维吾尔族上颌第二恒磨牙牙体解剖的离体研究  

In Vitro study of the anatomy of 36 maxillary second permanent molars of the Uighur people

作　　者：梁学萍[1] 郭宏 葛菲[1] 林兆全[1] 

机构地区：[1]新疆医科大学一附院口腔颌面外科,830054 [2]乌鲁木齐市口腔医院

出　　处：《实用口腔医学杂志》2009年第2期264-266,共3页Journal of Practical Stomatology

摘　　要：目的:了解维吾尔族上颌第二恒磨牙的牙体解剖基本特点。方法:肉眼观察牙根外形,面磨耗程度,髓室底的形态,根尖孔数目及类型;游标卡尺测量各项长度指标及根尖孔到牙根顶点的距离;透明牙体标本法观察根管系统。结果:上颌第二恒磨牙近颊根Ⅲ型根尖孔21.7%,双根管率为21.6%,三根管率为2.7%。结论:维吾尔族上颌第二恒磨牙有一定的特异性,应给予足够的重视。Objective：To study the anatomy of the maxillary second permanent molars of the Uighur people. Methods： Macro morphology of the root, the degree of abrasion, the morphology of the floor of pulp cavity, the number and type of apical foramen. Vernier was used to measure the length indexes and distance from the apical foramen to the tip of the root. Transparent technique was used to investigate the root canal systems. Results： 21.7% of mesiobuccal root had type Ⅲ apical foramen, 21.6% of mesiobuccal root had two canals, 2.7% teeth had three root canals. Conclusion： There is specificity in the second permanent molars of Uygur people, which should be paid more attention.

关 键 词：牙体解剖 透明牙标本 上颌第二磨牙 根尖孔 

分 类 号：R78[医药卫生—口腔医学]