The deflecting wrinkle on the teeth of Icelanders and the Mongoloid dental complex

Abstract Three local populations from Northeast Iceland are surveyed for the occurrence of the deflecting wrinkle of the metaconid on second deciduous and first permanent lower molars. The trait occurs more frequently on dm2 than on M1, and no sexual dimorphism is found, as expected. However, the fr...

Full description

Bibliographic Details
Published in:American Journal of Physical Anthropology
Main Authors: Axelsson, Gudjón, Kirveskari, Pentti
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1977
Subjects:
Online Access:http://dx.doi.org/10.1002/ajpa.1330470212
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fajpa.1330470212
https://onlinelibrary.wiley.com/doi/pdf/10.1002/ajpa.1330470212
Description
Summary:Abstract Three local populations from Northeast Iceland are surveyed for the occurrence of the deflecting wrinkle of the metaconid on second deciduous and first permanent lower molars. The trait occurs more frequently on dm2 than on M1, and no sexual dimorphism is found, as expected. However, the frequencies are clearly within those predicted by the Mongoloid dental complex for Mongoloid populations. It is therefore suggested that the inclusion of the deflecting wrinkle in the Mongoloid dental complex be re‐evaluated, and the racial diagnostic value of the trait taken with reservation.