A1 Refereed original research article in a scientific journal
Dental age estimation in Somali children and sub-adults combining permanent teeth and third molar development
Authors: Metsaniitty M, Waltimo-Siren J, Ranta H, Fieuws S, Thevissen P
Publisher: SPRINGER
Publication year: 2019
Journal: International Journal of Legal Medicine
Journal name in source: INTERNATIONAL JOURNAL OF LEGAL MEDICINE
Journal acronym: INT J LEGAL MED
Volume: 133
Issue: 4
First page : 1207
Last page: 1215
Number of pages: 9
ISSN: 0937-9827
DOI: https://doi.org/10.1007/s00414-019-02053-w
Abstract
Estimation of an individual's age has important applications in forensics. In young individuals, it often relies on separate evaluations of permanent teeth (PT) and third molars (TM) development. Here, we analysed the age prediction performance of combined information from PT and TM in an unusual sample of healthy Somalis, born and living in Finland. PT development was staged according to Demirjian et al. (Hum Biol, 1973) and TM development according to Kohler et al. (Ann Anat, 1994), using panoramic radiographs from 803 subjects (397 males, 406 females) aged 3-23years. A sex-specific Bayesian age-estimation model for the multivariate distribution of the stages conditional on age was fitted on PT, TM and PT and TM combined. The age-estimation performances were validated and quantified. The approach combining PT and TM only overestimated age with an ME of -0.031years in males and -0.011years in females, indicating the best age prediction performance.
Estimation of an individual's age has important applications in forensics. In young individuals, it often relies on separate evaluations of permanent teeth (PT) and third molars (TM) development. Here, we analysed the age prediction performance of combined information from PT and TM in an unusual sample of healthy Somalis, born and living in Finland. PT development was staged according to Demirjian et al. (Hum Biol, 1973) and TM development according to Kohler et al. (Ann Anat, 1994), using panoramic radiographs from 803 subjects (397 males, 406 females) aged 3-23years. A sex-specific Bayesian age-estimation model for the multivariate distribution of the stages conditional on age was fitted on PT, TM and PT and TM combined. The age-estimation performances were validated and quantified. The approach combining PT and TM only overestimated age with an ME of -0.031years in males and -0.011years in females, indicating the best age prediction performance.
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