宝鸡、华县新石器时代人骨的错畸形

本文选宝鸡、华县发掘的新石器时代人骨中牙列较完整的颌骨标本进行观察及测量,以了解我国新石器时代人类中错(牙合)畸形的发病情况。发现在该时期的人类中已可见到多种今天常见的错(牙合)畸形。统计了错(牙合)的发病率,并对一例颜面不对称畸形标本的病理机制和病因进行了分析和讨论。

MALOCCLUSION OF NEOLITHIC HUMAN SKELETONS FROM BAOJI AND HUAXIAN

Malocclusion is one of the most popular oral diseases today. The study of occlusal condition of the ancient people helps acquaint us with the evolution of this disease. The Neolithic Age skeleton remains excavated in Baoji and Huaxian are the earliest ones excavated in batches up to present in China. From them 56 jaw specimens,basically intact, including 25 maxillae and 31 mandibles of 37 adults were selected and studied in order to get some knowledge about malocclusion of Neolithic people in China. On the basis of the material of this paper, some conclusions can be drawn: 1. The malocclusion prevalence of Baoji and Huaxian human in Neolithic Age was 26.3%. This figure is much lower than that of the Chinese today. 2. There were three catogories of malocclusion: malposition of individual teeth, crowding and skeletal discrepancy, among which the second was most common. This is similar to that of people today 3. The asymmetrical face, resulted from the abnormal growth of the mandible, had existed among Neolithic people.