Population affinity and variation of sexual dimorphism in three-dimensional facial forms: comparisons between Turkish and Japanese populations.

Autor: Tanikawa C; Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, Suita, Osaka, Japan. ctanika@dent.osaka-u.ac.jp.; Center for Advanced Medical Engineering and Informatics, Osaka University, Suita, Osaka, Japan. ctanika@dent.osaka-u.ac.jp., Akcam MO; Department of Orthodontics, School of Dentistry, Ankara University, Besevler, Ankara, Turkey., Gokalp H; Department of Orthodontics, School of Dentistry, Ankara University, Besevler, Ankara, Turkey., Zere E; Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Osaka University, Suita, Osaka, Japan., Takada K; Center for Advanced Medical Engineering and Informatics, Osaka University, Suita, Osaka, Japan.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2021 Aug 17; Vol. 11 (1), pp. 16634. Date of Electronic Publication: 2021 Aug 17.
DOI: 10.1038/s41598-021-96029-9
Abstrakt: Examining the extent to which sex differences in three-dimensional (3D) facial soft tissue configurations are similar across diverse populations could suggest the source of the indirect evolutionary benefits of facial sexual dimorphism traits. To explore this idea, we selected two geographically distinct populations. Three-dimensional model faces were derived from 272 Turkish and Japanese men and women; their facial morphologies were evaluated using landmark and surface-based analyses. We found four common facial features related to sexual dimorphism. Both Turkish and Japanese females had a shorter lower face height, a flatter forehead, greater sagittal cheek protrusion in the infraorbital region but less prominence of the cheek in the parotid-masseteric region, and an antero-posteriorly smaller nose when compared with their male counterparts. The results indicated the possible phylogenetic contribution of the masticatory organ function and morphogenesis on sexual dimorphism of the human face in addition to previously reported biological and psychological characteristics, including sexual maturity, reproductive potential, mating success, general health, immune response, age, and personality.
(© 2021. The Author(s).)
Databáze: MEDLINE
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