[四川省成年人群下颌骨双管的锥形束计算机断层扫描评估]
[Cone beam computed tomography evaluation of bifid mandibular canals in the adult population in Sichuan Province].
作者信息
Li Ye, Yafei Chen, Jun Pei, Yuanyuan Liu, Shuqun Qi, Jian Pan
机构信息
State Key Laboratory of Oral Diseases, Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
State Key Laboratory of Oral Diseases, Dept. of Radiology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
出版信息
Hua Xi Kou Qiang Yi Xue Za Zhi. 2017 Feb 1;35(1):82-88. doi: 10.7518/hxkq.2017.01.013.
OBJECTIVE
To investigate the incidence of bifid mandibular canals (BMC), and analyze the types, courses, and anatomic features of the variant canals in the adult population in Sichuan Province.
METHODS
Five hundred patients (1 000 hemimandibles) underwent cone beam computed tomography (CBCT) were included in this study. The incidence, bifurcate types and courses of the BMC were evaluated.
RESULTS
The incidence of BMC was 13.8% (69/500) in the study, 9.2% in terms of total hemimandibles. The most frequently type was retromolar canals, followed by the dental and buccolingual type, meanwhile the lowest was the forward type. The mean diameter of the accessory canals was 0.90 mm and the mean length was 9.39 mm.
CONCLUSIONS: CBCT used in this study has shown that the incidence of BMC assessed by CBCT was significantly higher than panoramic radiography. Furthermore, CBCT can depict the position, course, size and the branches of the mandibular canals. .
目的
调查下颌双管（BMC）的发生率，并分析四川省成年人群中变异管的类型、走行及解剖特征。
方法
本研究纳入500例接受锥形束计算机断层扫描（CBCT）的患者（1000侧半下颌骨）。评估BMC的发生率、分叉类型及走行。
结果
本研究中BMC的发生率为13.8%（69/500），占半下颌骨总数的9.2%。最常见的类型是磨牙后管，其次是牙型和颊舌型，最少见的是向前型。副管的平均直径为0.90mm，平均长度为9.39mm。
结论
本研究中使用的CBCT显示，CBCT评估的BMC发生率显著高于全景X线片。此外，CBCT能够描绘下颌管的位置、走行、大小及分支情况。
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