the effect of ameloblastoma and keratocystic odontogenic tumour on the displacement pattern of inferior alveolar canal in cbct imaging review

background and aim: the inferior alveolar canal must be constantly examined as an important anatomical landmark in the study of lower jaw, particularly posterior body and mandibular ramus sites, in dental and surgical procedures. in the present study, the effect of two pathological lesions, ameloblastomas and keratocystic odontogenic tumour, on canal displacement were investigated. materials and methods: in total, 26 patients with lesions referred to tabriz imam reza teaching hospital were studied in two equal groups (13 patients with a histopathologic ameloblastoma diagnosis and 13 with a histopathologic odontogenic keratocyst diagnosis) after confirming the initial incisional biopsy and pathologic report, the cbct of the lesions larger than 3 cm mesiodistaly and those involving the posterior body and ramus of mandible, entered the study. two maxillofacial surgeons with an oral and maxillofacial radiologist examined three points of cbct imaging to determine the position of the mandibular canal to the lesions from the buccal and lingual aspects. results: the results of statistical analysis showed that in ameloblastoma, inferior alveolar canal has been displaced buccally in ramus region (84.6%) but in distally region, displacement was less buccally (41.6%). in kot it has been no significant difference in displacement of inferior alveolar canal between proximal and distal region of the lesion observed. finally chi-squared test showed no statistically significant difference between two lesions. conclusions: the results of the statistical analysis showed that there was no relationship between these types of lesions and the inferior alveolar canal displacement.