IJCRRI Journ Cur Res ReInternational Journal of Current Research and ReviewI Journ Cur Res Re2231-21960975-5241Radiance Research Academy2007HealthcareSEX DETERMINATION BY MASTOID PROCESS IN SOUTH INDIAN POPULATION SukumarSureshYadavSushilMVimal KumarBManju H29092012)133137This article is copyright of Popeye Publishing, 20092009This is an open-access article distributed under the terms of the Creative Commons Attribution (CC BY 4.0) Licence. You may share and adapt the material, but must give appropriate credit to the source, provide a link to the licence, and indicate if changes were made.

Objective: The purpose of this study was to evaluate the significance for sex determination of the measurement of the area formed by projection of 3 craniometric points related to the mastoid process: the porion, asterion, and mastoidale points. Method: Fifty skulls, 25 males and 25 females, were analysed. The three craniometric points were located and marked on both side of the skull and the measurement was done by digital calliper (0.01mm).The area of mastoid triangle was calculated by means of the Heron__ampersandsignrsquo;s formula. Total area calculated was done by adding the areas (mm2) obtained on each side. Result:From this study the areas of the mastoid triangles in male skulls 1611.747 mm2 __ampersandsigngt; areas of the mastoid triangles in female skulls1 241.13 mm2. Minimum area of mastoid in male Right Area (mm2) is 702.36 and left area is 680.16 with Total Area (mm2) 1411.08. Maximum area of mastoid, in male Right Area (mm2) is 991.84and left area is 1008.25with Total Area (mm2) 2000.09. . Minimum area of mastoids, in female Right Area (mm2) is 506.56and left area is 468.81with Total Area (mm2) 982.58. Maxium aread of mastoiod in female Right Area (mm2) is 857.35left area is 848.16with Total Area (mm2) 1705.51