Avaliação do dimorfismo sexual em mensurações mandibulares.

Abstract

Evaluation of sexual dimorphism in mandibular measurements. Sexual dimorphism consists of one of the parts of the identification quartet that defines the biological profile of an individual during human identification and is based on the differentiation of sex through a given parameter. The mandible is the skull bone that has the greatest ability to show differences between the sexes. The aim of this study was to verify the possibility of sexual dimorphism from mandibular measurements using digital panoramic radiographs. Methodology: The study was carried out using a sample of 142 panoramic radiographs of men and women and 9 linear measurements were measured with previously determined points and used in the literature. The measurements were made with the aid of the ImageJ Software® by two previously calibrated evaluators. The paired student's TTest and binary logistic regression were used, and all the variables obtained were tabulated for later statistical analysis with the IBM SPSS software package (23.0), with a significance level of 5%. Results: The statistical analysis revealed an acceptable level of sexual prediction for some measures. The ROC curve showed good reliability in the analysis through logistic regression. The mean of the variables "branch height", "body height" and "corozidic height" were highly suggestive of independent sexual prediction of the evaluator who analyzed them. Conclusion: Of the variables proposed by the present study, those that had a higher predictive degree for sex were the heights of the branch, the body and the corozidic.