Rozkovcova Eva, Dostalova Tatjana, Markova Marie, Broukal Zdenek
Department of Stomatology, 1st Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague 2, Czech Republic.
J Forensic Sci. 2012 Sep;57(5):1323-8. doi: 10.1111/j.1556-4029.2012.02238.x. Epub 2012 Aug 17.
Adolescence is a relatively short period between childhood and adulthood. It is very difficult to determine adulthood based on biological indicators. The third molar may be considered a potential age marker for the period between the ages of 16-21. Our study evaluated a set of 1700 panoramic radiographs of individuals aged between 5 and 21 years. Results confirmed the statistically significant difference in the course of third molars development. The mean deviation for individuals with one third molar agenesis is -0.98 years, for individuals with two third molars agenesis -1.89 years, and with three molars agenesis -3.28 years. Thus, the extent of the deviation is directly proportional to the number of unformed third molars. The calculation of age according to the mean of stages of all third molars could lead to the underestimation of age. No intergender differences were found. Age determination using third molars could be used for forensic purposes.
青春期是童年与成年之间相对较短的时期。基于生物学指标很难确定成年期。第三磨牙可能被视为16至21岁期间的一个潜在年龄标志物。我们的研究评估了一组1700张5至21岁个体的全景X线片。结果证实了第三磨牙发育过程中具有统计学意义的差异。有一颗第三磨牙缺失的个体平均偏差为 -0.98岁，有两颗第三磨牙缺失的个体为 -1.89岁，有三颗第三磨牙缺失的个体为 -3.28岁。因此，偏差程度与未萌出第三磨牙的数量成正比。根据所有第三磨牙阶段的平均值计算年龄可能会导致年龄低估。未发现性别差异。利用第三磨牙确定年龄可用于法医目的。
