Introduction: Identity is the set of physical characteristics, functional or psychic, normal or pathological that defines an individual. Forensic radiology, as do all other academic and scientific disciplines, rests on the unsteady four-legged stool of service, education, research and administration. The Routine radiographic examination by orthopantomogram of patient’s mandible is necessary and justifiable for treatment. In this study sample of orthopantamographs was surveyed to establish the frequency of radiological characteristics and the trend of ridge resorption in relation to mental foramen in indentifying the age and sex of an individual. Aims and Objective: To identify the age and sex of an individual by measuring the distance between basal bone to mental foramen to alveolar crest using mental foramen as a land mark in orthopantomogram. Materials and methods; A cross sectional study was conducted on a total of 102 panoramic radiographs with age group 50-70 years and was divided into four groups on the basis of the chronological age. Results: For both the sides, a significant difference in height of body of mandible between two genders was observed in age group 50-55 years (p0.05). Conclusion: The height of the mandible and lower border to the superior margin of the mental foramen exhibits sexual dimorphism and can be used as an additional radiographic method to determine the gender from skeletal remains.