Comparison of the Effect of Three Abutment-implant Connections on Stress Distribution at the Internal Surface of Dental Implants: A Finite Element Analysis
Identifieur interne : 003121 ( Pmc/Curation ); précédent : 003120; suivant : 003122Comparison of the Effect of Three Abutment-implant Connections on Stress Distribution at the Internal Surface of Dental Implants: A Finite Element Analysis
Auteurs : Saeed Raoofi [Iran] ; Maryam Khademi [Iran] ; Reza Amid [Iran] ; Mahdi Kadkhodazadeh [Iran] ; Mohammad Reza Movahhedi [Iran]Source :
- Journal of Dental Research, Dental Clinics, Dental Prospects [ 2008-210X ] ; 2013.
Abstract
Url:
DOI: 10.5681/joddd.2013.021
PubMed: 24082983
PubMed Central: 3779371
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<author><name sortKey="Movahhedi, Mohammad Reza" sort="Movahhedi, Mohammad Reza" uniqKey="Movahhedi M" first="Mohammad Reza" last="Movahhedi">Mohammad Reza Movahhedi</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Comparison of the Effect of Three Abutment-implant Connections on Stress Distribution at the Internal Surface of Dental Implants: A Finite Element Analysis</title>
<author><name sortKey="Raoofi, Saeed" sort="Raoofi, Saeed" uniqKey="Raoofi S" first="Saeed" last="Raoofi">Saeed Raoofi</name>
<affiliation wicri:level="1"><nlm:aff id="A01">Assistant Professor, Department of Periodontics, Faculty of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran</nlm:aff>
<country xml:lang="fr">Iran</country>
<wicri:regionArea>Assistant Professor, Department of Periodontics, Faculty of Dentistry, Shiraz University of Medical Sciences, Shiraz</wicri:regionArea>
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</author>
<author><name sortKey="Khademi, Maryam" sort="Khademi, Maryam" uniqKey="Khademi M" first="Maryam" last="Khademi">Maryam Khademi</name>
<affiliation wicri:level="1"><nlm:aff id="A02">Assistant Professor, Department of Periodontics, Faculty of Dentistry, Ahwaz University of Medical Sciences, Ahwaz, Iran</nlm:aff>
<country xml:lang="fr">Iran</country>
<wicri:regionArea>Assistant Professor, Department of Periodontics, Faculty of Dentistry, Ahwaz University of Medical Sciences, Ahwaz</wicri:regionArea>
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<author><name sortKey="Amid, Reza" sort="Amid, Reza" uniqKey="Amid R" first="Reza" last="Amid">Reza Amid</name>
<affiliation wicri:level="1"><nlm:aff id="A03">Assistant Professor, Department of Periodontics, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran</nlm:aff>
<country xml:lang="fr">Iran</country>
<wicri:regionArea>Assistant Professor, Department of Periodontics, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran</wicri:regionArea>
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<author><name sortKey="Kadkhodazadeh, Mahdi" sort="Kadkhodazadeh, Mahdi" uniqKey="Kadkhodazadeh M" first="Mahdi" last="Kadkhodazadeh">Mahdi Kadkhodazadeh</name>
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<country xml:lang="fr">Iran</country>
<wicri:regionArea>Associate Professor, Department of Periodontics, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran</wicri:regionArea>
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<author><name sortKey="Movahhedi, Mohammad Reza" sort="Movahhedi, Mohammad Reza" uniqKey="Movahhedi M" first="Mohammad Reza" last="Movahhedi">Mohammad Reza Movahhedi</name>
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<series><title level="j">Journal of Dental Research, Dental Clinics, Dental Prospects</title>
<idno type="ISSN">2008-210X</idno>
<idno type="eISSN">2008-2118</idno>
<imprint><date when="2013">2013</date>
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<front><div type="abstract" xml:lang="en"><p><bold><italic>Background and aims.</italic>
</bold>
The aim of this study was to determine the stress patterns within an implant and the effect of different types of connections on load transfer.
</p>
<p><bold><italic>Materials and methods.</italic>
</bold>
Three different types of implant-abutment connections were selected for this study. Sample A: 1.5-mm deep internal hex corresponding to a lead-in bevel; sample B: a tri-channel internal connection; and sample C: in-ternal Morse taper with 110 degrees of tapering and 6 anti-rotational grooves. Four types of loading conditions were simu-lated in a finite element model, with the maximum von Mises stress set as output variables.
</p>
<p><bold><italic>Results.</italic>
</bold>
The maximum stress concentration at the inner surface of the fixtures was higher than the stress value in bone in all of the samples. Stress values in sample B were the lowest amongst all of the models. Any alterations in the amount and direction of the 100-N axial load resulted in an increase in fixture surfaces stress. Overall, the highest amount of stress (112 MPa) was detected in sample C at the inner surface of the fixture under a non-axial load of 300 N.
</p>
<p><bold><italic>Conclusion.</italic>
</bold>
Stress concentration decreased when the internal surface area increased. Creating three or six stops in the internal surface of the fixtures resulted in a decrease in stress.
