3D Finite Element Study on: Bar Splinted Implants Supporting Partial Denture in the Reconstructed Mandible
Identifieur interne : 000953 ( Pmc/Checkpoint ); précédent : 000952; suivant : 0009543D Finite Element Study on: Bar Splinted Implants Supporting Partial Denture in the Reconstructed Mandible
Auteurs : Mohamed El-Anwar ; Rami Ghali ; Mona AboelnaggaSource :
- Open Access Macedonian Journal of Medical Sciences [ 1857-9655 ] ; 2016.
Abstract
This study aimed to estimate the stress patterns induced by the masticatory loads on a removable prosthesis supported and retained by bar splinted implants placed in the reconstructed mandible with two different clip materials and without clip, in the fibula-jaw bone and prosthesis using finite element analysis.
Two 3D finite element models were constructed, that models components were modeled on commercial CAD/CAM software then assembled into finite element package. Vertical loads were applied simulating the masticatory forces unilaterally in the resected site and bilaterally in the central fossa of the lower first molar as 100N (tension and compression). Analysis was based on the assumption full osseointegration between different types of bones, and between implants and fibula while fixing the top surface of the TMJ in place.
The metallic bar connecting the three implants is insensitive to the clips material. Its supporting implants showed typical behavior with maximum stress values at the neck region. Fibula and jaw bone showed stresses within physiologic, while clips material effect seems to be very small due to its relatively small size.
Switching loading force direction from tensile to compression did-not change the stresses and deformations distribution, but reversed their sign from positive to negative.
Url:
DOI: 10.3889/oamjms.2016.027
PubMed: 27275353
PubMed Central: 4884240
Affiliations:
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">3D Finite Element Study on: Bar Splinted Implants Supporting Partial Denture in the Reconstructed Mandible</title>
<author><name sortKey="El Anwar, Mohamed" sort="El Anwar, Mohamed" uniqKey="El Anwar M" first="Mohamed" last="El-Anwar">Mohamed El-Anwar</name>
<affiliation><nlm:aff id="aff1"><italic>National Research Centre, Mechanical Engineering, Giza, Egypt</italic>
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<author><name sortKey="Ghali, Rami" sort="Ghali, Rami" uniqKey="Ghali R" first="Rami" last="Ghali">Rami Ghali</name>
<affiliation><nlm:aff id="aff2"><italic>Faculty of Dentistry, Ain Shams University, Removable Prosthodontics, Cairo, Egypt</italic>
</nlm:aff>
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<author><name sortKey="Aboelnagga, Mona" sort="Aboelnagga, Mona" uniqKey="Aboelnagga M" first="Mona" last="Aboelnagga">Mona Aboelnagga</name>
<affiliation><nlm:aff id="aff2"><italic>Faculty of Dentistry, Ain Shams University, Removable Prosthodontics, Cairo, Egypt</italic>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">3D Finite Element Study on: Bar Splinted Implants Supporting Partial Denture in the Reconstructed Mandible</title>
<author><name sortKey="El Anwar, Mohamed" sort="El Anwar, Mohamed" uniqKey="El Anwar M" first="Mohamed" last="El-Anwar">Mohamed El-Anwar</name>
<affiliation><nlm:aff id="aff1"><italic>National Research Centre, Mechanical Engineering, Giza, Egypt</italic>
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<author><name sortKey="Ghali, Rami" sort="Ghali, Rami" uniqKey="Ghali R" first="Rami" last="Ghali">Rami Ghali</name>
<affiliation><nlm:aff id="aff2"><italic>Faculty of Dentistry, Ain Shams University, Removable Prosthodontics, Cairo, Egypt</italic>
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<author><name sortKey="Aboelnagga, Mona" sort="Aboelnagga, Mona" uniqKey="Aboelnagga M" first="Mona" last="Aboelnagga">Mona Aboelnagga</name>
<affiliation><nlm:aff id="aff2"><italic>Faculty of Dentistry, Ain Shams University, Removable Prosthodontics, Cairo, Egypt</italic>
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<series><title level="j">Open Access Macedonian Journal of Medical Sciences</title>
<idno type="eISSN">1857-9655</idno>
<imprint><date when="2016">2016</date>
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<front><div type="abstract" xml:lang="en"><sec id="st1"><title>AIM:</title>
<p>This study aimed to estimate the stress patterns induced by the masticatory loads on a removable prosthesis supported and retained by bar splinted implants placed in the reconstructed mandible with two different clip materials and without clip, in the fibula-jaw bone and prosthesis using finite element analysis.</p>
</sec>
<sec id="st2"><title>METHODS:</title>
<p>Two 3D finite element models were constructed, that models components were modeled on commercial CAD/CAM software then assembled into finite element package. Vertical loads were applied simulating the masticatory forces unilaterally in the resected site and bilaterally in the central fossa of the lower first molar as 100N (tension and compression). Analysis was based on the assumption full osseointegration between different types of bones, and between implants and fibula while fixing the top surface of the TMJ in place.</p>
</sec>
<sec id="st3"><title>RESULTS:</title>
<p>The metallic bar connecting the three implants is insensitive to the clips material. Its supporting implants showed typical behavior with maximum stress values at the neck region. Fibula and jaw bone showed stresses within physiologic, while clips material effect seems to be very small due to its relatively small size.</p>
</sec>
<sec id="st4"><title>CONCLUSION:</title>
