Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/16781
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Size relationships among permanent mandibular molars in Aboriginal Australians and Papua New Guinea highlanders |
Author: | Kondo, S. Townsend, G. Kanazawa, E. |
Citation: | American Journal of Human Biology, 2005; 17(5):622-633 |
Publisher: | Wiley-Liss |
Issue Date: | 2005 |
ISSN: | 1042-0533 1520-6300 |
Statement of Responsibility: | Shintaro Kondo, Grant C. Townsend, and Eisaku Kanazawa |
Abstract: | Size relationships among crown units of permanent mandibular molars were investigated in two Sahul-Pacific samples: Aboriginal Australians (Yuendumu) and Papua New Guinea Highlanders (Wabag). Measurements of first, second, and third molars (M1, M2, and M3), including overall mesiodistal and buccolingual diameters as well as the mesiodistal and buccolingual diameters of the trigonid and talonid, were obtained from dental casts using a sliding caliper. Molar reduction was noted in talonid dimensions within both samples, but the trigonid mesiodistal diameter was not reduced in M2 or M3 compared with M1, indicating that the later-developing crown unit (talonid) was more reduced than the early-developing unit (trigonid). M2 was most reduced in size mesiodistally of the three molars, but its buccolingual diameter was not reduced. M3 was the most reduced tooth in trigonid buccolingual diameter. The percentage sexual dimorphism values were greater for the size of the talonid than for the trigonid, indicating that male values exceeded those for females by a greater amount in the later-developing crown unit. Crown dimensions were larger generally in the Aboriginal Australians from Yuendumu than in the Papua New Guinea Highlanders from Wabag, with differences being more evident in M2 and M3 than M1, especially in talonid dimensions. The trigonid, which develops early both phylogenetically and ontogenetically, tended to be relatively stable in size, whereas the later-forming talonid displayed size reduction when comparisons were made both within and between groups. |
Keywords: | Molar Tooth Crown Humans Anthropometry Data Collection Sex Characteristics Time Factors Australia Papua New Guinea Female Male Native Hawaiian or Other Pacific Islander |
Rights: | Copyright © 2005 Wiley-Liss, Inc. |
DOI: | 10.1002/ajhb.20418 |
Published version: | http://dx.doi.org/10.1002/ajhb.20418 |
Appears in Collections: | Aurora harvest 2 Dentistry publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.