Brief communication: Variation in the frequency and form of the lower permanent molar middle trigonid crest

• Published in: American Journal of Physical Anthropology
• Main Authors: Wu, Liu, Turner, Christy G.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1993
• Subjects: eskimo*
• Online Access: http://dx.doi.org/10.1002/ajpa.1330910210; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fajpa.1330910210; https://onlinelibrary.wiley.com/doi/pdf/10.1002/ajpa.1330910210

Abstract The frequency and form of the middle trigonid crest (MTC) in lower permanent molars is reported for 1,131 dental casts of Bushman (San), Bantu, Solomons, Hawaiians, Pima, Eskimo, Navajo, Chinese, and American whites. The MTC occurs most often on the first molar. We found very little intra‐trait variation, so observations were scored on a present‐absent basis. The MTC is most frequent in the African samples and rare in those of the other populations. Two reference plaques can be obtained to add to the existing series in the ASU dental anthropology system. © 1993 Wiley‐Liss, Inc.