Institute of Legal Medicine, Charité-Universitätsmedizin Berlin, Turmstrasse 21, 10559, Berlin, Germany.
Int J Legal Med. 2010 Sep;124(5):445-8. doi: 10.1007/s00414-010-0488-7. Epub 2010 Jul 11.
The main criterion for dental age estimation in living individuals is the mineralisation of third molars. However, the mineralisation of third molars can be completed before the forensically relevant age of 18 years has been attained. In a material of 1,198 orthopantomograms from 629 females and 569 males aged between 15 and 40 years, the radiographic visibility of the periodontal membrane of fully mineralised third molars was assessed according to stages 0, 1, 2 and 3. Stage 0 first appeared at the age of 17.2 years in females and at the age of 17.6 years in males. Stage 1 was first achieved by females between 18.9 and 20.0 years and by males between 20.1 and 20.2 years. The earliest appearance of stage 2 was between 22.5 and 23.1 years in females and at 22.3 years in males. The occurrence of stage 3 was first found between 24.6 and 25.2 years in females and between 25.4 and 26.2 years in males. If stage 1 is determined, it is, therefore, possible to prove that an individual has already attained the legally relevant age of 18 years. For stages 2 and 3, it can be stated beyond reasonable doubt that a person is over 21 years of age.
在活体个体中，牙齿年龄估计的主要标准是第三磨牙的矿化程度。然而，第三磨牙的矿化可能在法医学上相关的 18 岁年龄之前完成。在一个由 629 名女性和 569 名年龄在 15 至 40 岁之间的个体的 1198 张全景片组成的材料中，根据 0、1、2 和 3 阶段评估了完全矿化的第三磨牙牙周膜的放射可见度。阶段 0 首次出现在女性 17.2 岁和男性 17.6 岁时。女性在 18.9 至 20.0 岁之间首次达到 1 期，男性在 20.1 至 20.2 岁之间首次达到 1 期。女性最早出现 2 期的年龄为 22.5 至 23.1 岁，男性为 22.3 岁。女性最早出现 3 期的年龄为 24.6 至 25.2 岁，男性为 25.4 至 26.2 岁。如果确定了 1 期，就可以证明个体已经达到了法律上相关的 18 岁年龄。对于 2 期和 3 期，可以毫无疑问地确定一个人已经超过 21 岁。
