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An Official Publication of the Indian Association of Oral and Maxillofacial Pathologists

Year : 2022  |  Volume : 26  |  Issue : 2  |  Page : 277-282
Sexual dimorphism of inferior alveolar canal location: A record- based CBCT Study in Eastern India

1 Department of Oral and Maxillofacial Pathology, SCB Govt. Dental College and Hospital, Cuttack, Odisha, India
2 Department of Oral Medicine and Radiology, Kalinga Institute of Dental Sciences, KIIT University, Bhubaneshwar, Odisha, India
3 Dental Consultant, Apollo Hospitals, Bhubaneshwar, Odisha, India
4 Public Health Dentistry, SCB Govt. Dental College and Hospital, Cuttack, Odisha, India

Correspondence Address:
Rachna Rath
Assoc. Professor, Department of Oral & Maxillofacial Pathology, SCB Govt. Dental College and Hospital, Cuttack - 753 007, Odisha
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jomfp.jomfp_139_21

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Background: Sex determination from unidentified skeletal remains a daunting task in forensic odontology. The mandible is the strongest and most durable of bones available for post-mortem profiling and its morphometric characteristics have been investigated. Less explored is the location of the mandibular canal which in a few populations has shown gender dimorphism. Aim: The present cross-sectional study explores sexual dimorphism in an eastern Indian population of Odisha from an analysis of cone-beam CT system (CBCT) images for the relative position of the mandibular canal and its foramina. Method and Materials: A total of 120 CBCT images from either gender (1:1 ratio) of adult dentate individuals aged 18–60 years were analysed for the relative position of the mandibular canal. Ten measurements (8- coronal and 2- from axial slices) concerning the mandibular canal; at the level of the mandibular foramen, mandibular first molar and mental foramen were performed. Unpaired Student's t-test was employed to compare variables between the sexes at P < 0.05 level of significance. Results: The results revealed statistically significant differences (P < 0.05) between the genders in most of the variables (8/10), with higher mean values in males compared to females except in the distance between mandibular foramen and anterior border of the ramus (2.648 ± 0.67 mm in females, 2.527 ± 0.75 mm in males) and in the distance between the canal and lingual cortical plate in the region of the first molar (14.515 ± 1.33 mm in females, 14.288 ± 2.01 mm in males). Conclusion: The relative position of the mandibular canal and its associated foramina show sexual dimorphism in an adult eastern Indian population.

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Journal of Oral and Maxillofacial Pathology | Published by Wolters Kluwer - Medknow
Online since 15th Aug, 2007