Introduction: Sex is a biological quality that distinguishes male and females.Determination of sex is the prime aspect of forensic investigations followed by age and identification of ethnic population. Aim and objectives: The aim of this study is to evaluate the mandibular angle by direct digital orthopantamography and its significance in gender determination. Materials & Methods: The sample consist of 100 digital orthopantamography images, mandibular angle was measured on the image for each case using inbuilt dimaxis software and statistical analysis was done by using T test. Results: The outcome of our study showed that there was a significant difference in the mandibular angle between genders with the angle being more obtuse angle in female when compared to male. So our study infersthat mandibular angle can be used as a reliable parameter for sex identification.