Comportamento radiográfico dos terceiros molares inferiores em pacientes tratados ortodonticamente com e sem extrações de primeiros pré-molares
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Data
2004
Autores
Hauy, Reinaldo Roberto [UNESP]
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
O resente trabalho objetivou avaliar as alterações ocorridas nas posições dos terceiros molares inferiores em pacientes tratados ortodonticamente com extrações dos primeiros prémolares. Utilizou-se 80 ortopantomografias, obtidas no pré e póstratamento ortodôntico corretivo de 40 pacientes, divididos em dois grupos. O Grupo 1 constou de 20 pacientes (13 femininos e 7 masculinos) que se submeteram a tratamento ortodôntico com extrações de primeiros pré-molares; o Grupo 2 foi constituído por 20 pacientes (13 femininos e 7 masculinos) tratados ortodonticamente sem extrações. Foram estabelecidas medidas angulares com o objetivo de avaliar as inclinações e medidas lineares para analisar as modificações no sentido vertical dos terceiros molares. Todos os dados foram mensurados duas vezes, cujos valores médios foram submetidos aos testes t emparelhado e teste t independente. Os resultados mostraram diferenças estatisticamente significantes (p<0,01) entre as medidas angulares finais e iniciais do Grupo 1. Concluiu-se que os deslocamentos verticais dos terceiros molares inferiores são semelhantes quando comparados os casos tratados ortodonticamente com e sem extrações e que estes elementos dentários tornam-se mais verticalizados ao final da terapia realizada com extrações de primeiros pré-molares inferiores.
he present study aimed to evaluate the positional changes occurred with lower third molars in patients treated orthodontically with extractions of first premolars. A total of eighty panoramic radiographs obtained at pre and post-treatment periods from forty patients, were divided into two groups. Group 1 consisted of 20 patients (13 female and 7 male) that were submitted to orthodontic treatment with extraction of first premolars; Group 2 consisted of 20 patients (13 female and 7 male) that were submitted to orthodontic treatment without extractions. Angular measurements were established to evaluate the tipping and linear measurements were established to analyze the vertical changes of the lower third molars. All data were measured twice and averaged, then submitted to paired and unpaired t test. Significant differences were found between the initial and final angular measurements of Group 1 (p<0.01). It was concluded that similar vertical changes of lower third molars occurred when extraction and non-extraction cases were compared, and third lower molars became less tipped with the extractions of lower first premolars.
he present study aimed to evaluate the positional changes occurred with lower third molars in patients treated orthodontically with extractions of first premolars. A total of eighty panoramic radiographs obtained at pre and post-treatment periods from forty patients, were divided into two groups. Group 1 consisted of 20 patients (13 female and 7 male) that were submitted to orthodontic treatment with extraction of first premolars; Group 2 consisted of 20 patients (13 female and 7 male) that were submitted to orthodontic treatment without extractions. Angular measurements were established to evaluate the tipping and linear measurements were established to analyze the vertical changes of the lower third molars. All data were measured twice and averaged, then submitted to paired and unpaired t test. Significant differences were found between the initial and final angular measurements of Group 1 (p<0.01). It was concluded that similar vertical changes of lower third molars occurred when extraction and non-extraction cases were compared, and third lower molars became less tipped with the extractions of lower first premolars.
Descrição
Palavras-chave
Ortodontia, Dentes - Extração, Radiografia panoramica, Terceiros molares, Movimentação dentária, Tooth movement, Third molar
Como citar
HAUY, Reinaldo Roberto. Comportamento radiográfico dos terceiros molares inferiores em pacientes tratados ortodonticamente com e sem extrações de primeiros pré-molares. 2004. 116 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Odontologia de Araçatuba, 2004.