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Estimativa da idade no âmbito da Identificação médico-legal numa população portuguesa através de métodos directos e Indirectos
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Resumo(s)
Neste trabalho de investigação foi analisada a aplicabilidade de parâmetros radiográficos e morfológicos utilizados na identificação médico-legal, nomeadamente na estimativa da idade, numa amostra da população adulta portuguesa. O objectivo principal deste estudo piloto consistiu em comparar a idade cronológica com a idade dentária estimada a partir do método de Kvaal e Solheim e do método de Bang e Ramm. Para atingir este objectivo foram analisados 35 dentes uniradiculares. Na análise radiográfica pelo método de Kvaal e Solheim (1994) as medições foram efectuadas através do programa de software de radiologia digital RVG Kodak 2200 intra-oral com factores de exposição 60-70 KVp e 7mA. O parâmetro morfológico, a dentina translúcida foi avaliado no dente íntegro e no dente seccionado. Os objectos de estudo foram seccionados através de uma broca de tungsténio, num plano vertical numa direcção vestíbulo-lingual. A relação entre os coeficientes foi calculada entre a idade e os ratios e o nível de inclusão será de p <0.05. A análise estatística demonstrou pelo coeficiente de Pearson que o método de Bang e Ramm (dentes seccionados) permite obter uma melhor correlação com a estimativa de idade (0,86). Com este estudo, concluiu-se que a idade dentária calculada com o método de Kvaal e Solheim e de Bang e Ramm não é significativamente diferente da idade cronológica do indivíduo.
This investigation work had as objective, to test the applicability of morphological and radiographic parameters used in forensic identification, particularly in estimating the age. Thus, a sample of the Portuguese adult population was used to test our hypothesis. Likewise, this experimental study intends to compare the chronological age with the estimated dental age using the methods of Kvaal and Solheim as well as the Bang and Ramm. Thirty-five single-rooted teeth were analyzed throughout this study. For the radiographic analysis which used the method of Kvaal and Solheim (1994), all measurements were made by the digital radiography software Kodak RVG 2200 intra-oral with exposure factors of 60-70 KVp and 7mA. The morphological parameter, the translucent dentin were assessed in both the intact and sectioned tooth. The objects used in this study were sectioned by a tungsten carbide drill in a vertical surface with a buccolingual direction. The relationship between the coefficients was calculated among the age, the ratios and the level of inclusion was p <0.05. The statistical analysis showed that the Pearson's correlation was the strongest (0,86) for the Bang and Ramm (sectioned tooth) method indicating that age can be estimated better with this particular method. The dental age calculated either through the method of Kvaal and Solheim or Bang and Ramm is not considerably different from the individual’s chronological age.
This investigation work had as objective, to test the applicability of morphological and radiographic parameters used in forensic identification, particularly in estimating the age. Thus, a sample of the Portuguese adult population was used to test our hypothesis. Likewise, this experimental study intends to compare the chronological age with the estimated dental age using the methods of Kvaal and Solheim as well as the Bang and Ramm. Thirty-five single-rooted teeth were analyzed throughout this study. For the radiographic analysis which used the method of Kvaal and Solheim (1994), all measurements were made by the digital radiography software Kodak RVG 2200 intra-oral with exposure factors of 60-70 KVp and 7mA. The morphological parameter, the translucent dentin were assessed in both the intact and sectioned tooth. The objects used in this study were sectioned by a tungsten carbide drill in a vertical surface with a buccolingual direction. The relationship between the coefficients was calculated among the age, the ratios and the level of inclusion was p <0.05. The statistical analysis showed that the Pearson's correlation was the strongest (0,86) for the Bang and Ramm (sectioned tooth) method indicating that age can be estimated better with this particular method. The dental age calculated either through the method of Kvaal and Solheim or Bang and Ramm is not considerably different from the individual’s chronological age.
Descrição
Tese de mestrado, Medicina Dentária, Universidade de Lisboa, Faculdade de Medicina Dentária, 2011
Palavras-chave
Medicina dentária forense Teses de mestrado - 2011