锥形束CT对83例中国人下颌神经管的位置测量研究  

Position of mandibular canal determined by Cone-beam computed tomography examination in 83 Chinese people

作　　者：王朝[1] 徐淑兰[1] 周磊[1] 姚钟雄[1] 杨烁[1] 钟丹霞[1] 

机构地区：[1]南方医科大学附属口腔医院广东省口腔医院种植中心,广州市510280

出　　处：《实用医学杂志》2014年第5期761-763,共3页The Journal of Practical Medicine

摘　　要：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。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.

关 键 词：下颌神经 锥形束CT 下颌神经管 前襻 下颌管分支 

分 类 号：R783.6[医药卫生—口腔医学]