来自阿根廷（南美洲）的13个征服前样本恒牙列的双侧不对称性。

Bilateral asymmetry in permanent dentition of 13 pre-conquest samples from Argentina (South America).

作者信息

Bollini G A, Rodríguez-Flórez C D, Colantonio S E

机构信息

Cátedra de Antropología Biológica II, Facultad de Ciencias Naturales, Universidad Nacional de La Plata, Argentina.

出版信息

Homo. 2009;60(2):127-37. doi: 10.1016/j.jchb.2008.05.005. Epub 2008 Dec 21.

DOI:10.1016/j.jchb.2008.05.005

PMID:19105997

Abstract

Bilateral asymmetry is an important field of study in anthropology. The evaluation of bilateral asymmetry of 44 dental non-metric traits of permanent dentition is carried out in this study on 376 adult skulls from different archaeological sites in Argentina (South America). From a total of 44 traits studied, just 12 (27% of the total traits expressed) presented Bilateral Index (BI) values lower than 100% (between 92% and 99%). Results suggest that the expression of all dental traits is probably bilateral. These results show the importance of analysis of bilateral asymmetry for assignment of taxonomic and population value of non-metric dental traits.

摘要

双侧不对称是人类学研究的一个重要领域。本研究对来自阿根廷（南美洲）不同考古遗址的376个成年头骨的恒牙列44个牙齿非计量性状的双侧不对称情况进行了评估。在总共研究的44个性状中，只有12个（占所表达性状总数的27%）的双侧指数（BI）值低于100%（在92%至99%之间）。结果表明，所有牙齿性状的表达可能都是双侧的。这些结果显示了分析双侧不对称对于确定非计量牙齿性状的分类学和群体价值的重要性。