临床口腔医学杂志2018，Vol.34Issue(5)：278-281,4.DOI:10.3969/j.issn.1003-1634.2018.05.007
显微CT法研究中国人上颌第二前磨牙分支根管解剖形态
Micro-computed tomography assessment of branch canal anatomy of Chinese maxillary second premolars
摘要
Abstract
Objective:To investigate branch canal morphology in Chinese maxillary second premolars with micro-CT.Methods:One-hunderd maxillary second premolars were scanned by micro-CT and root canals were visualized by three-dimentional reconstruction model.Branch canals and apical delta were recorded and incidence,distribution and exit opening direction of branch canals were analyzed.Results:Branch canals were recorded in eighty-six samples with an incidence of 86%.A total of 231 branch canals were recorded,93.94% of branch canals located at the apical third.27.71% and 29%exit opening direction of branch canals were found at mesial and distal side,respectively.Incidence of apical delta was 10%. Conclusion:The root canal system of maxillary first premolars was complicated,with a high incedence of branch canals.It is crucial to get familiar with the branch canal morphology in order to improve the success rate of root canal treatment.关键词
上颌第二前磨牙/分支根管/显微CT技术Key words
Maxillary second premolars/Branch root canals/Micro-CT technique分类
医药卫生引用本文复制引用
苏征,白雨豪,侯本祥..显微CT法研究中国人上颌第二前磨牙分支根管解剖形态[J].临床口腔医学杂志,2018,34(5):278-281,4.基金项目
北京市医管局"青苗计划"(QML20171503) （QML20171503）
