Stein T J, Corcoran J F
Endodontics Department, Veterans Administration Medical Center, Ann Arbor, MI 48105.
Oral Surg Oral Med Oral Pathol. 1994 Mar;77(3):266-70. doi: 10.1016/0030-4220(94)90297-6.
The purpose of this article is to ascertain if pararadicular cementum can be used as a reliable criterion for age estimation in human beings. Fifty-two nonrestorable teeth were extracted from 42 patients at the Veterans Administration Medical Center at Ann Arbor, Mich. The specimens were prepared to a thickness of 500 microns with a Buehler Isomet bone saw (Bronwell Scientific, Inc., Rochester, N.Y.). Longitudinal sections were cleaned of artifacts in an ultrasonic cleaner and stained with 1% alizarin red. Photomicrographs were taken of each prepared section. The cementum was composed of multiple light and dark bands that were counted on the photograph and added to the average eruption time of the individual tooth. There was an overall Pearson's product-moment correlation coefficient of r = 0.93 between the patient's predicted age with the use of cementum annulations as compared with the actual chronologic age of the person. Predicted age counts showed greater divergence from actual age in persons older than 55 years. A formula is presented to adjust for this discrepancy. The data indicate that quantitation of cementum annuli is a moderately reliable means for age estimation in humans.
本文的目的是确定牙根周牙骨质是否可作为人类年龄估计的可靠标准。从密歇根州安阿伯市退伍军人管理局医疗中心的42名患者中拔除了52颗无法修复的牙齿。使用Buehler Isomet骨锯（Bronwell Scientific公司，纽约州罗切斯特）将标本制备至500微米厚。纵向切片在超声波清洗器中清除杂质，并用1%茜素红染色。对每个制备好的切片拍摄显微照片。牙骨质由多条明暗带组成，在照片上对其进行计数，并加上单个牙齿的平均萌出时间。使用牙骨质年轮预测的患者年龄与实际年龄之间的总体皮尔逊积矩相关系数r = 0.93。在55岁以上的人群中，预测年龄计数与实际年龄的差异更大。给出了一个公式来校正这种差异。数据表明，牙骨质年轮的定量分析是一种中等可靠的人类年龄估计方法。
