Use of Diagonal Teeth Measurements in Predicting Gender in a Turkish Population^*

Abstract

Mesiodistal and buccolingual measurements, commonly used as a means of sex determination from teeth, can sometimes cause difficulties. The aim of this study is to test whether diagonal measurements can make it possible to take more accurate measurements. The results of diagonal measurements of dental casts taken from 30 males and 30 females have been evaluated by discriminant function statistics. Intra- and interobserver error tests did not indicate any statistically significant differences between the findings of two observers. Seven of the 14 measurements on the maxilla and 10 of the 14 measurements on the mandible have been found to be significantly greater in males. According to the results of the stepwise discriminant function statistics, the most contributory measurements to the function were upper first incisor mesiobuccal-distolingual (MBDL) and distobuccal-mesiolingual, lower second incisor MBDL, and lower canine MBDL. The highest reliability was obtained in MBDL measurements. It was realized that diagonal measurements of teeth, especially of canines, revealed clear dimorphic differences. Classification accuracy was found to be 83.3% for total sample, 78.3 for upper jaw, and 85.0% for the lower jaw. Accuracy rate was higher in the lower teeth. Commonly seen orthodontic anomalies, such as tooth rotations, crowding, attritions, deep dentin-enamel junction defects, and certain types of fillings, could make it difficult to correctly take width measurements or could cause other mistakes to occur. This explains the reason why this research has been considered to be of some use in diagonal measurements, which is an accurate method, particularly when employed for the front teeth.

Geomorphometrics of Tooth Size and Arch Dimension Analysis by Conventional Digital Caliper and Digital Stereomicroscope to Establish Standard Norms for the Pakistani Population

“…Diagonal diameters (Fig. 2c) The measurements were taken with morphometric points through the largest distance between the mesiobuccal to distolingual (MBDL) and distobuccal to the mesiolingual (DBML) points of the crown 13) .…”

“…Teeth in relation to sexual dimorphism have been of prodigious importance to anthropologists and forensic odontologists as well as the focus of many studies for gender assessment 8,9) . Conventional caliper was used by researchers to investigate tooth dimension, to identify the sexual disparities through mesiodistal 4,10,11,12) , buccolingual 9,10,11,12) and diagonal crown 13) diameters of teeth. Geomorphometrics is the quantitative approach that refer to the morphology of an entity depends on landmarks.…”

A New Method to Measure and Assess Tooth Size and Tooth Size Discrepancy Via Circumferential Measurements using Stereomicroscope

“…The most popular parameter for assessing the tooth size and To overcome these problems, investigator measured the tooth size via mesiodistal 1,1 2) , buccolingual 34) and diagonal crown diameters 35) . Current study investigated the tooth size via CFT to assess the tooth size via alternate method.…”

Crown Dimension in relation to Arch Perimeter, Arch Length and Arch Width in Ideal Occlusion: A Digital Model Study

“…2). Diagonal crown measurements were taken with morphometric points through the largest distance between the mesiobuccal to distolingual (MBDL) and distobuccal to the mesiolingual (DBML) points of the crown 14) (Fig. 3).…”

“…Variations in tooth size and tooth size ratio have been connected with diverse ethnic foundations and occlusion status [6][7][8][9] . Researchers investigate tooth dimension, to identify the sexual disparities through mesiodistal [10][11][12][13] , buccolingual 12,13) and diagonal crown 14) diameters of teeth. The mesiodistal tooth size were also investigated in relation to various malocclusion groups 10) , various arch groups 3) sex prediction models 12,15,16) tooth size discrepancy 10) and tooth size prediction 17) around the globe on different population.…”