Evaluation of Inferior Alveolar Canal Position in Cross Sectional Cone Beam Computed Tomography Images

Document Type : Original Article


1 Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

2 Department of Vital Statistics, Faculty of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.


Background and Objective: Cone beam computed tomography (CBCT) has made considerable improvements  in maxillofacial  imaging. Estimating canal location is one of its applications. The  aim  of  this  study  is  to  evaluate  whether differences in patient gender or age  are  predictive  of  differences in  the  relative location  of  the inferior  alveolar  canal.
Subjects and Methods: Existing CBCT images, acquired  by  the  Promax  3D (Planmeca Finland), taken from the maxillofacial  region  from  120  dentate  patients (46.7% male,53.3% female , mean age 42.1%)( who  visited  a  private  clinic  in  Ahvaz  were  selected and processed by Romexis viewer software. Sixteen  measurements (in mm)  were  taken  at  the  level  of  the  IAN  and  mesial  and  distal  root  apices. Anatomic measurements were made by 2 observers. Data were analyzed by  Pearson  correlation  and  t-test.
Results: The  distance  from  the  most  lingual  aspect  of  the  root  to the lingual cortical plate 3 mm coronal to the apex, were  less  in  females  in  mesial and  distal  roots  of  second  molar ( P<0.05). None of the other variables were associated with sex or age.
Conclusions: Collectively, these data indicate that relative positions of IAN changes are not dependent on gender or age. Application of CBCT imaging in presurgical planning is recommended.


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