Sex estimation is one of the essential parameters for the human Identication in forensic analysis.
Resilience of palatal structures and mandible to traumatic and natural forces is useful in several forensic
situations. Radiography plays a vital role in forensic dentistry to uncover hidden facts which cannot be seen by means of
physical examination. The occlusal radiograph gives a bird's eye view of entire maxillary and mandibular arches, and useful in
evaluation of dental arches. To assess the usefulness of linear measurements of maxillary and mandi Aims: bular dental
arches on occlusal radiographs for gender determination. The study constituted of 60 subjects Settings And Design: (30 males
and 30 females) with age range of 21-30 years. 120 cross sectional maxillary and mandibular occlusal radiographs were taken
and traced. Maxillary and mandibular dental arch linear measurements on occlusal radiographs were made related to Inter
canine, Inter 1st premolar, Inter 2nd premolar, Inter 1st molar, and Inter 2nd molar widths. Statistical Analysis Used:
Independent Student t Test and Discriminant function analysis. The Inter 2nd molar width Results: in both dental arches was
the best predictor for gender determination. The Predicted gender model showed a sensitivity of 60% & 70% and specicity of
70% & 60% in the maxillary and mandibular arches respectively with overall accuracy of 65% in both the arches. Conclusion:
The present study shows a signicant sexual dimorphism in linear measurements of maxillary and mandibular dental arches
and can be very useful for gender determination in forensic science