<p>Switching loading force direction from tensile to compression did-not change the stresses and deformations distribution, but reversed their sign from positive to negative.</p>
</sec>
</div>
</front>
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<front><journal-meta><journal-id journal-id-type="nlm-ta">Open Access Maced J Med Sci</journal-id>
<journal-id journal-id-type="iso-abbrev">Open Access Maced J Med Sci</journal-id>
<journal-title-group><journal-title>Open Access Macedonian Journal of Medical Sciences</journal-title>
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<issn pub-type="epub">1857-9655</issn>
<publisher><publisher-name>Institute of Immunobiology and Human Genetics</publisher-name>
<publisher-loc>Republic of Macedonia</publisher-loc>
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<article-meta><article-id pub-id-type="pmid">27275353</article-id>
<article-id pub-id-type="pmc">4884240</article-id>
<article-id pub-id-type="publisher-id">OAMJMS-4-164</article-id>
<article-id pub-id-type="doi">10.3889/oamjms.2016.027</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Stomatology</subject>
</subj-group>
</article-categories>
<title-group><article-title>3D Finite Element Study on: Bar Splinted Implants Supporting Partial Denture in the Reconstructed Mandible</article-title>
</title-group>
<contrib-group><contrib contrib-type="author"><name><surname>El-Anwar</surname>
<given-names>Mohamed</given-names>
</name>
<xref ref-type="aff" rid="aff1">1</xref>
<xref ref-type="corresp" rid="cor1">*</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Ghali</surname>
<given-names>Rami</given-names>
</name>
<xref ref-type="aff" rid="aff2">2</xref>
</contrib>
<contrib contrib-type="author"><name><surname>Aboelnagga</surname>
<given-names>Mona</given-names>
</name>
<xref ref-type="aff" rid="aff2">2</xref>
</contrib>
</contrib-group>
<aff id="aff1"><label>1</label>
<italic>National Research Centre, Mechanical Engineering, Giza, Egypt</italic>
</aff>
<aff id="aff2"><label>2</label>
<italic>Faculty of Dentistry, Ain Shams University, Removable Prosthodontics, Cairo, Egypt</italic>
</aff>
<author-notes><corresp id="cor1"><label>*</label>
<bold>Correspondence:</bold>
Dr. Mohamed Ibrahim Mohamed El-Anwar. National Research Centre, Mechanical Engineering, 33 El Bohouth St., Dokki P.O. 12622, Giza, Egypt. Phone: +2 0122 2431297; Fax: +2 02 33370931. E-mail: <email xlink:href="anwar_eg@yahoo.com">anwar_eg@yahoo.com</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub"><day>15</day>
<month>3</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub"><day>09</day>
<month>2</month>
<year>2016</year>
</pub-date>
<volume>4</volume>
<issue>1</issue>
<fpage>164</fpage>
<lpage>171</lpage>
<history><date date-type="received"><day>25</day>
<month>12</month>
<year>2015</year>
</date>
<date date-type="rev-recd"><day>27</day>
<month>1</month>
<year>2016</year>
</date>
<date date-type="accepted"><day>28</day>
<month>1</month>
<year>2016</year>
</date>
</history>
<permissions><copyright-statement>Copyright: © 2016 Mohamed El-Anwar, Rami Ghali, Mona Aboelnagga.</copyright-statement>
<copyright-year>2016</copyright-year>
<license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/2.5/"><license-p>This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</license-p>
</license>
</permissions>
<abstract><sec id="st1"><title>AIM:</title>
<p>This study aimed to estimate the stress patterns induced by the masticatory loads on a removable prosthesis supported and retained by bar splinted implants placed in the reconstructed mandible with two different clip materials and without clip, in the fibula-jaw bone and prosthesis using finite element analysis.</p>
</sec>
<sec id="st2"><title>METHODS:</title>
<p>Two 3D finite element models were constructed, that models components were modeled on commercial CAD/CAM software then assembled into finite element package. Vertical loads were applied simulating the masticatory forces unilaterally in the resected site and bilaterally in the central fossa of the lower first molar as 100N (tension and compression). Analysis was based on the assumption full osseointegration between different types of bones, and between implants and fibula while fixing the top surface of the TMJ in place.</p>
</sec>
<sec id="st3"><title>RESULTS:</title>
<p>The metallic bar connecting the three implants is insensitive to the clips material. Its supporting implants showed typical behavior with maximum stress values at the neck region. Fibula and jaw bone showed stresses within physiologic, while clips material effect seems to be very small due to its relatively small size.</p>
</sec>
<sec id="st4"><title>CONCLUSION:</title>
<p>Switching loading force direction from tensile to compression did-not change the stresses and deformations distribution, but reversed their sign from positive to negative.</p>
</sec>
</abstract>
<kwd-group><kwd>Finite element method</kwd>
<kwd>Stress Distribution</kwd>
<kwd>Bar splinted implants</kwd>
<kwd>Reconstructed Mandible</kwd>
<kwd>Partial Denture</kwd>
</kwd-group>
</article-meta>
</front>
</pmc>
<affiliations><list></list>
<tree><noCountry><name sortKey="Aboelnagga, Mona" sort="Aboelnagga, Mona" uniqKey="Aboelnagga M" first="Mona" last="Aboelnagga">Mona Aboelnagga</name>
<name sortKey="El Anwar, Mohamed" sort="El Anwar, Mohamed" uniqKey="El Anwar M" first="Mohamed" last="El-Anwar">Mohamed El-Anwar</name>
<name sortKey="Ghali, Rami" sort="Ghali, Rami" uniqKey="Ghali R" first="Rami" last="Ghali">Rami Ghali</name>
</noCountry>
</tree>
</affiliations>
</record>
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