Implant Platform Switching: Biomechanical Approach Using Two-Dimensional Finite Element Analysis

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dc.contributor.authorTabata, Lucas Fernando [UNESP]
dc.contributor.authorAssunção, Wirley Goncalves [UNESP]
dc.contributor.authorRicardo Barao, Valentim Adelino [UNESP]
dc.contributor.authorSousa, Edson Antonio Capello [UNESP]
dc.contributor.authorGomes, Erica Alves [UNESP]
dc.contributor.authorDelben, Juliana Aparecida [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:30:05Z
dc.date.accessioned2014-05-20T13:43:43Z
dc.date.available2013-09-30T18:30:05Z
dc.date.available2014-05-20T13:43:43Z
dc.date.issued2010-01-01
dc.description.abstractIn implant therapy, a peri-implant bone resorption has been noticed mainly in the first year after prosthesis insertion. This bone remodeling can sometimes jeopardize the outcome of the treatment, especially in areas in which short implants are used and also in aesthetic cases. To avoid this occurrence, the use of platform switching (PS) has been used. This study aimed to evaluate the biomechanical concept of PS with relation to stress distribution using two-dimensional finite element analysis. A regular matching diameter connection of abutment-implant (regular platform group [RPG]) and a PS connection (PS group [PSG]) were simulated by 2 two-dimensional finite element models that reproduced a 2-piece implant system with peri-implant bone tissue. A regular implant (prosthetic platform of 4.1 mm) and a wide implant (prosthetic platform of 5.0 mm) were used to represent the RPG and PSG, respectively, in which a regular prosthetic component of 4.1 mm was connected to represent the crown. A load of 100 N was applied on the models using ANSYS software. The RPG spreads the stress over a wider area in the peri-implant bone tissue (159 MPa) and the implant (1610 MPa), whereas the PSG seems to diminish the stress distribution on bone tissue (34 MPa) and implant (649 MPa). Within the limitation of the study, the PS presented better biomechanical behavior in relation to stress distribution on the implant but especially in the bone tissue (80% less). However, in the crown and retention screw, an increase in stress concentration was observed.en
dc.description.affiliationUniv Estadual Paulista, Aracatuba Dent Sch, Dept Dent Mat & Prosthodont, BR-16015050 São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, Bauru Engn Sch, Dept Mech Engn, BR-16015050 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Aracatuba Dent Sch, Dept Dent Mat & Prosthodont, BR-16015050 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Bauru Engn Sch, Dept Mech Engn, BR-16015050 São Paulo, Brazil
dc.description.sponsorshipNational Institutes of Health
dc.description.sponsorshipWellcome Trust
dc.description.sponsorshipHoward Hughes Medical Institute
dc.format.extent182-187
dc.identifierhttp://dx.doi.org/10.1097/SCS.0b013e3181c50eb8
dc.identifier.citationJournal of Craniofacial Surgery. Philadelphia: Lippincott Williams & Wilkins, v. 21, n. 1, p. 182-187, 2010.
dc.identifier.doi10.1097/SCS.0b013e3181c50eb8
dc.identifier.issn1049-2275
dc.identifier.lattes4438747643373395
dc.identifier.urihttp://hdl.handle.net/11449/15276
dc.identifier.wosWOS:000273902400042
dc.language.isoeng
dc.publisherLippincott Williams & Wilkins
dc.relation.ispartofJournal of Craniofacial Surgery
dc.relation.ispartofjcr0.772
dc.relation.ispartofsjr0,448
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectDental implantsen
dc.subjectplatform switchingen
dc.subjectimplant supported prosthesisen
dc.subjectfinite element analysisen
dc.subjectstress distributionen
dc.subjectcrestal bone lossen
dc.titleImplant Platform Switching: Biomechanical Approach Using Two-Dimensional Finite Element Analysisen
dc.typeArtigo
dcterms.licensehttp://edmgr.ovid.com/spine/accounts/copyrightTransfer.pdf
dcterms.rightsHolderLippincott Williams & Wilkins
unesp.author.lattes8934648262859482
unesp.author.orcid0000-0002-8903-0737[2]
unesp.author.orcid0000-0002-6510-3727[6]
unesp.author.orcid0000-0002-6391-9917[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Baurupt
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatubapt

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Artigos - Materiais Odontológicos e Prótese - FOA
Artigos - Engenharia Mecânica - FEB