The Journal of Practical Medicine 2014;(5):761-763

doi:10.3969/j.issn.1006-5725.2014.05.027

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

Zhao WANG ; Shulan XU ; Lei ZHOU ; Zhongxiong YAO ; Shuo YANG ; Danxia ZHONG

Keywords

Mandibular nerve; Cone-beam computed tomography; Mandibular canal; Anterior loop; Accessory mental foramen

Country

China

Language

Chinese

Abstract

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.