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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Fracture analysis of randomized implant-supported fixed dental prostheses</title><author><name sortKey="Esquivel Upshaw, Josephine F" sort="Esquivel Upshaw, Josephine F" uniqKey="Esquivel Upshaw J" first="Josephine F." last="Esquivel-Upshaw">Josephine F. Esquivel-Upshaw</name><affiliation><nlm:aff id="A1">Department of Restorative Dental Sciences, University of Florida, Gainesville, FL</nlm:aff></affiliation></author><author><name sortKey="Mehler, Alex" sort="Mehler, Alex" uniqKey="Mehler A" first="Alex" last="Mehler">Alex Mehler</name><affiliation><nlm:aff id="A1">Department of Restorative Dental Sciences, University of Florida, Gainesville, FL</nlm:aff></affiliation></author><author><name sortKey="Clark, Arthur E" sort="Clark, Arthur E" uniqKey="Clark A" first="Arthur E." last="Clark">Arthur E. Clark</name><affiliation><nlm:aff id="A1">Department of Restorative Dental Sciences, University of Florida, Gainesville, FL</nlm:aff></affiliation></author><author><name sortKey="Neal, Dan" sort="Neal, Dan" uniqKey="Neal D" first="Dan" last="Neal">Dan Neal</name><affiliation><nlm:aff id="A2">Department of Neurosurgery, University of Florida, Gainesville, FL</nlm:aff></affiliation></author><author><name sortKey="Anusavice, Kenneth J" sort="Anusavice, Kenneth J" uniqKey="Anusavice K" first="Kenneth J." last="Anusavice">Kenneth J. Anusavice</name><affiliation><nlm:aff id="A1">Department of Restorative Dental Sciences, University of Florida, Gainesville, FL</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">25016139</idno><idno type="pmc">4169735</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4169735</idno><idno type="RBID">PMC:4169735</idno><idno type="doi">10.1016/j.jdent.2014.07.001</idno><date when="2014">2014</date><idno type="wicri:Area/Pmc/Corpus">002596</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">002596</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Fracture analysis of randomized implant-supported fixed dental prostheses</title><author><name sortKey="Esquivel Upshaw, Josephine F" sort="Esquivel Upshaw, Josephine F" uniqKey="Esquivel Upshaw J" first="Josephine F." last="Esquivel-Upshaw">Josephine F. Esquivel-Upshaw</name><affiliation><nlm:aff id="A1">Department of Restorative Dental Sciences, University of Florida, Gainesville, FL</nlm:aff></affiliation></author><author><name sortKey="Mehler, Alex" sort="Mehler, Alex" uniqKey="Mehler A" first="Alex" last="Mehler">Alex Mehler</name><affiliation><nlm:aff id="A1">Department of Restorative Dental Sciences, University of Florida, Gainesville, FL</nlm:aff></affiliation></author><author><name sortKey="Clark, Arthur E" sort="Clark, Arthur E" uniqKey="Clark A" first="Arthur E." last="Clark">Arthur E. Clark</name><affiliation><nlm:aff id="A1">Department of Restorative Dental Sciences, University of Florida, Gainesville, FL</nlm:aff></affiliation></author><author><name sortKey="Neal, Dan" sort="Neal, Dan" uniqKey="Neal D" first="Dan" last="Neal">Dan Neal</name><affiliation><nlm:aff id="A2">Department of Neurosurgery, University of Florida, Gainesville, FL</nlm:aff></affiliation></author><author><name sortKey="Anusavice, Kenneth J" sort="Anusavice, Kenneth J" uniqKey="Anusavice K" first="Kenneth J." last="Anusavice">Kenneth J. Anusavice</name><affiliation><nlm:aff id="A1">Department of Restorative Dental Sciences, University of Florida, Gainesville, FL</nlm:aff></affiliation></author></analytic><series><title level="j">Journal of dentistry</title><idno type="ISSN">0300-5712</idno><idno type="eISSN">1879-176X</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec id="S1"><title>Objective</title><p id="P1">Fractures of posterior fixed dental all-ceramic prostheses can be caused by one or more factors including prosthesis design, flaw distribution, direction and magnitude of occlusal loading, and