• SAWSAN T. YOUNIS Dept. Of Oral and maxillofacial surgery,College of Dentistry, University of Duhok, Kurdistan Region-Iraq
  • EVAN N. YOUHANNA Dept. Of Oral and maxillofacial surgery,College of Dentistry, University of Duhok, Kurdistan Region-Iraq
  • OMED I. SHEHAB Dept. Of Oral and maxillofacial surgery,College of Dentistry, University of Duhok, Kurdistan Region-Iraq
Keywords: CBCT, accessory IAC, mandible


Backgrounds and Objectives: The mandibular canal is an important structure that should be noted before any surgery in the posterior region of the mandible. The presence of accessory canal should be excluded to avoid unwanted clinical complications. The aim of this study is to study the frequency of accessory inferior alveolar canal.

Methods: CBCT of 59 patients (ordered for implant and impacted teeth surgical planning), (118 right and left mandible views) were available as soft copies in the archives databases in the Denta private center in Erbil City, Iraq, between October 2019 and July 2021. Both male and female included in this study with age range from (19-45). All the CBCT scans were processed and observed with New Tom Giano CBCT 3D imaging (QR Sr-via silvestrini, 20- 37135 verona -Italy). The cone beam CT images were evaluated and the region of the inferior alveolar canal was examined for the presence or absence of the accessory canal.

Results: The frequency of accessory mandibular canal was observed in 12 (10.2%) patients of the total sample, 03 (6%) males and 09 (13.2%) females. No significant difference between male and female as (P = 0.199).

Conclusion: The presence of accessory canals should be excluded to avoid unwanted complications like bleedings or unexpected pain during implant procedures


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