与根管解剖密切相关,根管治疗难度较大。Objective To investigate the association of root canal therapy difficulty with canal anatomic factors in Chinese mandibular permanent incisors. Methods Two hundred and ninety nine Chinese permanent incisors were included in this study. The following anatomic items of the root canal were observed： Root canal length, number of root canal, morphology, curvature, and calcification of pulp chamber and root canal. Based on the root canal therapy evaluation criteria, the root canal therapy difficult scores were assessed. The association of root canal therapy difficulty with canal anatomic factors was analyzed with logistic regression analysis. Results The root canal therapy difficulty grade Ⅰ, grade Ⅱ and grade Ⅲ in Chinese mandibular permanent incisors were 29.4%, 20.1% and 50.5%, respectively. The root canal therapy difficulty was significantly associated with the root canal length, number, calcification, and curvature （P〈0.005）. Conclusion The root canal therapy difficulty in Chinese mandibular permanent incisor is significantly with root canal anatomy.

关 键 词：下颌恒切牙 根管解剖 根管治疗 难度评估 

分 类 号：R781.05[医药卫生—口腔医学]