The vector of jaw muscle force as determined by computer-generated three dimensional simulation: a test of Greaves' model
We present results from a detailed three-dimensional finite element analysis of the cranium and mandible of the Australian dingo (Canis lupus dingo) during a range of feeding activities and compare results with predictions based on two-dimensional methodology [Greaves, W.S., 2000. Location of the ve...
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ftunivnewcastnsw:uon:5356 2023-05-15T15:50:22+02:00 The vector of jaw muscle force as determined by computer-generated three dimensional simulation: a test of Greaves' model Clausen, Philip Wroe, Stephen McHenry, Colin Moreno, Karen Bourke, Jason The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering 2008 http://hdl.handle.net/1959.13/43235 unknown Elsevier Journal of Biomechanics Vol. 41, Issue 15, p. 3184-3188 10.1016/j.jbiomech.2008.08.019 finite element analysis bite force temporomandibular joint journal article 2008 ftunivnewcastnsw 2018-07-27T00:54:47Z We present results from a detailed three-dimensional finite element analysis of the cranium and mandible of the Australian dingo (Canis lupus dingo) during a range of feeding activities and compare results with predictions based on two-dimensional methodology [Greaves, W.S., 2000. Location of the vector of jaw muscle force in mammals. Journal of Morphology 243, 293–299]. Greaves showed that the resultant muscle vector intersects the mandible line slightly posterior to the lower third molar (m3). Our work demonstrates that this is qualitatively correct, although the actual point is closer to the jaw joint. We show that it is theoretically possible for the biting side of the mandible to dislocate during unilateral biting; however, the bite point needs to be posterior to m3. Simulations show that reduced muscle activation on the non-biting side can considerably diminish the likelihood of dislocation with only a minor decrease in bite force during unilateral biting. By modulating muscle recruitment the animal may be able to maximise bite force whilst minimising the risk of dislocation. Article in Journal/Newspaper Canis lupus NOVA: The University of Newcastle Research Online (Australia) |
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NOVA: The University of Newcastle Research Online (Australia) |
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ftunivnewcastnsw |
language |
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topic |
finite element analysis bite force temporomandibular joint |
spellingShingle |
finite element analysis bite force temporomandibular joint Clausen, Philip Wroe, Stephen McHenry, Colin Moreno, Karen Bourke, Jason The vector of jaw muscle force as determined by computer-generated three dimensional simulation: a test of Greaves' model |
topic_facet |
finite element analysis bite force temporomandibular joint |
description |
We present results from a detailed three-dimensional finite element analysis of the cranium and mandible of the Australian dingo (Canis lupus dingo) during a range of feeding activities and compare results with predictions based on two-dimensional methodology [Greaves, W.S., 2000. Location of the vector of jaw muscle force in mammals. Journal of Morphology 243, 293–299]. Greaves showed that the resultant muscle vector intersects the mandible line slightly posterior to the lower third molar (m3). Our work demonstrates that this is qualitatively correct, although the actual point is closer to the jaw joint. We show that it is theoretically possible for the biting side of the mandible to dislocate during unilateral biting; however, the bite point needs to be posterior to m3. Simulations show that reduced muscle activation on the non-biting side can considerably diminish the likelihood of dislocation with only a minor decrease in bite force during unilateral biting. By modulating muscle recruitment the animal may be able to maximise bite force whilst minimising the risk of dislocation. |
author2 |
The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering |
format |
Article in Journal/Newspaper |
author |
Clausen, Philip Wroe, Stephen McHenry, Colin Moreno, Karen Bourke, Jason |
author_facet |
Clausen, Philip Wroe, Stephen McHenry, Colin Moreno, Karen Bourke, Jason |
author_sort |
Clausen, Philip |
title |
The vector of jaw muscle force as determined by computer-generated three dimensional simulation: a test of Greaves' model |
title_short |
The vector of jaw muscle force as determined by computer-generated three dimensional simulation: a test of Greaves' model |
title_full |
The vector of jaw muscle force as determined by computer-generated three dimensional simulation: a test of Greaves' model |
title_fullStr |
The vector of jaw muscle force as determined by computer-generated three dimensional simulation: a test of Greaves' model |
title_full_unstemmed |
The vector of jaw muscle force as determined by computer-generated three dimensional simulation: a test of Greaves' model |
title_sort |
vector of jaw muscle force as determined by computer-generated three dimensional simulation: a test of greaves' model |
publisher |
Elsevier |
publishDate |
2008 |
url |
http://hdl.handle.net/1959.13/43235 |
genre |
Canis lupus |
genre_facet |
Canis lupus |
op_relation |
Journal of Biomechanics Vol. 41, Issue 15, p. 3184-3188 10.1016/j.jbiomech.2008.08.019 |
_version_ |
1766385321456435200 |