Determination of Sex and Estimation of Age by Mandibular Basal Bone Height

Abstract

Aims and Objectives: To assess the age and sex determination through mandibular basal bone height
Materials and Methods: The study consists of 120 OPG samples, (60 males and 60 females) in the age
group of 30 to 70 years, hereby the mandibular basal bone height measured as D1 and D2 on OPG’s using
planmeca romexis software. The distance measured between the lower border of mental foramen to the
lower border of the mandible termed as D1. The distance between the lowest point of mandibular canal to
the lower border of the mandible termed as D2. All these measurements were further subjected to statistical
analysis like independent t-test, correlation and regression analysis to estimate age and to compare the
differentiation between males and females.
Results: Overall the result shows the moderate level of significance, on multiple comparisons between age
groups and sex among the population, it was observed that statistically significant in male with relation
to D1 among 61yrs to 70yrs though other age groups show significant with less confidence interval.
Female observations failed to show similar results neither with D1 nor with D2. Regression formula for age
estimation and logistic regression for sex determination have been derived.
Conclusions: The present study highlighted that the male gender of the mandible can be determined by
using D1 value as it gives significance, thus it can be used as an additional tool to establish the identity of
a gender