Patient-specific finite element analysis of viscoelastic masticatory mucosa
Identifieur interne : 004616 ( Ncbi/Merge ); précédent : 004615; suivant : 004617Patient-specific finite element analysis of viscoelastic masticatory mucosa
Auteurs : Noriyuki Wakabayashi [Japon] ; Tetsuya Suzuki [Japon]Source :
- Journal of Dental Biomechanics [ 1758-7360 ] ; 2013.
Abstract
The purpose of this study was to analyze the stress and strain inside of the oral mucosa in partially-edentulous patients. The patient-specific finite element models of the mucosa and the bone were constructed using the CT images and in-vivo surface measurement during a continuous load. The mean initial shear modulus of 8.3 × 10–5 (GPa) and the mean relaxation time of 503 (s) were determined as the viscoelastic properties of the mucosa. The increase of the highest maximum compressive strain during the continuous loading was observed in all the patients, however; the intensity of strain was not in accordance with the thickness of the mucosa. It is suggested that the variations of the morphology and the initial modulus of the mucosa should be considered in the mathematical approaches to detect the mechanical responses of the oral mucosa.
Url:
DOI: 10.1177/1758736013483298
PubMed: 23580171
PubMed Central: 3619231
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<author><name sortKey="Wakabayashi, Noriyuki" sort="Wakabayashi, Noriyuki" uniqKey="Wakabayashi N" first="Noriyuki" last="Wakabayashi">Noriyuki Wakabayashi</name>
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<author><name sortKey="Suzuki, Tetsuya" sort="Suzuki, Tetsuya" uniqKey="Suzuki T" first="Tetsuya" last="Suzuki">Tetsuya Suzuki</name>
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<front><div type="abstract" xml:lang="en"><p>The purpose of this study was to analyze the stress and strain inside of the oral mucosa in partially-edentulous patients. The patient-specific finite element models of the mucosa and the bone were constructed using the CT images and in-vivo surface measurement during a continuous load. The mean initial shear modulus of 8.3 × 10<sup>–5</sup>
(GPa) and the mean relaxation time of 503 (s) were determined as the viscoelastic properties of the mucosa. The increase of the highest maximum compressive strain during the continuous loading was observed in all the patients, however; the intensity of strain was not in accordance with the thickness of the mucosa. It is suggested that the variations of the morphology and the initial modulus of the mucosa should be considered in the mathematical approaches to detect the mechanical responses of the oral mucosa.</p>
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<front><journal-meta><journal-id journal-id-type="nlm-ta">J Dent Biomech</journal-id>
<journal-id journal-id-type="iso-abbrev">J Dent Biomech</journal-id>
<journal-id journal-id-type="publisher-id">DBM</journal-id>
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<journal-title-group><journal-title>Journal of Dental Biomechanics</journal-title>
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<publisher-loc>Sage UK: London, England</publisher-loc>
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<title-group><article-title>Patient-specific finite element analysis of viscoelastic masticatory mucosa</article-title>
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<contrib-group><contrib contrib-type="author" corresp="yes"><name><surname>Wakabayashi</surname>
<given-names>Noriyuki</given-names>
</name>
<xref ref-type="aff" rid="aff1-1758736013483298">1</xref>
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<contrib contrib-type="author"><name><surname>Suzuki</surname>
<given-names>Tetsuya</given-names>
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<xref ref-type="aff" rid="aff2-1758736013483298">2</xref>
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<aff id="aff1-1758736013483298"><label>1</label>
Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan</aff>
<aff id="aff2-1758736013483298"><label>2</label>
Oral Prosthetic Engineering, School of Oral Health Care Sciences, Faculty of Dentistry, Tokyo Medical and Dental University, Tokyo, Japan</aff>
<author-notes><corresp id="corresp1-1758736013483298">Noriyuki Wakabayashi, Department of Removable Partial Prosthodontics, Graduate School, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo, Tokyo 113-8549, Japan. Email: <email>wakabayashi.rpro@tmd.ac.jp</email>
</corresp>
</author-notes>
<pub-date pub-type="collection"><year>2013</year>
</pub-date>
<pub-date pub-type="epub"><day>4</day>
<month>4</month>
<year>2013</year>
</pub-date>
<volume>4</volume>
<elocation-id>1758736013483298</elocation-id>
<permissions><copyright-statement>© The Author(s) 2013</copyright-statement>
<copyright-year>2013</copyright-year>
<copyright-holder content-type="sage">SAGE Publications</copyright-holder>
<license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/2.0/"><license-p>This is an open-access article distributed under the terms of the Creative
Commons Attribution License, which permits non-commercial use, distribution,
and reproduction in any medium, provided the original work is properly
cited.</license-p>
</license>
</permissions>
<abstract><p>The purpose of this study was to analyze the stress and strain inside of the oral mucosa in partially-edentulous patients. The patient-specific finite element models of the mucosa and the bone were constructed using the CT images and in-vivo surface measurement during a continuous load. The mean initial shear modulus of 8.3 × 10<sup>–5</sup>
(GPa) and the mean relaxation time of 503 (s) were determined as the viscoelastic properties of the mucosa. The increase of the highest maximum compressive strain during the continuous loading was observed in all the patients, however; the intensity of strain was not in accordance with the thickness of the mucosa. It is suggested that the variations of the morphology and the initial modulus of the mucosa should be considered in the mathematical approaches to detect the mechanical responses of the oral mucosa.</p>
</abstract>
<kwd-group><kwd>Mucosa</kwd>
<kwd>viscoelastic</kwd>
<kwd>edentulous</kwd>
<kwd>denture</kwd>
<kwd>finite element</kwd>
<kwd>pain</kwd>
</kwd-group>
</article-meta>
</front>
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<region><li>Région de Kantō</li>
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<name sortKey="Suzuki, Tetsuya" sort="Suzuki, Tetsuya" uniqKey="Suzuki T" first="Tetsuya" last="Suzuki">Tetsuya Suzuki</name>
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