Sex dimorphism according to the nasozygomatic triangle

Sex is one of the first features to be diagnosed in human identification, composing, with age, ancestry and stature, so called “big four”. Aim: The present study aimed metrically analyze sexual dimorphism skulls known age sex from Rio Grande do Sul – Brazil. Methods: This was a crosssectional metrical analysis, which used sample comprised 209 (106 male 103 female) older than 22 years old at time death, undamaged without signs trauma or abnormalities. point nasion most superior points on zygomaticotemporal sutures each side were connected forming triangle. area calculated using Heron’s formula, results submitted for statistical analysis. Results: All measurements showed significant values dimorphism. Through triangle, it possible determine an accuracy 83.97% males 83.50% females. Conclusion: simple method requires only caliper, still can reliable forensic identification. It must diffused tested other samples, as good inexpensive tool experts day-to-day practice.