</p>
</div>
</front>
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<pmc article-type="research-article"><pmc-dir>properties open_access</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-ta">J Dent Res Dent Clin Dent Prospects</journal-id>
<journal-id journal-id-type="iso-abbrev">J Dent Res Dent Clin Dent Prospects</journal-id>
<journal-id journal-id-type="publisher-id">Journal of Dental Research, Dental Clinics, Dental Prospects</journal-id>
<journal-title-group><journal-title>Journal of Dental Research, Dental Clinics, Dental Prospects</journal-title>
</journal-title-group>
<issn pub-type="ppub">2008-210X</issn>
<issn pub-type="epub">2008-2118</issn>
<publisher><publisher-name>Tabriz University of Medical Sciences</publisher-name>
</publisher>
</journal-meta>
<article-meta><article-id pub-id-type="pmid">24082983</article-id>
<article-id pub-id-type="pmc">3779371</article-id>
<article-id pub-id-type="doi">10.5681/joddd.2013.021</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Original Article</subject>
</subj-group>
</article-categories>
<title-group><article-title>Comparison of the Effect of Three Abutment-implant Connections on Stress Distribution at the Internal Surface of Dental Implants: A Finite Element Analysis</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>Raoofi</surname>
<given-names>Saeed</given-names>
</name>
<xref ref-type="aff" rid="A01"><sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Khademi</surname>
<given-names>Maryam</given-names>
</name>
<xref ref-type="aff" rid="A02"><sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Amid</surname>
<given-names>Reza</given-names>
</name>
<xref ref-type="aff" rid="A03"><sup>3</sup>
</xref>
<xref rid="COR1" ref-type="corresp">*</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Kadkhodazadeh</surname>
<given-names>Mahdi</given-names>
</name>
<xref ref-type="aff" rid="A04"><sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Movahhedi</surname>
<given-names>Mohammad Reza</given-names>
</name>
<xref ref-type="aff" rid="A05"><sup>5</sup>
</xref>
</contrib>
</contrib-group>
<aff id="A01"><sup>1</sup>
Assistant Professor, Department of Periodontics, Faculty of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran</aff>
<aff id="A02"><sup>2</sup>
Assistant Professor, Department of Periodontics, Faculty of Dentistry, Ahwaz University of Medical Sciences, Ahwaz, Iran</aff>
<aff id="A03"><sup>3</sup>
Assistant Professor, Department of Periodontics, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran</aff>
<aff id="A04"><sup>4</sup>
Associate Professor, Department of Periodontics, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran</aff>
<aff id="A05"><sup>5</sup>
PhD, Department of Industrial Manufacturing, Sharif University of Technology, Tehran, Iran</aff>
<author-notes><corresp id="COR1"><label>*</label>
*Corresponding Author; <email>Reza_amid@yahoo.com</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub"><season>Summer</season>
<year>2013</year>
</pub-date>
<pub-date pub-type="epub"><day>30</day>
<month>8</month>
<year>2013</year>
</pub-date>
<volume>7</volume>
<issue>3</issue>
<fpage>132</fpage>
<lpage>139</lpage>
<history><date date-type="received"><day>13</day>
<month>8</month>
<year>2012</year>
</date>
<date date-type="accepted"><day>12</day>
<month>3</month>
<year>2013</year>
</date>
</history>
<permissions><copyright-statement>© 2012 The Authors; Tabriz University of Medical Sciences</copyright-statement>
<copyright-year>2013</copyright-year>
<license xlink:href="http://creativecommons.org/licenses/by/3.0/" license-type="open-access"><license-p><pmc-comment>CREATIVE COMMONS</pmc-comment>
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/3.0">http://creativecommons.org/licenses/by/3.0</ext-link>
), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</license-p>
</license>
</permissions>
<self-uri xlink:type="simple" xlink:href="http://dentistry.tbzmed.ac.ir/jpid">This article is available from: http://dentistry.tbzmed.ac.ir/joddd</self-uri>
<abstract><p><bold><italic>Background and aims.</italic>
</bold>
The aim of this study was to determine the stress patterns within an implant and the effect of different types of connections on load transfer.
</p>
<p><bold><italic>Materials and methods.</italic>
</bold>
Three different types of implant-abutment connections were selected for this study. Sample A: 1.5-mm deep internal hex corresponding to a lead-in bevel; sample B: a tri-channel internal connection; and sample C: in-ternal Morse taper with 110 degrees of tapering and 6 anti-rotational grooves. Four types of loading conditions were simu-lated in a finite element model, with the maximum von Mises stress set as output variables.
</p>
<p><bold><italic>Results.</italic>
</bold>
The maximum stress concentration at the inner surface of the fixtures was higher than the stress value in bone in all of the samples. Stress values in sample B were the lowest amongst all of the models. Any alterations in the amount and direction of the 100-N axial load resulted in an increase in fixture surfaces stress. Overall, the highest amount of stress (112 MPa) was detected in sample C at the inner surface of the fixture under a non-axial load of 300 N.
</p>
<p><bold><italic>Conclusion.</italic>
</bold>
Stress concentration decreased when the internal surface area increased. Creating three or six stops in the internal surface of the fixtures resulted in a decrease in stress.
</p>
</abstract>
<kwd-group><kwd>Biomechanics</kwd>
<kwd>dental implant/abutment</kwd>
<kwd>finite element</kwd>
<kwd>stress</kwd>
</kwd-group>
</article-meta>
</front>
</pmc>
</record>
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