Comparative study of the dental arch shape in young Brazilians with normal occlusion

• Autor(a) principal: Tkacz, Caroline Martins Gambardela
• Data de Publicação: 2015
• Tipo de documento: Dissertação
• Idioma: eng
• Título da fonte: Biblioteca Digital de Teses e Dissertações da USP
• Texto Completo: https://www.teses.usp.br/teses/disponiveis/25/25144/tde-04022020-154512/
• topic: Arco dental; Dental Arch; Dental Occlusion; Ethnic Groups; Grupos étnicos; Oclusão dentária

Aim: This study was to determine the normative values of dental arch length and width measures; to identify the shapes of the dental arches of Brazilians with normal occlusion. Methods: The sample included 100 dental casts from untreated subjects with normal occlusion divided by ethnic groups. It was digitized using a 3D scanner. The measures and the shapes of the dental arches from both arches were determined and compared. Results: Japanese women had the highest distances in the lower and upper posterior variables among all groups. White men presented the lowest values for transversal measurements. The Black men had the highest maxillary measures except for the intermolar width. The arch shape of the Japanese- Brazilian women presented the narrowest at the molar area. The Mulatto men had the highest dental arches in the anterior area. Conclusions: According to the results obtained, there was a slight variation in the shapes of dental arches between ethnic groups. Individual and ethnic characteristics in treatment should be considered.