牙骨质环计数为猕猴（灵长目，类人猿亚目）的年龄测定提供了一种方法。

Cementum annulus counts provide a means for age determination in Macaca mulatta (primates, anthropoidea).

作者信息

Kay R F, Rasmussen D T, Beard K C

出版信息

Folia Primatol (Basel). 1984;42(2):85-95. doi: 10.1159/000156152.

Abstract

14 teeth of 8 rhesus macaques (Macaca mulatta) of known age were analyzed to assess the usefulness of cementum annuli counts as a means of estimating chronological age. Methods used were histological examination of stained thin sections by light microscopy, and examination of polished and etched epoxy-embedded sections by scanning electron microscopy. In 11 of 14 cases, the known chronological ages of the individuals fell within the predicted age ranges based on cementum annuli counts; in 2 other cases, it fell within half a year of the ranges. Cementum annulus counts can provide valuable information about the age of primates living in semitropical environments. This is the most accurate method for aging skeletally adult primates that has yet been tested on animals of known age.

摘要

对8只已知年龄的恒河猴（猕猴）的14颗牙齿进行分析，以评估牙骨质年轮计数作为估计实际年龄方法的有效性。采用的方法包括通过光学显微镜对染色薄片进行组织学检查，以及通过扫描电子显微镜对抛光和蚀刻的环氧树脂包埋切片进行检查。在14个案例中的11个案例中，个体的已知实际年龄落在基于牙骨质年轮计数预测的年龄范围内；在另外2个案例中，其落在该范围的半年之内。牙骨质年轮计数可以提供有关生活在亚热带环境中的灵长类动物年龄的有价值信息。这是迄今为止在已知年龄的动物身上测试过的用于确定骨骼成熟灵长类动物年龄的最准确方法。