解剖学报

解剖学报 ›› 2013, Vol. 44 ›› Issue (4 ): 554-558.doi: 10.3969/j.issn.0529-1356.2013.04.021

• 人类学 • 上一篇    下一篇

中国古代人群第一臼齿齿冠基底面积与相对齿尖基底面积的对比与分析

周亚威 贺乐天*   

  1. 吉林大学边疆考古研究中心， 长春 130012
  • 收稿日期:2012-11-26 修回日期:2013-02-19 出版日期:2013-08-06 发布日期:2013-09-04
  • 通讯作者: 贺乐天 E-mail:helt12@mails.jlu.edu.cn
  • 基金资助:

    国家社科基金重大项目（11&ZD182）；国家基础科学人才培养基金现代考古学科特殊学科点项目（J0930002）；国家自然科学基金青年科学基金项目（41102015）；吉林大学博士交叉学科科研资助计划（450060483097）

Comparison and analysis of crown and cusp base area of the first molar crown by ancient Chinese crowds

ZHOU Ya-wei HE Le-tian*   

  1. Research Center of Chinese Frontier Archaeology of Jilin University, Changchun 130012, China
  • Received:2012-11-26 Revised:2013-02-19 Online:2013-08-06 Published:2013-09-04

摘要：

目的 通过对5个中国考古遗址中出土的184枚人类上、下颌第1臼齿（M1和M1）的齿冠基底面积和相对齿尖基底面积的测量与分析，探讨不同食性的人群在第1臼齿齿冠面积和相对齿尖基底面积的差异性。方法 运用现代数字图像测量技术对齿冠面积和齿尖面积进行高精度划分
和测量，并运用SPSS 19.0统计学软件对数据进行检测分析。结果 动物性食物摄入较高的人群第1臼齿齿冠基底面积均大于植物性食物为主的人群，差异性检验显示，两组人群在齿冠基底面积上差异显著。两组人群的相对齿尖基底面积非常接近，差异性检验显示，差异不显著。5个考古
遗址所代表的中国古代人群的第1臼齿相对齿尖基底面积的大小顺序表现出一致性，即M1的顺序为原尖>前尖>后尖>次尖，M1的顺序为下原尖>下次尖>后尖>内尖>下次小尖。结论 第1臼齿齿冠基底面积的大小在群体间表现出差异性，第1臼齿相对齿尖基底面积则在群体间表现出一致性。

关键词: 齿冠面积, 齿尖相对基底面积, 食物结构, 形态测量, 古代人群

Abstract:

Objective To explore the differences of crown area of the first molar teeth and relative basal cusp area among the population of different feeding habits by measuring and analyzing crown basal area and relative basal cusp area of M1
and M1 of 184 teeth from five ancient Chinese archaeological sites. Methods High precision classification and measurement were done on crown area and cusp area by using the technology of modern digital image measurement, and data was detected and analyzed
by using spss 19.0. Results The crown area of teeth on M1 of crowds which took in high portion of animal food was obviously larger than crowds which had plant food. The test of heterogeneity indicated that there was significant difference on the crown
area between the two crowds. The relative basal cusp area of the two crowds had extraordinary similarity. The test of heterogeneity indicated no conspicuous difference. The order of the size of the first molar teeth of the ancient people in China which was
represented by five archaeological sites showed consistency, that the relative basal cusp areas exhibited a sequence of protocone> paracone>metacone>hypocone in M1 and protocone>hypoconid>metaconid>entaconid>hypoconulid in M1. Conclusion The size of crown
basal area of the first molar teeth shows diversity between groups, and the size of relative basal cusp area of the first molar teeth shows consistency between the groups.

Key words: Crown basal area, Relative basal cusp area, Food structure, Morphometry, Ancient crowd