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Master's Dissertation
DOI
https://doi.org/10.11606/D.25.2011.tde-14072011-085534
Document
Author
Full name
Juliana Moura Storniolo
Institute/School/College
Knowledge Area
Date of Defense
Published
Bauru, 2011
Supervisor
Committee
Pinzan, Arnaldo (President)
Henriques, Jose Fernando Castanha
Kanashiro, Lylian Kazumi
Title in Portuguese
Estudo cefalométrico comparativo, da análise de McNamara Jr., em leucodermas, xantodermas e nipobrasileiros, com oclusão normal e perfil agradável
Keywords in Portuguese
Cefalometria
Grupos étnicos
Abstract in Portuguese
Introdução: A análise cefalométrica de McNamara Jr. é um meio auxiliar para o diagnóstico das discrepâncias dentoesqueléticas e amplamente utilizada, principalmente porque fornece um diagnóstico orientador dos procedimentos cirúrgicos a serem realizados ou à utilização de aparelhos funcionais. Muitos trabalhos já demonstraram que diferentes etnias apresentam padrões cefalométricos distintos. Nesse sentido, as características próprias dos indivíduos devem ser respeitadas, para suportar o diagnóstico e facilitar o plano de tratamento entre as diferentes etnias e seus diferentes padrões de miscigenação. Objetivo: Determinar os valores médios de normalidade das grandezas cefalométricas relacionadas à análise de McNamara Jr. de jovens mestiços nipobrasileiros, com oclusão normal, descendentes de japoneses e brasileiros e comparar os resultados das variáveis com amostras de jovens brasileiros leucodermas e xantodermas que apresentem as mesmas características. Material e Métodos: Foram utilizadas 40 telerradiografias de jovens leucodermas, 32 de nipobrasileiros e 33 de xantodermas provenientes do arquivo da Disciplina de Ortodontia da Faculdade de Odontologia de Bauru - Universidade de São Paulo. As três amostras foram constituídas de indivíduos com oclusão normal e face bem balanceada e foram divididas por gênero para facilitar a comparação. Os dados foram analisados estatisticamente utilizando-se: análise de variância a um critério (ANOVA), teste t e a análise de covariância (ANCOVA). Resultados: Encontrou-se diferença estatística (p<0,05) entre as etnias apenas para o ângulo nasolabial no gênero masculino, apresentando os nipobrasileiros um valor intermediário entre os xantodermas e leucodermas. Conclusão: As amostras apresentaram características semelhantes para as variáveis estudadas, já que apenas o ângulo nasolabial no gênero masculino apresentou diferença estatística significante.
Title in English
Comparative cephalometric study of McNamara Jr.s analysis in Brazilian- Whites, Brazilian-Japaneses and Japanese-Brazilian descents, with normal occlusion and pleasant profile.
Keywords in English
Cephalometry
Ethnic group
Abstract in English
Introduction: McNamara Jr.s cephalometric analysis is an aiding means to diagnose dental and skeletal discrepancies and is widely used, as it provides a guiding diagnosis for surgical procedures to be performed or for the use of functional devices. Quite a few studies have already showed that different ethnic groups have different cephalometric patterns. Thus, single characteristics should be respected as to support the diagnosis and help the treatment plan for different ethnic groups and their different patterns of miscegenation. Objective: Obtain mean normal values used in the cephalometric analysis of McNamara Jr. for adolescent Japanese-Brazilian descents with normal occlusion and also compared this sample with similar samples of Brazilian-Whites and Brazilian-Japaneses. Methods: Cephalometric films were used from 40 Brazilian-Whites, 32 Japanese-Brazilians and 33 Brazilian- Japaneses descents from the file of the Orthodontic Department of Dental School of Bauru University of São Paulo. The three samples were composed of individuals with normal occlusion and pleasant profile and were divided into genders to help the comparison. The data were statistically analyzed by using the ANOVA, t test and ANCOVA. Results: There was significant difference between Brazilian-Whites, Japanese-Brazilians and Brazilian-Japaneses descents only at the lip-nasal angle of males. Japanese-Brazilians descents displayed an intermediate value between Brazilian-Whites and Brazilian-Japaneses. Conclusion: The samples presented similar characteristics in the studied variables and only showed a significant statistical difference at the lip-nasal angle for males.
 
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Publishing Date
2011-07-15
 
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