Sexual dimorphism of viscerocranium-A logistic model

Lucas del Vigna Peixoto, Stefany de Lima Gomes, Ana Amelia Barbieri, Francisco Carlos Groppo, Cristhiane Martins Schmidt, Viviane Ulbricht, Carlos Sassi, Joao Cesar Bedran de Castro, Rachel Tinoco, Eduardo Daruge Junior, Luiz Francesquini Junior

Abstract


Introduction: Sex estimates are generally based on the evaluation of qualitative and quantitative aspects of anatomic structures, however, the latter has better reproducibility and reliability. Objective: Aiming to evaluate the viscerocranium as a tool for sexual prediction and verify the possibility of creation of a logistic regression model for sexual prediction. Materials and Methods: 167 craniums - 100 male and 67 female between 22 and 85 years old from a Brazilian university´s Biobank - were evaluated. Results: It was observed that of the measures carried out were presented as sexually dimorphic, except for the measures of the right frontozygomatic point – right zygion; left frontozygomatic point – left zygion. Besides, it was possible to create a logistic regression model Sex = [logits/Sex = -24.5 + (0.20 * Nasion - Naso spine) + (0.18 * Right zygion - Naso spine)]. Conclusion: It was concluded that the measures of the viscerocranium present themselves as a factor of sexual dimorphism and the quantitative method developed was 81.4% accurate.


Keywords


forensic dentistry; sex determination by skeleton; forensic anthropology; facial bones; logistic models

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DOI: https://doi.org/10.23954/osj.v6i2.2757

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