CAJ | 학술논문

目的：探究下颌神经管与下颌骨的位置关系，为种植及植骨手术提供理论依据。方法：收集83名中国人下颌神经管的锥形束CT扫描数据，对其双侧下颌神经管的数据进行测量分析。结果：下颌神经管到下颌骨颊侧壁的距离为（5．32±1．29）～（7．24±1．29）mm，到下颌骨舌侧壁的平均距离为（3．43±0．99）～（3．93±1．17）mm，到下颌骨下缘的平均距离为（8．81±1．90）～（10．02±2．19）mm，内径的平均值为（2．27±0．44）～（2．61±0．40）mm。男性与女性在下颌管距下颌骨颊侧壁、下颌下缘以及下颌骨内径的平均值上差异有显著性（P＜0．05）。前襻的出现率是70．9％，长度为（2．76±1．14）mm。下颌管分支的出现率为10．84％，长度为（10．72±5．29）mm。结论：中国人下颌管在下颌骨内的位置变异较大，前襻和下颌管分支在下颌骨中发生率较高，植骨及种植手术前应仔细检查，减小神经损伤的风险。
목적：탐구하합신경관여하합골적위치관계，위충식급식골수술제공이론의거。방법：수집83명중국인하합신경관적추형속CT소묘수거，대기쌍측하합신경관적수거진행측량분석。결과：하합신경관도하합골협측벽적거리위（5．32±1．29）～（7．24±1．29）mm，도하합골설측벽적평균거리위（3．43±0．99）～（3．93±1．17）mm，도하합골하연적평균거리위（8．81±1．90）～（10．02±2．19）mm，내경적평균치위（2．27±0．44）～（2．61±0．40）mm。남성여녀성재하합관거하합골협측벽、하합하연이급하합골내경적평균치상차이유현저성（P＜0．05）。전반적출현솔시70．9％，장도위（2．76±1．14）mm。하합관분지적출현솔위10．84％，장도위（10．72±5．29）mm。결론：중국인하합관재하합골내적위치변이교대，전반화하합관분지재하합골중발생솔교고，식골급충식수술전응자세검사，감소신경손상적풍험。
Objective To analyse the location of the mandibular canal,providing the theoretical basis for implanting and bone grafting. Methods Mandibular data of 83 Chinese people obtained by cone-beam computed tomography examination were collected. Results The distance from the mandibular canal to mandibular buccal wall was (5.32 ± 1.29)~(7.24 ± 1.29) mm. And the average distance from mandibular canal to mandibular lingual wall or inferior margin were respectively (3.43 ± .99) ~ (3.93 ± 1.17) mm and (8.81 ± 1.90) ~ (10.02 ± 2.19) mm. Significant differences between males and females were found in groups. The anterior loop was observed in 70.9%of all sides. The accessory mental foramen was observed in 10.84% of all sides. Conclusion For the remarkable mutation of the location of the mandibular canal in Chinese people, clinicians should be careful before implant or bone surgery procedures to minimize the risk of inferior alveolar nerve injury.