Deciduous dental morphology of the prehistoric Jomon people of Japan: Comparison of nonmetric characters
Article first published online: 27 APR 2005
Copyright © 1995 Wiley-Liss, Inc., A Wiley Company
American Journal of Physical Anthropology
Volume 97, Issue 2, pages 101–111, June 1995
How to Cite
Kitagawa, Y., Manabe, Y., Oyamada, J. and Rokutanda, A. (1995), Deciduous dental morphology of the prehistoric Jomon people of Japan: Comparison of nonmetric characters. Am. J. Phys. Anthropol., 97: 101–111. doi: 10.1002/ajpa.1330970203
- Issue published online: 27 APR 2005
- Article first published online: 27 APR 2005
- Manuscript Accepted: 28 DEC 1994
- Manuscript Received: 28 JUN 1993
- Dental anthropology;
- Deciduous teeth;
- Nonmetric trait
Morphological variations of the deciduous dentition are as useful as those of the permanent dentition for determining the biological affinities of human populations. This paper provides material on morphological variations of deciduous teeth of the prehistoric Japanese population from the Late and the Latest Jomon Period (ca. 2000–ca. 300 B.C.).
The expression of nonmetric traits of the deciduous teeth in the Jomon sample shows a closer affinity with modern Japanese and Native American samples than with American White, Asiatic Indian, and African samples. However, the frequency of shoveling in deciduous upper incisors in the Jomon sample is lower than those in modern Japanese and Native American samples. The Jomon sample also expresses a much higher frequency of cusp 6 in deciduous lower second molars than seen in modern Japanese, Ainu, and Native American samples. The frequency in the Jomon sample is equal to that in the Australian Aboriginal sample, which shows cusp 6 most frequently among the samples compared.
A somewhat low incidence of incisor shoveling in the Jomon sample was also reported in the permanent dentition (Turner  Science 193:911–913,  Am. J. Phys. Anthropol. 51:619–635,  Am. J. Phys. Anthropol. 73:305–321,  Am. J. Phys. Anthropol. 82:295–317; T. Hanihara  Am. J. Phys. Anthropol. 88:163–182, 88:183–196). However, the frequency of cusp 6 in the Jomon sample shows no significant difference from those of Northeast Asian or Native American samples in the permanent dentition (Turner  Am. J. Phys. Anthropol. 73:305–321; T. Hanihara  Am. J. Phys. Anthropol. 88:1–182, 88:183–196). Evidently, some nonmetric traits express an inter-group difference only in the deciduous dentition. © 1995 Wiley-Liss, Inc.