West China Journal of Stomatology ›› 2017, Vol. 35 ›› Issue (1): 82-88.doi: 10.7518/hxkq.2017.01.013

• Orginal Article • Previous Articles     Next Articles

Cone beam computed tomography evaluation of bifid mandibular canals in the adult population in Sichuan Province

Li Ye1(), Yafei Chen1, Jun Pei1, Yuanyuan Liu2, Shuqun Qi1, Jian Pan1()   

  1. 1. State Key Laboratory of Oral Diseases, Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
    2. State Key Laboratory of Oral Diseases, Dept. of Radiology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2016-02-22 Revised:2016-11-12 Online:2017-02-01 Published:2017-02-01
  • Supported by:
    Health and Family Planning Commission of Sichuan Province Research Fund (16PJ267);Experiment Teaching Reform Project of Sichuan University(2016).

Abstract:

Objective To investigate the incidence of bifid mandibular canals (BMC), and analyze the types, courses, and anatomic features of the variant canals in the adult population in Sichuan Province. Methods Five hundred patients (1 000 hemimandibles) underwent cone beam computed tomography (CBCT) were included in this study. The incidence, bifurcate types and courses of the BMC were evaluated. Results The incidence of BMC was 13.8% (69/500) in the study, 9.2% in terms of total hemimandibles. The most frequently type was retromolar canals, followed by the dental and buccolingual type, meanwhile the lowest was the forward type. The mean diameter of the accessory canals was 0.90 mm and the mean length was 9.39 mm. Conclusion CBCT used in this study has shown that the incidence of BMC assessed by CBCT was significantly higher than panoramic radiography. Furthermore, CBCT can depict the position, course, size and the branches of the mandi-bular canals.

Key words: mandibular canal, cone beam computed tomography, bifurcate, incidence

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