Departament of Oral Medicine, Bauru School of Dentistry (FOB), University of São Paulo (USP), Bauru, São Paulo, Brazil.
Forensic Sci Int. 2012 Jun 10;219(1-3):147-50. doi: 10.1016/j.forsciint.2011.12.013. Epub 2012 Jan 16.
Forensic age estimation is an important element of anthropological research, as it produces one of the primary sources of data that researchers use to establish the identity of a person living or the identity of unknown bodily remains. The aim of this study was to determine if the chronology of third molar mineralization could be an accurate indicator of estimated age in a sample Brazilian population. If so, mineralization could determine the probability of an individual being 18 years or older. The study evaluated 407 panoramic radiographs of males and females from the past 5 years in order to assess the mineralization status of the mandibular third molars. The evaluation was carried out using an adaptation of Demirjian's system. The results indicated a strong correlation between chronological age and the mineralization of the mandibular third molars. The results indicated that modern Brazilian generation tends to demonstrate an earlier mandibular third molar mineralization than older Brazilian generation and people of other nationalities. Males reached developmental stages slightly earlier than females, but statistically significant differences between the sex were not found. The probability that an individual with third molar mineralization stage H had reached an age of 18 years or older was 96.8-98.6% for males and females, respectively.
法医年龄估计是人类学研究的一个重要组成部分，因为它提供了研究人员用来确定生活中个人身份或未知遗体身份的主要数据来源之一。本研究旨在确定第三磨牙矿化的时间顺序是否可以作为巴西人群样本中估计年龄的准确指标。如果是这样，矿化程度可以确定一个人是否年满 18 岁的概率。该研究评估了过去 5 年中 407 名男性和女性的全景 X 光片，以评估下颌第三磨牙的矿化状况。评估使用了 Demirjian 系统的改编版进行。结果表明，年龄与下颌第三磨牙矿化之间存在很强的相关性。结果表明，现代巴西一代比老一代巴西人和其他国家的人更早地表现出下颌第三磨牙矿化。男性的发育阶段略早于女性，但在性别之间没有发现统计学上的显著差异。对于男性和女性，第三磨牙矿化阶段 H 的个体达到 18 岁或以上的概率分别为 96.8-98.6%。