nature of supporting infrastructure (tooth root/implant), and presence of adjacent teeth. This clinical study of implant-supported, all-ceramic fixed dental prostheses, determined the effects of (<xref rid="R1" ref-type="bibr">1</xref>) presence of a tooth distal to the most distal retainer; (<xref rid="R2" ref-type="bibr">2</xref>) prosthesis loading either along the non-load bearing or load bearing areas; (<xref rid="R3" ref-type="bibr">3</xref>) presence of excursive contacts or maximum intercuspation contacts in the prosthesis; and (<xref rid="R4" ref-type="bibr">4</xref>) magnitude of bite force on the occurrence of veneer ceramic fracture.</p></sec><sec id="S2"><title>Methods</title><p id="P2">89 implant-supported FDPs were randomized as either a three-unit posterior metal-ceramic (Au-Pd-Ag alloy and InLine POM, Ivoclar, Vivadent) FDP or a ceramic-ceramic (ZirCAD and ZirPress, Ivoclar, Vivadent) FDP. Two implants (Osseospeed, Dentsply) and custom abutments (Atlantis, Dentsply) supported these FDPs, which were cemented with resin cement (RelyX Universal Cement). Baseline photographs were made with markings of teeth from maximum intercuspation (MI) and excursive function. Patients were recalled at 6 months and 1 to 3 years. Fractures were observed, their locations recorded, and images compared with baseline photographs of occlusal contacts.</p></sec><sec id="S3"><title>Conclusion</title><p id="P3">No significant relationship exists between the occurrence of fracture and: (<xref rid="R1" ref-type="bibr">1</xref>) the magnitude of bite force; (<xref rid="R2" ref-type="bibr">2</xref>) a tooth distal to the most distal retainer; and (<xref rid="R3" ref-type="bibr">3</xref>) contacts in load-bearing or non-load-bearing areas. However, there was a significantly higher likelihood of fracture in areas with MI contacts only.</p></sec><sec id="S4"><title>Clinical Significance</title><p id="P4">This clinical study demonstrates that there is a need to evaluate occlusion differently with implant-supported prostheses than with natural tooth supported prostheses because of the absence of a periodontal ligament. Implant supported prostheses should have minimal occlusion and lighter contacts than ones supported by natural dentition.</p></sec></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<pmc-dir>properties manuscript</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-journal-id">0354422</journal-id><journal-id journal-id-type="pubmed-jr-id">4687</journal-id><journal-id journal-id-type="nlm-ta">J Dent</journal-id><journal-id journal-id-type="iso-abbrev">J Dent</journal-id><journal-title-group><journal-title>Journal of dentistry</journal-title></journal-title-group><issn pub-type="ppub">0300-5712</issn><issn pub-type="epub">1879-176X</issn></journal-meta><article-meta><article-id pub-id-type="pmid">25016139</article-id><article-id pub-id-type="pmc">4169735</article-id><article-id pub-id-type="doi">10.1016/j.jdent.2014.07.001</article-id><article-id pub-id-type="manuscript">NIHMS612907</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Fracture analysis of randomized implant-supported fixed dental prostheses</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Esquivel-Upshaw</surname><given-names>Josephine F.</given-names></name><degrees>D.M.D., M.S.</degrees><role>M.S.-Clinical Investigation</role><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Mehler</surname><given-names>Alex</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Clark</surname><given-names>Arthur E.</given-names></name><degrees>Ph.D., D.M.D.</degrees><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Neal</surname><given-names>Dan</given-names></name><degrees>M.S.</degrees><xref ref-type="aff" rid="A2">2</xref></contrib><contrib contrib-type="author"><name><surname>Anusavice</surname><given-names>Kenneth J.</given-names></name><degrees>Ph.D.,D.M.D.