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Validade da linha mediana da face, construída a partir do plano bipupilar, como referência vertical da face
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Orientador(es)
Resumo(s)
Objetivo: Este estudo pretende avaliar se existe uma correlação entre os planos de referência dos tecidos moles da face e os planos esqueléticos subjacentes.
Métodos: Após a seleção sequencial dos pacientes que procuraram tratamento ortodôntico na Clínica Universitária Egas Moniz, foram aplicados os critérios de exclusão, sendo selecionados 53 indivíduos dos 67. Avaliaram-se as fotografias e telerradiografias do crânio em norma frontal (TCF), pertencentes aos registos iniciais dos pacientes. Nas fotografias foram traçados o plano Bipupilar (PBP) e a linha mediana da face (LMF), e nas TCF o plano médio sagital (PMS), e linhas orbitárias superior (LOS) e inferior (LOI). Posteriormente, fez-se a sobreposição das fotografias com as TCF, traçaram-se os planos de referência vertical (V) e horizontal (H), e calcularam-se os ângulos entre o H e o PBP, o H e a LOS, o H e a LOI, o V e o PMS, e o V e a LMF.
Utilizou-se o programa informático Dolphin1 e os dados obtidos foram registados para posterior tratamento estatístico, através do coeficiente de correlação de Ró de Spearman, sendo possível perceber se existia uma correlação das variáveis entre si.
Resultados: Verificou-se uma correlação ligeira entre o PBP e a LOS, com um coeficiente de correlação de 0,384 e uma significância de p=0,005. Nas restantes variáveis não se verificou a existência de uma correlação.
Conclusões: Com o presente estudo pode concluir-se que para a amostra estudada os resultados são indicadores de que não parece existir uma correlação entre os tecidos duros e moles nos planos verticais e horizontais avaliados.
Objective: This study aims to evaluate whether there is a correlation between the facial soft tissue reference planes and the underlying skeletal planes. Methods: After sequential selection of patients who sought orthodontic treatment at the Clínica Universitária Egas Moniz, exclusion criteria were applied, and 53 out of 67 individuals were selected. The photographs and frontal cephalometric radiographs of the skull (TCF) from the patients' initial records were evaluated. In the photographs, the bipo-pupillary plane (PBP) and the facial midline (LMF) were drawn, and in the TCF, the mid-sagittal plane (PMS), and upper (LOS) and lower (LOI) orbital lines were traced. Subsequently, the photographs were superimposed on the TCF, the vertical (V) and horizontal (H) reference planes were drawn, and the angles between the H and the PBP, the H and the LOS, the H and the LOI, the V and the PMS, and the V and the LMF were calculated. The Dolphin2 computer program was used, and the data obtained were recorded for further statistical treatment, using Spearman's Ró correlation coefficient, and it was possible to see if there was a correlation of the variables with each other. Results: There was a slight correlation between PBP and LOS, with a correlation coefficient of 0,384 and a significance of p=0,005. In the remaining variables no correlation was found. Conclusions: With this study we can conclude that for the sample studied the results are indicators that there does not seem to be a correlation between the hard and soft tissues in the vertical and horizontal planes evaluated.
Objective: This study aims to evaluate whether there is a correlation between the facial soft tissue reference planes and the underlying skeletal planes. Methods: After sequential selection of patients who sought orthodontic treatment at the Clínica Universitária Egas Moniz, exclusion criteria were applied, and 53 out of 67 individuals were selected. The photographs and frontal cephalometric radiographs of the skull (TCF) from the patients' initial records were evaluated. In the photographs, the bipo-pupillary plane (PBP) and the facial midline (LMF) were drawn, and in the TCF, the mid-sagittal plane (PMS), and upper (LOS) and lower (LOI) orbital lines were traced. Subsequently, the photographs were superimposed on the TCF, the vertical (V) and horizontal (H) reference planes were drawn, and the angles between the H and the PBP, the H and the LOS, the H and the LOI, the V and the PMS, and the V and the LMF were calculated. The Dolphin2 computer program was used, and the data obtained were recorded for further statistical treatment, using Spearman's Ró correlation coefficient, and it was possible to see if there was a correlation of the variables with each other. Results: There was a slight correlation between PBP and LOS, with a correlation coefficient of 0,384 and a significance of p=0,005. In the remaining variables no correlation was found. Conclusions: With this study we can conclude that for the sample studied the results are indicators that there does not seem to be a correlation between the hard and soft tissues in the vertical and horizontal planes evaluated.
Descrição
Dissertação para obtenção do grau de Mestre no Instituto Universitário Egas Moniz
Palavras-chave
Análise frontal Planos de referência Plano bipupilar Linha mediana da face