期刊
JOURNAL OF FORENSIC AND LEGAL MEDICINE
卷 20, 期 5, 页码 530-536出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jflm.2013.02.012
关键词
Forensic sciences; Age estimation; Pulp/tooth area; Incisors; Portugal
Since 2004, several papers on the analysis of the apposition of secondary dentine have been published. The aim of this paper was to study a sample of pen-apical X-ray images of upper and lower incisors, both lateral and medial, to examine the application of pulp/tooth area ratio as an indicator of age. A sample of 116 individuals, 62 men and 54 women, aged between 18 and 74 years, was studied. Data were fitted with age as a linear function of the pulp/tooth ratio of incisors. The total variance explained by the regression equation ranged from 51.3% of age, when lower lateral incisors were used as explanatory variable, to 81.6% when upper lateral incisors were used. The accuracy of the corresponding regression model yielded ME = 8.44 and 5.34 years, respectively. These results show that, although incisors are less reliable than canines or lower premolars, they can be used to estimate age-at-death when the latter are absent. (C) 2013 Elsevier Ltd and Faculty of Forensic and Legal Medicine. All rights reserved.
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