AAS ›› 2014, Vol. 45 ›› Issue (6): 847-849.doi: 10.3969/j.issn.0529-1356.2014.05.020

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Variation in chin form of Chinese population

DAI Cheng-ping LI Hai-jun*   

  1. School of Ethnology and Sociology, Minzu University of China, Beijing 100081,China
  • Received:2014-02-10 Revised:2014-04-06 Online:2012-12-06 Published:2014-12-06
  • Contact: LI Hai-jun E-mail:lihaijunchina@hotmail.com

Abstract:

Objective To understand the variation in the chin form of Chinese population. Methods This study was conducted on 364 human mandibles from China. Chin form is divided into 3 types: straight, round and protruding, and comparisons were made among different time periods. Results The “round” and “straight” were the two main chin forms in Neolithic age, while most were “Round” in Bronze-Iron age and present. The frequency of “straight” was the highest in Neolithic age, and the lowest in Bronze-Iron age. Conclusion The chin form varies in different time periods, which may be caused partly by the size variation of mandibles.

Key words: Mandible, Chin form, Anatomy, Recent population