TOOTH WEAR AND TOOTH USE IN CERCOPITHECUS AETHIOPS

这是一个使用非人灵长类动物模型的牙齿磨损的纵向研究。 本试验中使用两组动物（绿色猴或长尾猴） 他们已经被饲养在不同的饮食中， 凯斯西储地区的颅面生长和咀嚼功能 大学牙科学院。 基线数据（例如，牙齿印模， SEM显微照片）已经通过NIH博士后收集 奖学金。 将在6周时继续进行牙科印模检查 间隔，并且所得到的复制品将用于定量扫描 牙齿微磨损的电子显微镜分析和立体摄影测量 分析这些动物牙齿磨损的总体速率和形式。 剪切峰、尖点和盆地的微观和宏观变化 将测量形态。 在这个问题上要问的两个主要问题 研究的内容是：牙齿磨损是如何在微观和宏观上发生的 水平，以及牙齿使用如何随着时间的推移而变化， 进展？ 三条证据将为这些问题提供答案 问题：（1）测量的微观和 宏观磨损特征，（2）不同饮食之间的比较 组，和（3）颅面生长，咬合力和骨的信息 通过C.W.R.U.收集的菌株牙科学校的研究。 的 这项定量纵向研究的结果将使我们更清楚地了解 灵长类牙齿功能意义问题的透视 形态学 这项研究还受益于能够将 牙齿磨损的变化与颅面区域的形状变化， 通过从面部和头骨上进行的各种测量表明， 同样的动物主题。

This is a longitudinal study of tooth wear using a nonhuman primate model. Two groups of animals (green monkeys or vervets) are to be used in this study and they are already being raised on different diets for a study of craniofacial growth and masticatory function at the Case Western Reserve University School of Dentistry. Baseline data (e.g., dental impressions, SEM micrographs) have already been collected through an NIH post-doctoral fellowship. Dental impressions will continue to be taken at six-week intervals, and the resultant replicas will be used in quantitative scanning electron microscope analyses of dental microwear and stereophotogrammetric analyses of the overall rate and form of tooth wear in these animals. Microscopic and macroscopic changes in shearing crest, cusp, and basin morphology will be measured. The two major questions to be asked in this study are: how does tooth wear occur at the microscopic and macroscopic levels, and how does tooth use change through time as tooth wear progresses? Three lines of evidence will provide answers to these questions: (1) interrelationships between the measured microscopic and macroscopic wear features, (2) comparisons between the different dietary groups, and (3) information on craniofacial growth, bite force, and bone strain being collected through the C.W.R.U. School of Dentistry study. The results of this quantitative longitudinal study will bring a much clearer perspective to the question of the functional significance of primate tooth morphology. This study also benefits by being able to correlate the changes in tooth wear with the changing shape of the craniofacial region as indicated by a variety of measurements taken from the face and skull of the same animal subjects.