基于CBCT对成人下颌管分支的影像学研究

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中图分类号：R78 文献标志码：ADOI：10.7652/jdyxb202503017

Imaging of mandibular canal branches in adults based on CBCT

XU Na1，2，3 ， JING Wenfan1，2，4， WANG Chunyan1，2，3 ， GAO Zhenyan 1，2，3 ， LI Li1，2，3， ZHANG Bin1，2，3 ， SUN Junyi1，2，3 （1.Key laboratory of Shaanxi Province for Craniofacial Precision Medicine Research;

2. Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases;

3.Department of Special Clinic； 4. Department of Radiology，College of Stomatology， Xi'an Jiaotong Univerity，Xi'an 7loo04，China）

ABSTRACT：ObjectiveTo investigate the types and incidence of bifid mandibular canal using cone beam computed tomography（CBCT） technology so as to enhance our understanding of these anatomical features and help reduce complications caused by trauma to the neurovascular bundle within them.MethodsCBCT data of 803 patients from Colege of Stomatology，Xi'an Jiaotong University，were collected，and the types and incidence of bifid mandibular canal were statistically analyzed according to the Naitoh clasification method.ResultsThe incidence of bifid mandibular canal was 54.05% ，with the occurrence rates for the retromolar canal and forward canal being 26.40% and 32.75% ，respectively. Conclusion To ensure the safety of treatments，it is recommended that oral clinical practitioners use CBCT to obtain thre-dimensional images for precise asessment of bifid mandibular canal，thereby avoiding potential complications during the perioperative period.

KEY WORDS：cone beam computed tomography（CBCT）；bifid mandibular canal；retromolar canal； forwardcanal;anatomicalvariation

下颌管是位于下颌骨骨松质间之骨密质管道，与下颌牙齿关系最为密切。（剩余11650字）