[锥形束计算机断层扫描分析下颌骨双管型根管]
[Analysis of bifid mandibular canal via cone beam computed tomography].
作者信息
Yi Guo, Qiaohong Zhang, Xiaoqian Han
出版信息
Hua Xi Kou Qiang Yi Xue Za Zhi. 2015 Apr;33(2):158-60. doi: 10.7518/hxkq.2015.02.010.
OBJECTIVE
The purpose of this study is to analyze the incidence and the type of the bifid mandibular canal (BMC) by using cone beam computed tomography (CBCT) images.
METHODS
A total of 216 patients (104 female and 112 male) who underwent CBCT were included in this study. The CBCT images were evaluated for the incidence and the type of the BMC.
RESULTS
BMC was observed in 39 (18.06%) of 216 patients and 50 (11.57%) of 432 sides, female 18 (17.31 %) and male 21 (18.75%). BMC were classified into four types: type I 17 sides (3.94%), type II 11 sides (2.55%), type III 20 sides (4.63%), and type IV 2 sides (0.46%).
CONCLUSION
BMC is detected at a high rate by using CBCT. When doctors perform surgical procedures in the mandible, they should pay attention to the anatomical variations of BMC of the mandibular canals.
目的
本研究旨在通过使用锥形束计算机断层扫描（CBCT）图像分析下颌管双管型（BMC）的发生率及类型。
方法
本研究纳入了216例行CBCT检查的患者（104例女性，112例男性）。对CBCT图像进行BMC发生率及类型的评估。
结果
216例患者中有39例（18.06%）观察到BMC，432侧中有50侧（11.57%）观察到BMC，女性18例（17.31%），男性21例（18.75%）。BMC分为四种类型：I型17侧（3.94%），II型11侧（2.55%），III型20侧（4.63%），IV型2侧（0.46%）。
结论
使用CBCT能较高比率地检测出BMC。医生在下颌骨进行手术操作时，应注意下颌管BMC的解剖变异。
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