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Master's Dissertation
DOI
https://doi.org/10.11606/D.25.2023.tde-22062023-094227
Document
Author
Full name
Gabriel Eduardo Bravo Vallejo
Institute/School/College
Knowledge Area
Date of Defense
Published
Bauru, 2023
Supervisor
Committee
Freitas, Marcos Roberto de (President)
Henriques, Jose Fernando Castanha
Pinto, Rayane de Oliveira
Vercelino, Celia Regina Maio Pinzan
Title in English
Long-term profile attractiveness of Class I and Class II malocclusion patients treated with and without extractions
Keywords in English
Angle Class I malocclusion
Angle Class II malocclusion
Esthetics
Tooth extraction
Abstract in English
Objective: To compare the profile attractiveness in subjects treated with and without extractions after the long-term 35-year follow-up, according to laypeople, dentists, and orthodontists. Methods: Forty patients with Class I and Class II malocclusion, were divided into 2 groups, according to the treatment protocol: Extraction group, extractions of 4 premolars (n=24); with mean pretreatment (T1), posttreatment (T2), and long-term posttreatment (T3) ages of 13.13, 15.50 and 49.56 years, respectively. The mean treatment time (T2-T1) was 2.37 years, and the long-term follow-up (T3-T2) was 34.19 years; Nonextraction group (n=16); with mean ages at T1, T2, and T3 of 13.21, 15.07 and 50.32 years, respectively. The mean treatment time (T2-T1) was 1.86 years, and the mean long-term follow-up evaluation time (T3-T2) was 35.25 years. Lateral cephalograms were used to perform profile facial silhouettes constructed and an online evaluation was realized by 72 laypeople, 63 dentists, and 65 orthodontists, rating the attractiveness from 1 (least attractive) to 10 (most attractive). The intragroup comparison was performed with the repeated measures ANOVA and Tukey tests. Intergroup comparison was performed with t tests, one-way ANOVA and Tukey tests. Results: The extraction group presented a greater treatment time than the nonextraction group. At the pretreatment and posttreatment stages, the extraction and nonextraction groups presented similar profile attractiveness. At the long-term posttreatment follow-up, the nonextraction group presented a greater profile attractiveness than the extraction group. Laypeople and dentists were more critical than orthodontics. Conclusions: Nonextraction profile silhouettes are more attractive than extraction profiles after 35-year posttreatment.
Title in Portuguese
Atratividade de perfil em longo prazo de pacientes com má oclusão Classe I e Classe II tratados com e sem extrações
Keywords in Portuguese
Estética
Extração dentaria
Má oclusão de Classe I de Angle
Má oclusão de Classe II de Angle
Abstract in Portuguese
Objetivo: Comparar a atratividade do perfil em indivíduos tratados com e sem extrações após 35 anos de acompanhamento de longo prazo, segundo leigos, dentistas e ortodontistas. Métodos: Quarenta pacientes com má oclusão de Classe I e Classe II, foram divididos em 2 grupos, de acordo com o protocolo de tratamento: Grupo Extração, extrações de 4 pré-molares (n=24); com idade média pré-tratamento (T1), pós-tratamento (T2) e pós-tratamento de longo prazo (T3) de 13,13, 15,50 e 49,56 anos, respectivamente. O tempo médio de tratamento (T2-T1) foi de 2,37 anos e o acompanhamento de longo prazo (T3-T2) foi de 34,19 anos; Grupo Sem Extração (n=16); com médias de idade em T1, T2 e T3 de 13,21, 15,07 e 50,32 anos, respectivamente. O tempo médio de tratamento (T2-T1) foi de 1,86 anos, e o tempo médio de avaliação de acompanhamento de longo prazo (T3-T2) foi de 35,25 anos. Telerradiografias laterais foram usadas para realizar silhuetas faciais de perfil e um questionário on-line foi aplicado para 72 leigos, 63 dentistas e 65 ortodontistas, avaliando a atratividade com notas de 1 (menos atraente) a 10 (mais atraente). A comparação intragrupo foi realizada com os testes ANOVA de medidas repetidas e Tukey. A comparação intergrupos foi realizada com testes t, ANOVA a um critério e teste de Tukey. Resultados: O grupo extração apresentou um tempo de tratamento maior que o grupo não extração. Nas fases de pré-tratamento, pós-tratamento e pós-tratamento de longo prazo, os grupos extração e não extração apresentaram atratividade de perfil semelhante. Leigos e dentistas foram mais críticos do que os ortodontistas. Conclusões: Após 35 anos de pós-tratamento, a atratividade do perfil foi semelhante em pacientes tratados com e sem extrações.
 
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Release Date
2025-03-24
Publishing Date
2023-06-23
 
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