dc.contributor.advisor |
Pullan, Andrew |
en |
dc.contributor.advisor |
Anderson, Iain |
en |
dc.contributor.author |
Essen, Nina Van |
en |
dc.date.accessioned |
2020-06-02T04:37:39Z |
en |
dc.date.available |
2020-06-02T04:37:39Z |
en |
dc.date.issued |
2006 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/51100 |
en |
dc.description |
Full text is available to authenticated members of The University of Auckland only. |
en |
dc.description.abstract |
The human masticatory system consists of a complex arrangement of bones, teeth, muscles and joints that allow us to perform the task of breaking down food in preparation for swallowing. The process of mastication involves various types of motions, which requires that the jaw joint be able to move with six degrees of freedom. The masticatory system is prone to dysfunction, particularly in the regions of the teeth and jaw joints, with the causes of such dysfunction often unknown. If our understanding of masticatory system function could be improved then it may be possible to better predict the causes of dysfunction and also improve the treatments available. One method for studying masticatory system function is to create anatomically based computational models of the jaw components and use these models to simulate mastication. Calculating the stresses and deformations occurring in the various components of the jaw as it is moved and loaded may provide insights into the causes of dysfunction. We present here the creation of an extensible mathematical modelling framework of the masticatory system that can be used as a foundation for the creation of a model_ that is capable of fully simulating masticatory system function. Three key requirements of the modelling framework are identified that ensure extensibility. These requirements cover creation of anatomical models of all the relevant components, experimental gathering of kinematical data of jaw motion, and testing of the ability of the model to calculate deformations and stresses of the bones and articular disc of the jaw joint, utilising the finite element method to solve the governing equations of mechanics. Anatomical models of the bones, teeth, muscles and joints related to mastication have been created, as per the modelling framework requirements. Kinematical data of jaw motion have also been gathered experimentally using motion capture techniques. Two mechanical simulations using the anatomical models have been carried out. The first was a clenching simulation involving the mandibular bone model only, calculating the deformation and stress of this bone when subject to muscle forces. The second involved the mandible and jaw joint models in a simulation of jaw opening, calculating the deformations and stresses of the articular disc of the joint. The results of both these simulations indicate that the model framework is capable of fulfilling the three key requirements and, as such, is suitable as a foundation on which to carry out further research towards the overall goal of creating a computational model that can simulate masticatory system function fully. |
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dc.publisher |
ResearchSpace@Auckland |
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dc.relation.ispartof |
PhD Thesis - University of Auckland |
en |
dc.relation.isreferencedby |
UoA99169364714002091 |
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dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. |
en |
dc.rights |
Restricted Item. Full text is available to authenticated members of The University of Auckland only. |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.title |
Anatomically based modelling of the human masticatory system |
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dc.type |
Thesis |
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thesis.degree.discipline |
Bioengineering |
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thesis.degree.grantor |
The University of Auckland |
en |
thesis.degree.level |
Doctoral |
en |
thesis.degree.name |
PhD |
en |
dc.rights.holder |
Copyright: The author |
en |
dc.identifier.wikidata |
Q112868043 |
|