Ohtani S
Department of Forensic Medicine, Kanagawa Dental College, Japan.
Forensic Sci Int. 1994 Sep 16;68(2):77-82. doi: 10.1016/0379-0738(94)90305-0.
In forensic dental medicine, one of the most important endeavors is the estimation of age. We have studied the method of age assessment using the D/L ratio of aspartic acid from the dentin. The age of deciduous teeth has been estimated by measuring the racemization reaction of this amino acid. The results of the present study indicated that the measured D/L ratio for the dentin of deciduous teeth was highly correlated with the real age (r = 0.824 - 0.981 (sigma = +/- 0.5 to +/- 1.3). These results indicate that age can be accurately estimated from the dentin of deciduous teeth, as it can when permanent teeth are used, and that the D/L ratio is more highly correlated with age than is the eruption time of permanent teeth.
在法医牙科学中，最重要的工作之一是年龄估计。我们研究了利用牙本质中天冬氨酸的D/L比值进行年龄评估的方法。通过测量这种氨基酸的消旋反应来估计乳牙的年龄。本研究结果表明，乳牙牙本质的测量D/L比值与实际年龄高度相关（r = 0.824 - 0.981（标准差 = ±0.5至±1.3）。这些结果表明，与使用恒牙时一样，可以从乳牙牙本质中准确估计年龄，并且D/L比值与年龄的相关性比恒牙萌出时间与年龄的相关性更高。
