Aim: The aim of our study was to measure the frontal sinus morphology that could aid us in gender determination and also to assess the difference in measurements between the right and left frontal sinus. Materials and methods: A retrospective study was done using 100cone beam computed tomography (CBCT) images (50 males and 50 females) matched with age and gender with full field of view (FOV). The examinations were carried out using Promax 3DMid (Planmeca Oy., Helsinki, Finland) CBCT unit. The frontal sinus was assessed in coronal, sagittal and axial planes, and the maximum measurements in each section were recorded. The results to compare the right and left frontal sinus were analysed using paired-tests and independent Student's t-test was used to compare the difference in measurements of frontal sinus between the males and females Results: We found that the left side of the frontal sinus was bigger than the right side, and while comparing between the genders, it was found that the measurements were greater in males. Statistically significant results were obtained on comparing between the sides and gender. Conclusion: As mentioned in previous studies, frontal sinus measurements are significantly higher in males compared with females which can, therefore, be used in gender identification in cases of mass disasters. Clinical significance: Frontal sinus measurements can be used as an adjunct in gender identification in mass disasters and with advances in technology. Cone beam computed tomography, in addition to providing accurate measurements, has overcome all the disadvantages with two -dimensional imaging.