Cameriere R, Pacifici A, Viva S, Carbone D, Pacifici L, Polimeni A
AgEstimation Project, Institute of Legal Medicine, University of Macerata, Macerata, Italy -
Minerva Stomatol. 2014 Sep;63(9):283-94.
The discovery of reliable means to determine the age of an individual is a fundamental objective in forensic medicine, in consideration of the constant increase of illegal immigration into the European community. In 2008 Cameriere et al. developed a method based on the relationship between age and the third molar index (I3m), which assesses the degree of maturation of the third molar through measurements made on orthopantomography. The purpose of this work was to test the accuracy of Cameriere's cut-off for I3m as a tool to assess full age (18) on a new sample of living subjects.
Orthopantomographs of 287 Italian living subjects aged between 13 and 22 years have been randomly selected and included in the study. Identification number, gender, date of birth and date of execution of the radiograph were recorded for each patient on a Microsoft Excel® spreadsheet. Radiographs were digitalized and analyzed using a computerized image-processing program (Adobe® Photoshop® CS4).
The results show that the sensitivity of the test was 84.1% and the specificity was 92.5%. The estimated post-test probability was 90.1%, with a confidence interval of 95% (83.6%, 95.2%). Thus, the probability that a person being positive to the test has 18 or more years of age was 90.1%.
The results highlight the contribution of Cameriere's cut-off value for the I3m in the assessment of full age, always remembering that the simultaneous employment of previously introduced complementary methods is essential for the purpose.
鉴于非法移民进入欧洲共同体的情况不断增加，发现确定个人年龄的可靠方法是法医学的一项基本目标。2008年，卡梅里埃等人基于年龄与第三磨牙指数（I3m）之间的关系开发了一种方法，该方法通过在曲面断层片上进行测量来评估第三磨牙的成熟程度。这项工作的目的是在一组新的活体受试者样本上，测试卡梅里埃I3m临界值作为评估法定年龄（18岁）工具的准确性。
随机选取287名年龄在13至22岁之间的意大利活体受试者的曲面断层片纳入研究。在Microsoft Excel®电子表格中为每位患者记录识别号、性别、出生日期和X光片拍摄日期。使用计算机图像处理程序（Adobe® Photoshop® CS4）对X光片进行数字化处理和分析。
结果显示，该测试的灵敏度为84.1%，特异性为92.5%。估计的检验后概率为90.1%，95%的置信区间为（83.6%，95.2%）。因此，检测呈阳性的人年龄为18岁或以上的概率为90.1%。
结果突出了卡梅里埃I3m临界值在评估法定年龄方面的作用，始终要记住，为实现这一目的，同时采用先前引入的补充方法至关重要。
