Reliability of a forensic odontology method for age-at-death estimation in adults: A Mexican case study

Q1 Social Sciences Forensic Science International: Synergy Pub Date : 2024-01-01 DOI:10.1016/j.fsisyn.2024.100484

Roberto Scendoni , Israel Soriano Vázquez , Isabella Lima Arrais Ribeiro , Stefano De Luca , Galina V. Zolotenkova , Serena Viva , Akiko Kumagai , Roberto Cameriere

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Abstract

This study aimed to evaluate the reliability of an age estimation method based on the pulp⁄tooth area ratio by assessing intra- and inter-examiner agreement across five observers at different intervals. Using the same X-ray device and technical parameters, 96 digital periapical X-ray images of upper and lower canines were obtained from 28 deceased people in Central America, whose age at death ranged from 19 to 49 years. Excellent and good agreement of results were achieved, and there were no statistically significant differences. The R2 value for upper teeth (54.0%) was higher than the R2 value for lower teeth (45.7%). The highest intraclass correlation coefficient value was 0.995 (0.993–0.997) and the lowest 0.798 (0.545–0.895). Inter-examiner agreement was high with values of 0.975 (0.965–0.983) and 0.927 (0.879–0.955). This method is adequate for assessing age in missing and unidentified people, including victims of mass disasters.

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成人死亡年龄估计法医牙科方法的可靠性：墨西哥案例研究

本研究旨在通过评估五位观察者在不同时间间隔内的检查内和检查间的一致性，评估基于牙髓/牙齿面积比的年龄估计方法的可靠性。使用相同的 X 光设备和技术参数，从中美洲的 28 位死者（死亡时的年龄在 19 岁到 49 岁之间）身上获得了 96 张上下犬齿的数字根尖 X 光图像。结果的一致性非常好，没有统计学上的显著差异。上牙的 R2 值（54.0%）高于下牙的 R2 值（45.7%）。类内相关系数最高为 0.995（0.993-0.997），最低为 0.798（0.545-0.895）。检查者之间的一致性很高，分别为 0.975（0.965-0.983）和 0.927（0.879-0.955）。这种方法适用于评估失踪人员和身份不明人员（包括大规模灾难的受害者）的年龄。

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