Comparative study of facial proportions between Afro-Brazilian and white Brazilian children from 8 to 10 years of age

Cassio Rocha SOBREIRA, Gisele Naback Lemes VILANI, Vania Célia Vieira de SIQUEIRA

Objective: To evaluate the vertical facial proportions of Afro-Brazilian and white Brazilian female children, aged 8-10 year-old, and to evaluate differences between the race groups. Methods: The authors evaluated 70 cephalometric radiographs, in lateral norm, equally divided into the two groups, 22 at 8-year-old, 18 at 9-year-old, and 30 at 10-year-old. All the patients showed harmonious facial esthetics, normal occlusion and none of them were subjected to previous orthodontic treatment. The following proportions were evaluated: LAFH/TAFH (ANS-Me/N-Me), TPFH/TAFH (S-Go/N-Me), LPFHTPFH (Ar-Go/S-Go), LPFH/LAFH (Ar-Go/ANS-Me). Data were analyzed by descriptive statistics and Student?s t-test in order to compare the differences between the race groups, ANOVA with Bonferroni?s test for comparison between the ages and Pearson?s correlation coefficient to examine the level of association between facial proportions. Statistical analysis was performed at the 0.05 level of significance. Results: The findings showed no statistically significant differences between the groups and between the ages for each group, for all variables. Conclusion: There were no significant differences in facial proportions between Afro-Brazilian and white Brazilian female children. The facial proportions remained constant from 8 to 10 years of age, regardless the racial group.

Keywords: Cephalometrics. Facial proportions. Afro-Brazilian children. White Brazilian children.

Friday, December 27, 2024 12:59