›› 2018, Vol. 9 ›› Issue (3): 148-151.

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The study on the structure, position and bifid of the mandibular canal

  

  1. 1. Jiangsu Provincial Key Laboratory of oral disease research, Nanjing Medical University
    2. Institute of Stomatology, School of Stomatology, Nanjing Medical University.
    3. Institute of Stomatology,Nanjing Medical University
    4. 缺
  • Received:2018-05-09 Revised:2018-08-23 Online:2018-09-25 Published:2018-09-29

Abstract: Abstract: Objective To study the structure, position and bifid of the mandibular canal by CBCT image. Methods CBCT data of 160 people were collected, and mandibular canal position in mandible, bifid from third molar to mental foramen, and three dimensional relation with the posterior teeth were analyzed. Results The average diameter of mandibular canal was 2.98mm from third molar to second premolar. Anterior loop appeared in 9.38% mandibular canal, and the average depth is 12.86mm. Mandibular canal contacted with 7.5% third molars, and the rate is higher when canal located lingually to the third molar. 28.44% mandibular canals have bifids. Conclusion CBCT image can help to observe the the structure, position and bifid of the mandibular canal, and avoid or reduce the nerve damage in treatment.