Three-dimensional Modeling of the Various Volumes of Canines to Determine Age and Sex: A Preliminary Study

• Autores: Delphine Tardivo, Julien Sastre, Michel Ruquet, Lionel Thollon, Pascal Adalian, Georges Leonetti, Bruno Foti
• Localización: Journal of forensic sciences, ISSN-e 1556-4029, ISSN 0022-1198, Vol. 56, Nº. 3, 2011, págs. 766-770
• Idioma: inglés
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• Resumen

  • Keywords:forensic science;forensic anthropology;age determination by teeth;sex determination;secondary dentine;three-dimensional models Abstract: Canines are usually used in anthropological and forensic sciences for sex and age determination. The best methods to estimate age are based on secondary dentine apposition, evaluated from periapical X-rays. The aim of this study was to propose a new method of sex and age estimation using 3D models to obtain more precise predictions using tooth volumes. Fifty-eight dental CT scans of patients aged 14�74 with a well-balanced sex ratio composed the sample. One hundred and thirty-three healthy canines were modeled (Mimics 12.0). The sample was divided into a training sample and a validation sample. An age formula was determined using the �pulp volume/tooth volume� ratio. Sex prediction was adjusted with total volumes. Applying the equations to the validation sample, no significant difference was found between the real and predicted ages, and 100% of the sex predictions were correct. This preliminary study gives interesting results, and this method is worth being tested on a larger data sample.