John Libbey Eurotext

L'Orthodontie Française

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Sexual dimorphism and facial cavities: A 3D imaging volumetric study Volume 82, issue 2, 83e réunion scientifique de la S.F.O.D.F. – Le traitement de l'adulte : l'orthodontie dans la lutte contre le vieillissement (2e partie)

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Introduction: The aim of this study was to investigate the sexual dimorphism in facial cavity’s volumes of untreated young adults. Methods: Sixty subjects, ages between 18 to 30 years, were selected and divided in two groups according to the gender. Volumes of orbital, nasal, sinusal and buccal cavities were measured from CT scans with AMIRA®software. The statistical studies were performed using Kolmogorov-Smirnov test for normality followed by Student “t” test (p < 0.05). Results: The gender comparison reflected statistically significant differences between the volumes of orbital, nasal, sinusal and buccal cavities, volumes being larger in males. Sexual dimorphism did not appear in the ratio of each cavity volume on the total facial volume. Conclusion: Absolute volume of facial cavities are larger in males, but no sexual dimorphism is detected comparing volume ratios. A difference in size, but not in shape, between genders might exist.