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International Journal of Morphology

On-line version ISSN 0717-9502

Abstract

QAMAR, Zeeshan et al. Can Human Maxillary Premolars Discriminate Between Sexes in South Asian Populations?. Int. J. Morphol. [online]. 2020, vol.38, n.3, pp.622-626. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022020000300622.

The studies have illustrated odontometric analysis can be used to determine the sexual dimorphism effect on size of the teeth in various populations. The main aim of the study was to identify the inter-cuspal-, bucco-lingual -dimensions and weight of human upper-arch pre-molars in males and females of different South Asian populations. These metrics can distinguish sex which can have application in mass disasters, archaeology of mingled human remains and the in unidentified or several ancestry. The sample size consisted of 60 orthodontically extracted maxillary pre-molars from Pakistani and Saudi Arabian populations respectively. For male and female groups of each population fifteen first and second maxillary premolars were collected respectively, stored in PBS solution. The weight of the individual teeth was recorded. Later, digitally pictures were captured parallel to the occlusal surface to measure maximal bucco-lingual and inter-cuspal dimensions using Image-J software. The dimensions and weights were compared using Students’ t-test between males and females respective Pakistani and Saudi Arabian first (P1) and second (P2) maxillary pre-molars. The dimensions for male P1 and P2 were statistically significantly larger than that for females in both populations. Furthermore, wet-weight of pre-molars in males is significantly greater than females in both populations. The findings demonstrate maxillary pre-molars can discriminate between the sexes in various populations.

Keywords : Morphology; Premolar; Sex; Discrimination.

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