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Estimativa médico-legal da idade pela proporção polpa/dente numa população portuguesa: validação do método de Cameriere em caninos superiores
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Objetivo: Este estudo teve como objetivo validar o método de Cameriere, recorrendo aos caninos superiores, numa população portuguesa, a fim de estimar a idade cronológica no âmbito médico-legal. Materiais e métodos: A amostra populacional foi constituída por 100 indivíduos (51 do sexo masculino e 49 do sexo feminino), com idades compreendidas entre os 15 e os 35 anos, para os quais existisse uma ortopantomografia realizada na Faculdade de Medicina Dentária da Universidade de Lisboa. Estas foram analisadas através do programa Adobe Photoshop® e a idade dentária, estimada de acordo com o método de Cameriere por um único observador. Procedeu-se à análise estatística dos dados obtidos através da análise de variância e covariância e testou-se a concordância intra e inter-observador através do coeficiente de correlação intraclasse. O nível de significância foi definido em 5%. Resultados: Os resultados da análise de covariância mostraram que o género parece não influenciar de forma significativa os resultados obtidos. Por outro lado, a análise de regressão linear demonstrou que o dente 13, comparativamente ao dente 23, apresentava uma melhor informação sobre a variabilidade da idade, considerando apenas o género masculino (R2 = 0,198; SE = 5,6159; ME = 4,8216). Conclusão: Há diferenças estatisticamente significativas entre a idade cronológica e a idade dentária estimada pelo método de Cameriere utilizando o canino superior direito e o canino superior esquerdo e o género parece não influenciar esta estimativa. O incisivo central superior direito, para o género feminino e canino superior direito, para o género masculino são os dentes que fornecem uma melhor estimativa da idade, para cada género. No futuro, recomenda-se a inclusão de amostras maiores e mais representativas da população portuguesa, bem como, a introdução de dados mais adequados à mesma, de forma a ampliar a evidência científica nesta área de interesse.
Objectives: The main goal of this study was to validate Cameriere method based on upper canines in a Portuguese population, in order to estimate the chronological age in medico-legal context. Materials and methods: The population sample assembled 100 individuals (51 males and 49 females), aged between 15 and 35 years, each one with an orthopantomography obtained in the Faculty of Dentistry of the University of Lisbon. These images were analysed using Adobe Photoshop® and the dental age was obtained in accordance to the Cameriere method by a single observer. The obtained data was investigated by statistical methods (variance and co-variance analysis) and the intra- and inter-observer variability were assessed by the intraclass correlation coefficient. The significance level was set at 5%. Results: The analysis of co-variance established that there are no statistically significant differences between males and females. Nonetheless, regression analysis indicated that the upper right canine, in comparison to the upper left, is the most closely correlated with age, considering only the male gender (R2 = 0,198; SE = 5,6159; ME = 4,8216). Conclusion: The study reveals some statistically significant differences between the chronological age and the dental age estimated through the Cameriere method when using the upper right and left canine. Nevertheless, gender does not seem to influence this estimate. The upper right central incisor, for the female gender, and the upper right canine, for the male gender, are respectively the teeth capable of better providing an age-estimate in each gender. In the future, it is advisable not only to broaden the populations’ samples but also to make them more representative of the Portuguese population. In addition, some more data should be added in order to expand the scientifically evidence in this area of expertise.
Objectives: The main goal of this study was to validate Cameriere method based on upper canines in a Portuguese population, in order to estimate the chronological age in medico-legal context. Materials and methods: The population sample assembled 100 individuals (51 males and 49 females), aged between 15 and 35 years, each one with an orthopantomography obtained in the Faculty of Dentistry of the University of Lisbon. These images were analysed using Adobe Photoshop® and the dental age was obtained in accordance to the Cameriere method by a single observer. The obtained data was investigated by statistical methods (variance and co-variance analysis) and the intra- and inter-observer variability were assessed by the intraclass correlation coefficient. The significance level was set at 5%. Results: The analysis of co-variance established that there are no statistically significant differences between males and females. Nonetheless, regression analysis indicated that the upper right canine, in comparison to the upper left, is the most closely correlated with age, considering only the male gender (R2 = 0,198; SE = 5,6159; ME = 4,8216). Conclusion: The study reveals some statistically significant differences between the chronological age and the dental age estimated through the Cameriere method when using the upper right and left canine. Nevertheless, gender does not seem to influence this estimate. The upper right central incisor, for the female gender, and the upper right canine, for the male gender, are respectively the teeth capable of better providing an age-estimate in each gender. In the future, it is advisable not only to broaden the populations’ samples but also to make them more representative of the Portuguese population. In addition, some more data should be added in order to expand the scientifically evidence in this area of expertise.
Descrição
Tese de mestrado, Medicina Dentária, Universidade de Lisboa, Faculdade de Medicina Dentária, 2016
Palavras-chave
Medicina dentária forense Identificação humana Teses de mestrado - 2016