江苏圩墩新石器时代遗址,经3次发掘共得上、下颌骨基本保持完好115例个体。经专家鉴定已明确各个体性别与年龄。在对这批标本观察中,发现许多个体皆有生前同侧中切牙与侧切牙组合缺失的共同规律及其他齿种缺牙情况。本文就此现象进行了研究。方法与结果 1、大体观察:在少儿组上下颌骨中没有生前缺齿发现。生前缺齿的依据是:在标本牙列中该解剖形态的 Neolithic sites in Xudian, Jiangsu Province have been excavated three times and the mandibles have remained fairly intact in 115 cases. The experts have identified the individual sex and age. In the observation of these specimens, we found that many individuals have the common law of missing the combination of the same incisal midline incisors and lateral incisors and other teeth missing teeth. This article has carried on the research to this phenomenon. Methods and Results 1, the general observation: no children in the mandibular denture was found before birth. The basis of an anterior tooth loss is: The anatomy of the dentition in the specimen