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目的:通过对西安半坡出土6000年前新石器时期人颌骨的相关研究,了解该时期人的牙弓特征。方法:选取保存较完整的上颌骨94个,下颌骨98个。对牙弓进行三维测量,并对牙弓形态进行观测。结果:报告了该批次标本上下颌牙弓形态的各项测量数据及非测量性状的观测结果。牙弓形态主要以椭圆形为主,Terra牙列指数分析上下牙弓均大于现代人,上颌牙弓宽度变化更为明显。结论:为进一步研究人类颌骨演化积累数据资料。
OBJECTIVE: To understand the characteristics of human dental arch during the Neolithic period from the discovery of the man-made jaw bone in Neolithic Age of Banpo of Xi’an in 6000 years ago. Methods: 94 well-preserved maxilla and 98 mandible were selected. Three-dimensional measurement of dental arch, and dental arch morphology was observed. Results: The measurement results of the dental arch morphology of the upper and lower jaws of the batch and the observation of non-measured traits were reported. The shape of the dental arch was dominated by oval. The maxillary and maxillary dental arch of the Terra dentition index was greater than that of the modern people. The width of the arch of the maxillary arch was more obvious. Conclusions: Data for further study of human jaw evolution.