The Relationship between Mandibular Dimensions and Stature in a Kerman Population in 2020

Measuring the dimensions of bones and their relationship with stature, as well as comparing these dimensions in two different sexes, is of great importance in forensic applications and anthropometric science. Due to the increase in some dimensions of the mandible per year in terms of millimeters and also the existence of gender differences in this bone, the aim of this study was to evaluate the correlation of some mandibular dimensions with human height and gender in a Kerman population.
In this cross-sectional study, 300 Kermanian natives (150 males, 150 females, aged 18 to 30) were selected using cluster random sampling method and height of these subjects were recorded. Also, bigonial distance and gonion-gnathion distance (left and right) were measured using calipers. Data were analyzed using independent t –test and linear regression. Discriminant function analysis were used to evaluate the accuracy of gender differentiation of each dimension of the mandible.
The means and standard deviations of stature, bigonial width and left and right gonion-gnathion distance in males were 178.09±6.34, 11.47±0.86, 10.27±0.91 and 10.23±0.92 cm, respectively. These values in females were 163.32±5.82, 10.16±0.91, 9.43±1.02 and 9.15±0.8 cm, respectively (for all variables p<0.001). Moreover, the correlation coefficient of stature with bigonial width and left and right gonion-gnathion distance in all persons were 0.505, 0.396 and 0.502, respectively (for all variables p<0.001). These values in males were 0.171 (p=0.037), 0.231 (p=0.005) and 0.214 (p=0.008), respectively. However, no significant correlation was observed for these values in female. Sex determine accuracy based on all parameters of mandible was 78% and this rate was estimated based on bigonial, right and left gonion-gnathion parameters alone, 74.7%, 75.3% and 67.7%, respectively.



Using the formulas obtained in this study and confirming it in studies with larger sample sizes, it may be possible to determine stature and sex more accurately than existing methods, especially in the field of forensic medicine