Please use this identifier to cite or link to this item:
Scopus Web of ScienceĀ® Altmetric
Type: Journal article
Title: An odontometric study of the maxillary molars in Australian marsupials. I. The koala (Phascolarctos cinereus).
Author: Ueno, R.
Iimura, A.
Yoshida, S.
Kondo, K.
Sato, I.
Henneberg, M.
Townsend, G.
Citation: Okajimas folia anatomica Japonica, 2010; 86(4):137-141
Publisher: Okajima Foria Anatomica Yaponika Henshubu
Issue Date: 2010
ISSN: 0030-154X
Statement of
Ueno R, Iimura A, Yoshida S, Kondo K, Sato I, Henneberg M, Townsend GC.
Abstract: Crown dimensions of the maxillary molars were measured in the koala (Phascolarctos cinereus). There were no significant differences in crown diameters between the first and second molars, however the fourth molars were reduced in all crown diameters. The third molar was smaller than the first or second molars in buccolingual crown diameters but there were no significant differences in mesiodistal crown diameters. It is proposed that the similar shapes of the first and second molars are associated with similar types of masticatory activity involving these teeth, The shape of the third molar, which is reduced in size buccolingually, may be linked to the koala's occlusal function which is characterized by a condylar action that leads to differences in movement between opposing anterior and posterior molar teeth during the occlusal stroke. The fourth molar, the smallest of the molar teeth in crown diameter, erupts significantly later than the other molars, and its reduction may be explained by the terminal and distal reduction theories. It is proposed that the pattern of molar morphology in the koala is associated with both masticatory activity linked to its characteristic occlusal function, as well as reflecting the sequence of tooth emergence.
Keywords: Maxilla
Tooth Crown
Tooth Eruption
Rights: Copyright (c) 2010 Editorial Board of Okajimas Folia Anatomica Japonica
DOI: 10.2535/ofaj.86.137
Appears in Collections:Aurora harvest
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.