基于CBCT的下颌神经管磨牙后区分支的影像学研究

›› 2014, Vol. 34 ›› Issue (5): 343-346.

基于CBCT的下颌神经管磨牙后区分支的影像学研究

陈州莉¹,严洪海¹,邵现红²

1. 浙江省新华医院
2. 浙江省杭州市绿城口腔医院

收稿日期:2013-09-17 修回日期:2013-10-20 出版日期:2014-05-28 发布日期:2014-06-04
通讯作者: 严洪海 E-mail:yhhai01@163.com

The radiological study of mandibular canal branch in retromolar region via CBCT images

Received:2013-09-17 Revised:2013-10-20 Online:2014-05-28 Published:2014-06-04

摘要/Abstract

摘要： 目的通过口腔专用锥形束CT（CBCT）探讨下颌神经管位于磨牙后区的分支的存在概率及对临床应用的影响。方法利用CBCT 扫描机对患者进行下颌骨的横断面连续薄层扫描及多平面重建，研究下颌神经管磨牙后区分支的分布及走行情况。结果在208例患者共416侧下颌神经管中观察到66例患者存在下颌神经管磨牙后区分支，其中单侧分支53例，双侧均有分支13例，共计79例，下颌神经管磨牙后区分支率18.99%，分支均位于主干上方，分布于下颌第三磨牙远中或根方（若下颌第三磨牙缺失，分布于下颌第二磨牙远中）。结论本研究得出的下颌神经管磨牙后区的分支的存在概率及位置，可为临床上口腔颌面外科手术提供理论依据。

关键词: CBCT, 下颌神经管, 分支, 磨牙后区

Abstract: Objective To explore the probability of the existence of the mandibular canal branch in retromolar region and its influence on clinical application through cone beam computed tomography (CBCT).Methods CBCT scanner was used to perform mandibular crosssectional continuous thin layer scanning and multiplanar reconstruction on patients to study the distribution and direction of mandibular canal branches in retromolar region.Results Among the total 416 sides of mandibular canal,there existed 79 sides of mandibular canal branch in retromolar region and the rate was 18.99%.The Branches were located above the trunk,and distributed in the distal or inferior area of the mandibular third molar (if there was no mandibular third molar,then branches were distributed in the distal area of the mandibular second molar).Conclusions The probability of the existence of the branch in retromolar region and its distribution and direction obtained from this study is the theoretical basis for clinical oral and maxillofacial surgery.

Key words: CBCT, mandibular canal, branch, retromolar region

中图分类号:

R814.42

陈州莉严洪海邵现红. 基于CBCT的下颌神经管磨牙后区分支的影像学研究[J]. 口腔医学, 2014, 34(5): 343-346.

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