汉族青年女性下颌神经管的三维CT定位测量  

The measurement of the mandibular canal＇ s location in the mandibular body of the young women

作　　者：王吉昌[1] 归来[2] 张智勇[2] 牛峰[2] 刘伟[2] 唐晓军[2] 

机构地区：[1]山东大学第二医院美容整形烧伤中心,济南250033 [2]中国医学科学院整形外科医院

出　　处：《中华整形外科杂志》2007年第3期212-214,共3页Chinese Journal of Plastic Surgery

基　　金：首都医学发展科研基金（2002-2016）

摘　　要：目的定位测量下颌神经管在青年女性下颌骨体内部的走行，为下颌角截骨整形术提供解剖学依据。方法随机选择汉族青年女性60例。行下颌骨螺旋CT扫描、三维重建、定点后测量下颌神经管下缘在各点距下颌骨体下缘的距离，对测量所得数据进行统计学分析。结果下颌神经管距下颌骨下缘的距离在下颌第3磨牙后缘与第1磨牙和第2双尖牙之间的对应点之间呈逐渐减小的趋势；下颌神经管距下颌骨下缘的距离在下颌第2双尖牙前后缘对应点之间与下颌骨下缘基本平行，为最小处。此后至颏孔，下颌神经管距下颌体下缘的距离又增大。结论下颌角截骨整形时注意下颌第2双尖牙前后缘之间的下颌神经管，为易损伤区。Objective To locate the mandibular canal accurately in the mandibular body of the young women and provide anatomic data for the mandibular angle plasty. Methods 60 women whose age ranged from 20 to 39 years old were randomly selected , the average was 25.32 years old. CT scanning and 3-D reconstruction were applied to their mandibles. After the pionts were determined, the distances of the pionts to inferior mandibular borders were measured. The data was analyzed by SPSS 11.5. Results The distance between the mandibular canal and the inferior mandibular border was least in the area which responsed to the second premolar. It decreases from the posterior margin of the third molar to the anterior margin of the first molar. It increases from the posterior margin to the mental hole. Conclusions The mandibular canal between the posterior and anterior margins of the second pre-molar is prone to be injuried and should be paid more attention to during mandibular angle plasty.

关 键 词：CT三维重建 下颌神经管 下颌角肥大 

分 类 号：R686[医药卫生—骨科学]