Comparison of stress distribution between complete denture and implant-retained overdenture-2D FEA

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorAssunção, Wirley Goncalves
dc.creatorTabata, L. F.
dc.creatorBarao, Valentim Adelino Ricardo
dc.creatorRocha, Eduardo Passos
dc.date2013-09-30T18:29:50Z
dc.date2014-05-20T13:43:33Z
dc.date2016-10-25T16:58:06Z
dc.date2013-09-30T18:29:50Z
dc.date2014-05-20T13:43:33Z
dc.date2016-10-25T16:58:06Z
dc.date2008-10-01
dc.date.accessioned2017-04-05T20:47:18Z
dc.date.available2017-04-05T20:47:18Z
dc.identifierJournal of Oral Rehabilitation. Oxford: Blackwell Publishing, v. 35, n. 10, p. 766-774, 2008.
dc.identifier0305-182X
dc.identifierhttp://hdl.handle.net/11449/15207
dc.identifierhttp://acervodigital.unesp.br/handle/11449/15207
dc.identifier10.1111/j.1365-2842.2008.01851.x
dc.identifierWOS:000259151400007
dc.identifierhttp://dx.doi.org/10.1111/j.1365-2842.2008.01851.x
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/862247
dc.descriptionThe aim of this study was to compare the stress distribution induced by posterior functional loads on conventional complete dentures and implant-retained overdentures with different attachment systems using a two-dimentional Finite Element Analysis (FEA-2D). Three models representative of edentulous mandible were constructed on AutoCAD software; Group A (control), a model of edentulous mandible supporting a complete denture; Group B, a model of edentulous mandible supporting an overdenture over two splinted implants connected with the bar-clip system; Group C, a model of edentuluos mandible supporting an overdenture over two unsplinted impants with the O-ring system. Evaluation was conducted on Ansys software, with a vertical force of 100 N applied on the mandibular left first molar. When the stress was evaluated in supporting tissues, groups B (51.0 MPa) and C (52.6 MPa) demonstrated higher stress values than group A (10.1 MPa). Within the limits of this study, it may be conclued that the use of an attachment system increased stress values; furthermore, the use of splinted implants associated with the bar-clip attachment system favoured a lower stress distribution over the supporting tissue than the unsplinted implants with an O-ring abutment to retain the manibular overdenture.
dc.languageeng
dc.publisherBlackwell Publishing
dc.relationJournal of Oral Rehabilitation
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectdental implants
dc.subjectoverdenture
dc.subjectattachment
dc.subjectfinite element analysis
dc.subjectbiomechanics
dc.titleComparison of stress distribution between complete denture and implant-retained overdenture-2D FEA
dc.typeOtro


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