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• W2292571667 abstract "Abstract The treatment of Class II can have a positive or a negative impact on the facial profile aesthetic. The present study aims to evaluate the impact of two methods of orthodontic treatment of Class II malocclusion on the facial profile aesthetics. The facial profiles of 46 patients with Class II malocclusion were outlined by radiography before and after treatment; 23 of the patients were treated by the extraction of two maxillary first premolars (EXT group), and the other 23, with the Thurow Appliance (TA group), followed by braces. The profile silhouettes were filled in using the Corel Draw program. An album containing the patient’s silhouettes of both groups was created randomly, with two profiles of a patient per page. The preferences of 30 orthodontists, 30 dentists, and 30 laypersons in relation to the profile were recorded along with their perceived differences between the pre-treatment and post-treatment profiles, according to the visual analog scale. All groups of evaluators preferred the post-treatment profile more frequently. There were statistically significant differences in the evaluators’ preferences only between the orthodontists’ and the laypersons’ groups. None of the evaluators’ groups indicated substantial differences between the pre-treatment and post-treatment profiles. It may be concluded that both Class II treatment protocols, i.e., the double-extraction of the first premolars and the use of TA, improved the patients’ facial profile aesthetics.Keywords: Face. Malocclusion, Angle Class II. Tooth Extraction.Resumo As modalidades de tratamentos da Classe II tem um impacto sobre a estética da face que pode ser positivo ou negativo. O objetivo deste estudo foi avaliar o impacto da estética do perfil facial decorrente de dois tipos de tratamento para a Classe II. Foram traçados os perfis faciais das telerradiografias pré e pós-tratamento de 46 pacientes Classe II, sendo 23 de um grupo tratado com extração de dois primeiros pré-molares superiores e 23 de um grupo tratado com AEB Conjugado seguido de aparelho fixo, e estes traçados foram preenchidos com o programa Corel Draw. Foi montado um álbum com as silhuetas dos pacientes (AEB e EXO) de forma aleatória, sendo dois perfis em cada folha do mesmo paciente. Foi pedido para 30 ortodontistas, 30 cirurgiões-dentistas e 30 leigos para verificarem a sua preferência em relação ao perfil e a quantidade de diferença entre os perfis pré e pós-tratamento, de acordo com a escala analógica visual. Os 3 grupos de avaliadores preferiram o perfil pós-tratamento com maior frequência. Houve diferenças estatisticamente significantes somente entre os grupos de avaliadores ortodontistas e leigos; os 3 grupos de avaliadores indicaram que os perfis pré e pós-tratamento, não diferiram substancialmente. Pode-se concluir que o tratamento da Classe II, com extração de dois primeiros pré-molares, e com o uso do aparelho AEB Conjugado produziu um impacto positivo na estética do perfil.Palavras-chave: Face. Má Oclusão de Angle Classe II. Extração Dentária." @default.
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• W2292571667 date "2018-10-31" @default.
• W2292571667 modified "2023-10-18" @default.
• W2292571667 title "The esthetic profile preferences of Class II malocclusion patients treated with extraction or non-extraction" @default.
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• W2292571667 doi "https://doi.org/10.17921/2447-8938.2018v20n3p179-184" @default.
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