口腔颌面外科杂志2013，Vol.23Issue(3)：186-191,6.DOI:10.3969/j.issn.1005-4979.2013.03.007
锥形束CT中下颌第三磨牙与下颌管的关系及其与阻生类型的相关性分析
The Accuracy of CBCT in Locating the Mandibular Canal and Impacted Mandibular Third Molar
郭斐 1叶丽娟 1康非吾 1徐秀慧 1廖建兴 1侯光宇 1张雪明1
作者信息
- 1. 同济大学附属口腔医院口腔颌面外科,口腔生物医学及转化医学实验室,上海200072
- 折叠
摘要
Abstract
Objective:To evaluate the accuracy and reliability of CBCT examination in image analysis of the superimposition of mandibular canal (MC) and impacted mandibular third molar (IMTM) by panoramic radiography.Methods:184 MC and IMTM superimposed images (146 patients) from panoramic radiography were reexamined by CBCT.Correlations of their relationship and type of tooth impaction,gender,visibility of the white line of bone of the MC by panoramic radiography were analyzed.Patients with IMTM in contact with the MC,the length and width of the connection were measured,correlations of the length and width and the relative location of tooth root and MC were analyzed.Results:In CBCT image,the impacted mandibular third molar contact with the mandibular canal is related to position depth of the tooth root (P=0.002) and gender (P=0.020),and also related to the MC white line was visible in panoramic radiograph (P=0.001).The length and width of the connection could be larger when the MC was in contact with the lingual side of tooth root.Conclusions:CBCT may able to generate images with sub-millimeter isotropic resolution,it is more sensitive and accurate for detecting dentoalveolar structures and provide more accurate reference for clinical risk assessment.关键词
锥形束CT/曲面断层片/下颌阻生第三磨牙/下颌神经管Key words
cone beam computed tomography/ orthopantomography/ impacted mandibular third molar/ mandibular canal分类
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郭斐,叶丽娟,康非吾,徐秀慧,廖建兴,侯光宇,张雪明..锥形束CT中下颌第三磨牙与下颌管的关系及其与阻生类型的相关性分析[J].口腔颌面外科杂志,2013,23(3):186-191,6.
