Dental age estimation in Somali children and sub-adults combining permanent teeth and third molar development

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http://hdl.handle.net/10138/305348

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Metsäniitty , M , Waltimo-Siren , J , Ranta , H , Fieuws , S & Thevissen , P 2019 , ' Dental age estimation in Somali children and sub-adults combining permanent teeth and third molar development ' , International Journal of Legal Medicine , vol. 133 , no. 4 , pp. 1207-1215 . https://doi.org/10.1007/s00414-019-02053-w

Title: Dental age estimation in Somali children and sub-adults combining permanent teeth and third molar development
Author: Metsäniitty, Mari; Waltimo-Siren, Janna; Ranta, Helena; Fieuws, Steffen; Thevissen, Patrick
Contributor: University of Helsinki, Department of Forensic Medicine
University of Helsinki, HUS Head and Neck Center
University of Helsinki, Medicum
Date: 2019-07
Number of pages: 9
Belongs to series: International Journal of Legal Medicine
ISSN: 0937-9827
URI: http://hdl.handle.net/10138/305348
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.
Subject: Forensic odontology
Forensic age estimation
Age determination
Dental development
Somali
Bayesian age estimation
CHRONOLOGICAL AGE
ESTIMATION CHARTS
TOOTH FORMATION
WILLEMS METHOD
WISDOM TOOTH
ACCURACY
MINERALIZATION
MATURITY
CALCULATE
SKELETAL
319 Forensic science and other medical sciences
313 Dentistry
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