一、前言本文将从牙齿的形态来研究山东省即墨北阡遗址出土的大汶口文化人(以下简称北阡人)。牙齿在人生的早期即已形成,且不容易受到其后的营养状态或环境等因素影响。因此,牙齿的形态在探究遗传信息上,是非常有用的工具。只是,一旦牙齿生长完成,就会开始受到咬耗、蛀蚀或人为加工等影响,若是这些因素所造成的影响非常剧烈,那么想从牙齿形态中得知遗传信息,就会变得比较困难。但另一方面,从牙齿的咬耗与蛀蚀,可以得知这个人所吃的食物,这点可以成为研究生活环境的线索;而人为加工的痕 I. Introduction This article will study the morphology of teeth from Dawenkou Culture People (hereinafter referred to as North Qian people) unearthed in the site of the North Qian of Jimo, Shandong Province. Teeth in the early life has been formed, and not easily affected by subsequent nutritional status or the environment and other factors. Therefore, the form of teeth in the study of genetic information, is a very useful tool. However, once the growth of the tooth is completed, it will begin to suffer from biting, decaying or artificial processing. If the impact of these factors is very dramatic, it will be more difficult to obtain the genetic information from the tooth form. On the other hand, from the biting and decaying of the teeth, it can be learned that the food eaten by this person can become a clue to the study of the living environment; and artificially processed marks