Effects of gape and tooth position on bite force and skull stress in the dingo (Canis lupus dingo) using a 3-dimensional finite element approach.
Models of the mammalian jaw have predicted that bite force is intimately linked to jaw gape and to tooth position. Despite widespread use, few empirical studies have provided evidence to validate these models in non-human mammals and none have considered the influence of gape angle on the distributi...
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ftdoajarticles:oai:doaj.org/article:30b52751e25c4c1ba9285a23d2ffaf0e 2023-05-15T15:49:39+02:00 Effects of gape and tooth position on bite force and skull stress in the dingo (Canis lupus dingo) using a 3-dimensional finite element approach. Jason Bourke Stephen Wroe Karen Moreno Colin McHenry Philip Clausen 2008-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0002200 https://doaj.org/article/30b52751e25c4c1ba9285a23d2ffaf0e EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC2376057?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0002200 https://doaj.org/article/30b52751e25c4c1ba9285a23d2ffaf0e PLoS ONE, Vol 3, Iss 5, p e2200 (2008) Medicine R Science Q article 2008 ftdoajarticles https://doi.org/10.1371/journal.pone.0002200 2022-12-31T00:02:47Z Models of the mammalian jaw have predicted that bite force is intimately linked to jaw gape and to tooth position. Despite widespread use, few empirical studies have provided evidence to validate these models in non-human mammals and none have considered the influence of gape angle on the distribution of stress. Here using a multi-property finite element (FE) model of Canis lupus dingo, we examined the influence of gape angle and bite point on both bite force and cranial stress. Bite force data in relation to jaw gape and along the tooth row, are in broad agreement with previously reported results. However stress data showed that the skull of C. l. dingo is mechanically suited to withstand stresses at wide gapes; a result that agreed well with previously held views regarding carnivoran evolution. Stress data, combined with bite force information, suggested that there is an optimal bite angle of between 25 degrees and 35 degrees in C. l. dingo. The function of these rather small bite angles remains unclear. Article in Journal/Newspaper Canis lupus Directory of Open Access Journals: DOAJ Articles PLoS ONE 3 5 e2200 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Jason Bourke Stephen Wroe Karen Moreno Colin McHenry Philip Clausen Effects of gape and tooth position on bite force and skull stress in the dingo (Canis lupus dingo) using a 3-dimensional finite element approach. |
topic_facet |
Medicine R Science Q |
description |
Models of the mammalian jaw have predicted that bite force is intimately linked to jaw gape and to tooth position. Despite widespread use, few empirical studies have provided evidence to validate these models in non-human mammals and none have considered the influence of gape angle on the distribution of stress. Here using a multi-property finite element (FE) model of Canis lupus dingo, we examined the influence of gape angle and bite point on both bite force and cranial stress. Bite force data in relation to jaw gape and along the tooth row, are in broad agreement with previously reported results. However stress data showed that the skull of C. l. dingo is mechanically suited to withstand stresses at wide gapes; a result that agreed well with previously held views regarding carnivoran evolution. Stress data, combined with bite force information, suggested that there is an optimal bite angle of between 25 degrees and 35 degrees in C. l. dingo. The function of these rather small bite angles remains unclear. |
format |
Article in Journal/Newspaper |
author |
Jason Bourke Stephen Wroe Karen Moreno Colin McHenry Philip Clausen |
author_facet |
Jason Bourke Stephen Wroe Karen Moreno Colin McHenry Philip Clausen |
author_sort |
Jason Bourke |
title |
Effects of gape and tooth position on bite force and skull stress in the dingo (Canis lupus dingo) using a 3-dimensional finite element approach. |
title_short |
Effects of gape and tooth position on bite force and skull stress in the dingo (Canis lupus dingo) using a 3-dimensional finite element approach. |
title_full |
Effects of gape and tooth position on bite force and skull stress in the dingo (Canis lupus dingo) using a 3-dimensional finite element approach. |
title_fullStr |
Effects of gape and tooth position on bite force and skull stress in the dingo (Canis lupus dingo) using a 3-dimensional finite element approach. |
title_full_unstemmed |
Effects of gape and tooth position on bite force and skull stress in the dingo (Canis lupus dingo) using a 3-dimensional finite element approach. |
title_sort |
effects of gape and tooth position on bite force and skull stress in the dingo (canis lupus dingo) using a 3-dimensional finite element approach. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2008 |
url |
https://doi.org/10.1371/journal.pone.0002200 https://doaj.org/article/30b52751e25c4c1ba9285a23d2ffaf0e |
genre |
Canis lupus |
genre_facet |
Canis lupus |
op_source |
PLoS ONE, Vol 3, Iss 5, p e2200 (2008) |
op_relation |
http://europepmc.org/articles/PMC2376057?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0002200 https://doaj.org/article/30b52751e25c4c1ba9285a23d2ffaf0e |
op_doi |
https://doi.org/10.1371/journal.pone.0002200 |
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PLoS ONE |
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3 |
container_issue |
5 |
container_start_page |
e2200 |
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1766384686432518144 |