</degrees><xref ref-type="aff" rid="A1">1</xref></contrib></contrib-group><aff id="A1"><label>1</label>Department of Restorative Dental Sciences, University of Florida, Gainesville, FL</aff><aff id="A2"><label>2</label>Department of Neurosurgery, University of Florida, Gainesville, FL</aff><author-notes><corresp id="cor1">Corresponding Author: Dr. Josephine Esquivel-Upshaw, University of Florida College of Dentistry, PO Box 100435, Gainesville, FL 32610, Tel No: 352-273-6928, Fax No: 352-846-0248</corresp></author-notes><pub-date pub-type="nihms-submitted"><day>16</day><month>7</month><year>2014</year></pub-date><pub-date pub-type="epub"><day>09</day><month>7</month><year>2014</year></pub-date><pub-date pub-type="ppub"><month>10</month><year>2014</year></pub-date><pub-date pub-type="pmc-release"><day>01</day><month>10</month><year>2015</year></pub-date><volume>42</volume><issue>10</issue><fpage>1335</fpage><lpage>1342</lpage><pmc-comment>elocation-id from pubmed: 10.1016/j.jdent.2014.07.001</pmc-comment>
<permissions><copyright-statement>© 2014 Elsevier Ltd. All rights reserved.</copyright-statement><copyright-year>2014</copyright-year></permissions><abstract><sec id="S1"><title>Objective</title><p id="P1">Fractures of posterior fixed dental all-ceramic prostheses can be caused by one or more factors including prosthesis design, flaw distribution, direction and magnitude of occlusal loading, and nature of supporting infrastructure (tooth root/implant), and presence of adjacent teeth. This clinical study of implant-supported, all-ceramic fixed dental prostheses, determined the effects of (<xref rid="R1" ref-type="bibr">1</xref>) presence of a tooth distal to the most distal retainer; (<xref rid="R2" ref-type="bibr">2</xref>) prosthesis loading either along the non-load bearing or load bearing areas; (<xref rid="R3" ref-type="bibr">3</xref>) presence of excursive contacts or maximum intercuspation contacts in the prosthesis; and (<xref rid="R4" ref-type="bibr">4</xref>) magnitude of bite force on the occurrence of veneer ceramic fracture.</p></sec><sec id="S2"><title>Methods</title><p id="P2">89 implant-supported FDPs were randomized as either a three-unit posterior metal-ceramic (Au-Pd-Ag alloy and InLine POM, Ivoclar, Vivadent) FDP or a ceramic-ceramic (ZirCAD and ZirPress, Ivoclar, Vivadent) FDP. Two implants (Osseospeed, Dentsply) and custom abutments (Atlantis, Dentsply) supported these FDPs, which were cemented with resin cement (RelyX Universal Cement). Baseline photographs were made with markings of teeth from maximum intercuspation (MI) and excursive function. Patients were recalled at 6 months and 1 to 3 years. Fractures were observed, their locations recorded, and images compared with baseline photographs of occlusal contacts.</p></sec><sec id="S3"><title>Conclusion</title><p id="P3">No significant relationship exists between the occurrence of fracture and: (<xref rid="R1" ref-type="bibr">1</xref>) the magnitude of bite force; (<xref rid="R2" ref-type="bibr">2</xref>) a tooth distal to the most distal retainer; and (<xref rid="R3" ref-type="bibr">3</xref>) contacts in load-bearing or non-load-bearing areas. However, there was a significantly higher likelihood of fracture in areas with MI contacts only.</p></sec><sec id="S4"><title>Clinical Significance</title><p id="P4">This clinical study demonstrates that there is a need to evaluate occlusion differently with implant-supported prostheses than with natural tooth supported prostheses because of the absence of a periodontal ligament. Implant supported prostheses should have minimal occlusion and lighter contacts than ones supported by natural dentition.</p></sec></abstract><kwd-group><kwd>fractography</kwd><kwd>ceramic-ceramic FDP</kwd><kwd>metal-ceramic FDP</kwd><kwd>occlusion</kwd><kwd>occlusal contact</kwd><kwd>failure analysis</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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