Assessment of sexual dimorphism of teeth by dental indices

Shakthi Dorai, N. Srikant, Karen Boaz, Amitha J. Lewis, Shweta Yellapurkar, Nidhin Philip Jose

Research output: Contribution to journalArticle

Abstract

Background: Odontometry is an important parameter to demonstrate sexual dimorphism. Aim and Objective: The study aimed to assess the efficiency of dental indices in identifying sexual dimorphism in permanent human dentition. Material and Methods: Dental casts (n=101; 49 male and 52 female) were retrieved from the archives. The mesio-distal (MD) and bucco-lingual (BL) dimensions of the permanent teeth (from central incisor to second molar) were measured using digital Vernier Caliper. Crown area, crown module, crown index, incisor and canine index were calculated for each individual. Results and Conclusions: Sexual dimorphism in teeth are attributed to hormonal influence and Y chromosome. The BL dimension is less influenced by attrition compared to the MD dimension making it a better identifier. Discriminant function analysis showed MD dimension of mandibular left canine and crown index of right maxillary premolar as the most reliable predictors. Binary logistic regression analysis showed, the MD dimension of the lower left canine was the single best predictor of gender.

Original languageEnglish
Pages (from-to)67-72
Number of pages6
JournalJournal of Punjab Academy of Forensic Medicine and Toxicology
Volume19
Issue number2
DOIs
Publication statusPublished - 01-07-2019

All Science Journal Classification (ASJC) codes

  • Pathology and Forensic Medicine
  • Toxicology

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