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中国全新世人群颞下颌关节尺寸的时代变化

中国全新世人群颞下颌关节尺寸的时代变化Size Variation of the Temporomandibular Joint of Chinese People During the Holocene
【作者】 李海军; 周亚威; 张全超; 朱泓;
【Author】 LI Hai-jun1* ,ZHOU Ya-wei2,ZHANG Quan-chao2,ZHU Hong2 (1. School of Ethnology and Sociology,Minzu University of China,Beijing 100081; 2. Research Center for Chinese Frontier Archaeology,Jilin University,Changchun 130012)
【机构】 中央民族大学民族学与社会学学院; 吉林大学边疆考古研究中心;
【摘要】 本文通过对中国北方地区新石器时代(54例)、青铜铁器时代(189例)和近代(92例)成年男性颞下颌关节的多项测量项目的对比、分析,对中国全新世人群颞下颌关节测量性状的变异问题进行了研究。结果显示近7000年来颞下颌关节的不同部位在全新世不同阶段有不同的变化特点。髁突、冠突在全新世厚度变薄,髁突的变薄主要在新石器-青铜铁器时代,冠突的变薄主要在青铜铁器-近代。髁突面积在全新世也在缩小,在新石器-青铜铁器时代缩小的幅度更大。髁突顶缘弧度的变平、下颌窝的变浅主要发生在新石器-青铜铁器时代。髁突面积/下颌窝面积,其变化主要发生在青铜铁器时代。这些变化可能与生活环境、食物结构改变、下颌骨与头骨不同的演化速率等有关。

【Abstract】 In order to understand the variation of Holocene Chinese temporomandibular joint morphology,this study has analyzed a number of sample groups including: Neolithic ( n = 54), Bronze-Iron Age ( n = 189) and modern ( n = 92) adult male skulls from northern China. The results of this work indicate that the linear characteristics of these Chinese temporomandibular joint varied throughout the past 7000 years. Condylar processes decreased in size and became thinner and flatter and the mandibular fossa depth decreased especially from the Neolithic to Bronze-Iron Age. Coronoid processes also thinned,especially from the Bronze-Iron Age to the present day. These anatomical variations may be associated with changes in environment or diet.
【关键词】 全新世; 下颌窝; 髁突; 尺寸变化;
【Key words】 Holocene; Mandibular fossa; Condylar process; Size;

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