Análise craniométrica da predição sexual em uma subpopulação brasileira: um estudo retrospectivo longitudinal

Abstract

The present study aims to perform through images of Cone Beam Computed Tomography (CBCT), the craniometric measurements in the maxillary sinuses (MSs) and piriform aperture (PA) with sexual prediction capacity in a Brazilian subpopulation, also finding possible correlations that may exist between these measurements and the size of the maxillary sinus ostium (MSO). For this, 102 images of CBCT were selected (59 female and 43 male), including patients between 20 and 60 years, divided into 4 groups by age group: 20-30 years (33 patients), 31-40 years (19 patients), 41-50 years (23 patients) and 51-60 years (27 patients). The measurements were made by 2 examiners, with a total of 11 measurements performed per patient, 7 in the MSs (height, width, length of each MS and total width between the MSs), 2 in the PA (height and width) and 2 in OSM (diameter of each ostium). The intra and inter-examiner analysis was performed using the intraclass correlation coefficient test (ICC). The test of measures useful for sexual prediction was performed by the analysis of variance test (ANOVA One way), which also revealed the mean values and standard deviation for each measure in female and male. The degree of correlation between the variables studied was obtained by Pearson's correlation, also identifying those with significant statistical differences. As a result, with the ICC test, it was found that the intra-examiner analysis for evaluator 1 was 0.97, for evaluator 2 was 0.85 and the inter-examiner analysis between evaluators 1 and 2 was 0.92. The measures with statistical difference between sexes were a total of 7 and the correlations found with statistical differences were 4 in males and 6 in the general analysis. In females no correlation was found. Thus, was concluded that all measurements in the MSs and PA are useful for sexual differentiation in the Brazilian subpopulation studied, except the width of the left maxillary sinus and the width of the piriform aperture. In addition, the significant correlations found in males were: height, width and length of the right MS, plus the length of the left MS positive correlation with the height of the piriform aperture. In the total analysis: height, width and length of the right MS, height and length of the left MS and total width along the MS positive correlation with the height of the piriform aperture. Therefore, is possible to conclude that the CBCT can be used to assist in forensic investigations and analyses, and it is important to carry out more studies like this in different populations, since the craniometric characteristics change. [resumo fornecido pelo autor]