Age estimation from structural changes of teeth and buccal alveolar bone level

Koh, K.K. and Tan, J.S. and Nambiar, P. and Ibrahim, N. and Mutalik, S. and Asif, M.K. (2017) Age estimation from structural changes of teeth and buccal alveolar bone level. Journal of Forensic and Legal Medicine, 48. pp. 15-21. ISSN 1752-928X

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Abstract

Forensic odontology plays a vital role in the identification and age estimation of unknown deceased individuals. The purpose of this study is to estimate the chronological age from Cone-Beam Computed Tomography (CBCT) images by measuring the buccal alveolar bone level (ABL) to the cemento-enamel junction and to investigate the possibility of employing the age-related structural changes of teeth as studied by Gustafson. In addition, this study will determine the forensic reliability of employing CBCT images as a technique for dental age estimation. A total of 284 CBCT images of Malays and Chinese patients (150 females and 134 males), aged from 20 years and above were selected, measured and stages of age-related changes were recorded using the i-CAT Vision software. Lower first premolars of both left and right side of the jaw were chosen and the characteristics described by Gustafson, namely attrition, secondary dentine formation and periodontal recession were evaluated. Linear regression analysis was performed for the buccal bone level and the R values obtained were 0.85 and 0.82 for left and right side respectively. Gustafson's characteristics were analysed using multiple regression analysis with chronological age as the dependent variable. The results of the analysis showed R values ranged from 0.44 to 0.62. Therefore it can be safely concluded that the buccal bone level highly correlated with the chronological age and is consequently the most suitable age-related characteristic for forensic age estimation.

Item Type: Article
Uncontrolled Keywords: Cone-Beam Computed Tomography (CBCT); Age estimation; Gustafson's; Criteria; Attrition; Secondary dentin; Periodontal recession; Buccal; Bone level; Beam computed-tomography; Dental radiographs; Quality; Identification; Legal Medicine
Subjects: R Medicine > RK Dentistry
Divisions: Faculty of Dentistry > Dept of General Dental Practice And Oral & Maxillofacial Imaging
Depositing User: Mr Ahmad Azwan Azman
Date Deposited: 27 Sep 2017 05:21
Last Modified: 27 Sep 2017 05:21
URI: http://eprints.um.edu.my/id/eprint/17798

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