Indian Journal of Forensic and Community Medicine
  • Year: 2015
  • Volume: 2
  • Issue: 3

A Study of Sex Determination from Human Mandible Using Various Morphometrical Parameters

  • Author:
  • Anupam Datta1, Santhosh Chandrappa Siddappa2,, Viswanathan Karibasappa Gowda3, Siddesh Revapla Channabasappa4, Satish Babu Banagere Shivalingappa5, Srijith1, Debaleena Dey6
  • Total Page Count: 9
  • Page Number: 158 to 166

1Post Graduate Student, Department of Forensic Medicine and Toxicology, J J M Medical College, Davangere, Karnataka, India, 577004

2Professor, Department of Forensic Medicine and Toxicology, J J M Medical College, Davangere, Karnataka, India, 577004

3Professor and HOD, Department of Forensic Medicine and Toxicology, J J M Medical College, Davangere, Karnataka, India, 577004

4Senior Resident, Department of Forensic Medicine and Toxicology, Andaman & Nicobar Islands Institute of Medical Sciences, Port Blair, India, 744104. Contact No-07204911185

5Associate Professor, Department of Forensic Medicine and Toxicology, J J M Medical College, Davangere, Karnataka, India, 577004

6Post Graduate Student, Department of Otolaryngology, Tripura Medical College and Dr. BRAM Teaching Hospital, Hapania, Agartala, Tripura, India, 799014

*Corresponding Author: E-mail: drsan_99@rediffmail.com

Online published on 18 December, 2015.

Abstract

Examination of bones is important for identification of deceased and determination of sex. The mandible is the largest and hardest facial bone, that commonly resist post mortem damage and forms an important source of information about sexual dimorphism.

The purpose of the study is to analyze sexual dimorphism in the mandibles of South Indian population.

A random collection of 50 adult, dry, complete, undamaged human mandibles of South Indian population were subjected to metrical parameters like Gonial angle, Bigonial width, Height of ramus, Bicondylar breadth, Mandibular length, Length of lower jaw, Mandibular index, Body thickness, Coronoid height, Bimental breadth, Symphyseal height and Body height using Mandibulometer and Digital Vernier caliper.

The data's were expressed as Mean ± SD and then analyzed by unpaired t-test by using IBM SPSS Statistics 21. Discriminating point and limiting points were also calculated.

After obtaining all the measurements, unpaired ‘t-test’ was performed. The Gonial angle, Bigonial width, Height of ramus, Bicondylar breadth, Mandibular length, Length of lower jaw, Body thickness, Coronoid height, Bimental breadth, Symphyseal height and Body height showed statistically significant gender difference.

The present study highlighted that the gender of the mandible can be determined using different metrical parameters as an additional tool to establish the identity of a person.

Keywords

Mandible, Metrical parameters, Sexual dimorphism, South Indian population