Implant-bone load transfer mechanisms in complete-arch prostheses supported by four implants: a three-dimensional finite element approach.
Identifieur interne : 000499 ( PubMed/Corpus ); précédent : 000498; suivant : 000500Implant-bone load transfer mechanisms in complete-arch prostheses supported by four implants: a three-dimensional finite element approach.
Auteurs : Luigi Baggi ; Simone Pastore ; Michele Di Girolamo ; Giuseppe VairoSource :
- The Journal of prosthetic dentistry [ 1097-6841 ] ; 2013.
English descriptors
- KwdEn :
- Alveolar Process (physiology), Biomechanical Phenomena, Compressive Strength, Dental Implant-Abutment Design (methods), Dental Implantation, Endosseous (methods), Dental Implants, Dental Models, Dental Prosthesis, Implant-Supported, Dental Stress Analysis (methods), Elastic Modulus, Finite Element Analysis, Humans, Tensile Strength.
- MESH :
- chemical : Dental Implants.
- methods : Dental Implant-Abutment Design, Dental Implantation, Endosseous, Dental Stress Analysis.
- physiology : Alveolar Process.
- Biomechanical Phenomena, Compressive Strength, Dental Models, Dental Prosthesis, Implant-Supported, Elastic Modulus, Finite Element Analysis, Humans, Tensile Strength.
Abstract
Complete-arch restorations supported by fewer than 5 dental implants can induce unbalanced load transfer and tissue overloading, leading to excessive bone resorption and possible clinical failure. This is primarily affected by the cantilever length, the implant design and positioning, and the morphology and properties of the bone.
DOI: 10.1016/S0022-3913(13)60004-9
PubMed: 23328192
Links to Exploration step
pubmed:23328192Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Implant-bone load transfer mechanisms in complete-arch prostheses supported by four implants: a three-dimensional finite element approach.</title><author><name sortKey="Baggi, Luigi" sort="Baggi, Luigi" uniqKey="Baggi L" first="Luigi" last="Baggi">Luigi Baggi</name><affiliation><nlm:affiliation>INMP Department of Social Dentistry and Gnathological Rehabilitation, University of Rome Tor Vergata, Rome, Italy. luigi.baggi@uniroma2.it</nlm:affiliation></affiliation></author><author><name sortKey="Pastore, Simone" sort="Pastore, Simone" uniqKey="Pastore S" first="Simone" last="Pastore">Simone Pastore</name></author><author><name sortKey="Di Girolamo, Michele" sort="Di Girolamo, Michele" uniqKey="Di Girolamo M" first="Michele" last="Di Girolamo">Michele Di Girolamo</name></author><author><name sortKey="Vairo, Giuseppe" sort="Vairo, Giuseppe" uniqKey="Vairo G" first="Giuseppe" last="Vairo">Giuseppe Vairo</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2013">2013</date><idno type="RBID">pubmed:23328192</idno><idno type="pmid">23328192</idno><idno type="doi">10.1016/S0022-3913(13)60004-9</idno><idno type="wicri:Area/PubMed/Corpus">000499</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000499</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Implant-bone load transfer mechanisms in complete-arch prostheses supported by four implants: a three-dimensional finite element approach.</title><author><name sortKey="Baggi, Luigi" sort="Baggi, Luigi" uniqKey="Baggi L" first="Luigi" last="Baggi">Luigi Baggi</name><affiliation><nlm:affiliation>INMP Department of Social Dentistry and Gnathological Rehabilitation, University of Rome Tor Vergata, Rome, Italy. luigi.baggi@uniroma2.it</nlm:affiliation></affiliation></author><author><name sortKey="Pastore, Simone" sort="Pastore, Simone" uniqKey="Pastore S" first="Simone" last="Pastore">Simone Pastore</name></author><author><name sortKey="Di Girolamo, Michele" sort="Di Girolamo, Michele" uniqKey="Di Girolamo M" first="Michele" last="Di Girolamo">Michele Di Girolamo</name></author><author><name sortKey="Vairo, Giuseppe" sort="Vairo, Giuseppe" uniqKey="Vairo G" first="Giuseppe" last="Vairo">Giuseppe Vairo</name></author></analytic><series><title level="j">The Journal of prosthetic dentistry</title><idno type="eISSN">1097-6841</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alveolar Process (physiology)</term><term>Biomechanical Phenomena</term><term>Compressive Strength</term><term>Dental Implant-Abutment Design (methods)</term><term>Dental Implantation, Endosseous (methods)</term><term>Dental Implants</term><term>Dental Models</term><term>Dental Prosthesis, Implant-Supported</term><term>Dental Stress Analysis (methods)</term><term>Elastic Modulus</term><term>Finite Element Analysis</term><term>Humans</term><term>Tensile Strength</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Dental Implants</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Dental Implant-Abutment Design</term><term>Dental Implantation, Endosseous</term><term>Dental Stress Analysis</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Alveolar Process</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biomechanical Phenomena</term><term>Compressive Strength</term><term>Dental Models</term><term>Dental Prosthesis, Implant-Supported</term><term>Elastic Modulus</term><term>Finite Element Analysis</term><term>Humans</term><term>Tensile Strength</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Complete-arch restorations supported by fewer than 5 dental implants can induce unbalanced load transfer and tissue overloading, leading to excessive bone resorption and possible clinical failure. This is primarily affected by the cantilever length, the implant design and positioning, and the morphology and properties of the bone.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23328192</PMID><DateCompleted><Year>2013</Year><Month>06</Month><Day>10</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1097-6841</ISSN><JournalIssue CitedMedium="Internet"><Volume>109</Volume><Issue>1</Issue><PubDate><Year>2013</Year><Month>Jan</Month></PubDate></JournalIssue><Title>The Journal of prosthetic dentistry</Title><ISOAbbreviation>J Prosthet Dent</ISOAbbreviation></Journal><ArticleTitle>Implant-bone load transfer mechanisms in complete-arch prostheses supported by four implants: a three-dimensional finite element approach.