The Variation of Position of Mental Foramen in Relation to Side and Sex in Northern Region of Bangladesh

Background: The mental foramen is an important anatomical landmark during surgical intervention and anaesthetic nerve block procedure involving inferior alveolar nerve and mental nerve. Objectives: The aim of this study was to determine the variation of position of mental foramen in relation to side and sex. Methods: This cross-sectional type of descriptive study was conducted over a period of 1 year from January 2021 to December 2021 in the Department of Anatomy, Rajshahi Medical College, Rajshahi. This study was performed on 250 dry adult human mandibles (148 were male and 102 were female mandibles) which were collected from the students of Department of Anatomy, Rajshahi Medical College, Rajshahi as well as other Medical Colleges after fulfilling the inclusion criteria. Data were collected purposively with the help of a semi-structured questionnaire. All the measurements were performed using digital sliding Vernier calipers and the data were analyzed via SPSS software, version 24.0. Statistical significance was evaluated as appropriate probability level p < 0> 0.05) but distance from posterior border of ramus of mandible to lateral margin and vertical diameter of mental foramen were statistically significant (p < 0> 0.05). Conclusion: This study might help us in establishing a reference data-base in our country for the Anatomists in general, Dental Surgeons and Maxillofacial Surgeons.