</ArticleTitle><Pagination><MedlinePgn>9-21</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/S0022-3913(13)60004-9</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S0022-3913(13)60004-9</ELocationID><Abstract><AbstractText Label="STATEMENT OF PROBLEM" NlmCategory="BACKGROUND">Complete-arch restorations supported by fewer than 5 dental implants can induce unbalanced load transfer and tissue overloading, leading to excessive bone resorption and possible clinical failure. This is primarily affected by the cantilever length, the implant design and positioning, and the morphology and properties of the bone.</AbstractText><AbstractText Label="PURPOSE" NlmCategory="OBJECTIVE">The purpose of this study was to compare 2 different restorative techniques for complete-arch rehabilitations supported by 4 implants. The primary purpose was to highlight the possible risks of excessive stress and unbalanced load transfer mechanisms and to identify the main biomechanical factors affecting loading transmission.</AbstractText><AbstractText Label="MATERIAL AND METHODS" NlmCategory="METHODS">Three-dimensional (3D) numerical models of edentulous maxillae and mandibles restored with 2 techniques using 4 implants were generated from computed tomography (CT) images and analyzed with linear elastic finite-element simulations with 3 different static loads. The first technique used 2 vertical mesial implants and 2 tilted distal implants (at a 30 degree angle), and the second used vertical implants that fulfilled platform switching concepts. Bone-muscle interactions and temporomandibular joints were included in the mandibular model. Complete implant osseous integration was assumed and different posthealing crestal bone geometries were modeled. Stress measures (revealing risks of tissue overloading) and a performance index (highlighting the main features of the loading partition mechanisms) were introduced and computed to compare the 2 techniques.</AbstractText><AbstractText Label="RESULTS" NlmCategory="RESULTS">Dissimilar load transfer mechanisms of the 2 restorative approaches when applied in mandibular and maxillary models were modeled. Prostheses supported by distally tilted implants exhibited a more effective and uniform loading partition than all vertical implants, except in the simulated maxilla under a frontal load. Tilted distal implants reduced compressive states at distal bone-implant interfaces but, depending on bone morphology and loading type, could induce high tensile stresses at distal crests. Overloading risks on mesial periimplant bone decreased when the efficient preservation of the crestal bone through platform switching strategies was modeled.</AbstractText><AbstractText Label="CONCLUSIONS" NlmCategory="CONCLUSIONS">Numerical simulations highlighted that the cantilever length, the implant design and positioning, and the bone's mechanical properties and morphology can affect both load transmission mechanisms and bone overloading risks in complete-arch restorations supported by 4 implants. Distally tilted implants induced better loading transmission than vertical implants, although the levels of computed stress were physiologically acceptable in both situations.</AbstractText><CopyrightInformation>Copyright © 2013 The Editorial Council of the Journal of Prosthetic Dentistry. Published by Mosby, Inc. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Baggi</LastName><ForeName>Luigi</ForeName><Initials>L</Initials><AffiliationInfo><Affiliation>INMP Department of Social Dentistry and Gnathological Rehabilitation, University of Rome Tor Vergata, Rome, Italy. luigi.baggi@uniroma2.it</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Pastore</LastName><ForeName>Simone</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Di Girolamo</LastName><ForeName>Michele</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Vairo</LastName><ForeName>Giuseppe</ForeName><Initials>G</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>J Prosthet Dent</MedlineTA><NlmUniqueID>0376364</NlmUniqueID><ISSNLinking>0022-3913</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D015921">Dental Implants</NameOfSubstance></Chemical></ChemicalList><CitationSubset>D</CitationSubset><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000539" MajorTopicYN="N">Alveolar Process</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D001696" MajorTopicYN="N">Biomechanical Phenomena</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D019245" MajorTopicYN="N">Compressive Strength</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D059605" MajorTopicYN="N">Dental Implant-Abutment Design</DescriptorName><QualifierName UI="Q000379" MajorTopicYN="Y">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003758" MajorTopicYN="N">Dental Implantation, Endosseous</DescriptorName><QualifierName UI="Q000379" MajorTopicYN="N">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D015921" MajorTopicYN="Y">Dental Implants</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003765" MajorTopicYN="N">Dental Models</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D019094" MajorTopicYN="Y">Dental Prosthesis, Implant-Supported</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003799" MajorTopicYN="Y">Dental Stress Analysis</DescriptorName><QualifierName UI="Q000379" MajorTopicYN="N">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D055119" MajorTopicYN="N">Elastic Modulus</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D020342" MajorTopicYN="N">Finite Element Analysis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013718" MajorTopicYN="N">Tensile Strength</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2013</Year><Month>1</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2013</Year><Month>1</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2013</Year><Month>6</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">23328192</ArticleId><ArticleId IdType="pii">S0022-3913(13)60004-9</ArticleId><ArticleId IdType="doi">10.1016/S0022-3913(13)60004-9</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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