Zirconia-based Dental Crown To Support A Removable Partial Denture: A Three-dimensional Finite Element Analysis Using Contact Elements And Micro-ct Data

dc.creatorRocha E.P.
dc.creatorAnchieta R.B.
dc.creatorde Almeida E.O.
dc.creatorFreitas A.C.
dc.creatorMartini A.P.
dc.creatorSotto-Maior B.S.
dc.creatorLuersen M.A.
dc.creatorKo C.C.
dc.date2015
dc.date2015-06-25T12:52:17Z
dc.date2015-11-26T15:04:31Z
dc.date2015-06-25T12:52:17Z
dc.date2015-11-26T15:04:31Z
dc.date.accessioned2018-03-28T22:15:20Z
dc.date.available2018-03-28T22:15:20Z
dc.identifier
dc.identifierComputer Methods In Biomechanics And Biomedical Engineering. Taylor And Francis Ltd., v. 18, n. 16, p. 1744 - 1752, 2015.
dc.identifier10255842
dc.identifier10.1080/10255842.2014.951927
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84923457781&partnerID=40&md5=b9ea09c062a1ca9b2b26f2ffeaeed284
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/85375
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/85375
dc.identifier2-s2.0-84923457781
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1256865
dc.descriptionVeneer fracture is the most common complication in zirconia-based restorations. The aim of this study was to evaluate the mechanical behavior of a zirconia-based crown in a lower canine tooth supporting removable partial denture (RPD) prosthesis, varying the bond quality of the veneer/coping interface. Microtomography (μCT) data of an extracted left lower canine were used to build the finite element model (M) varying the core material (gold core – MAu; zirconia core – MZi) and the quality of the veneer/core interface (complete bonded – MZi; incomplete bonded – MZi-NL). The incomplete bonding condition was only applied for zirconia coping by using contact elements (Target/Contact) with 0.3 frictional coefficients. Stress fields were obtained using Ansys Workbench 10.0. The loading condition (L = 1 N) was vertically applied at the base of the RPD prosthesis metallic support towards the dental apex. Maximum principal (σmax) and von Mises equivalent (σvM) stresses were obtained. The σmax (MPa) for the bonded condition was similar between gold and zirconia cores (MAu, 0.42; MZi, 0.40). The incomplete bonded condition (MZi-NL) raised σmax in the veneer up to 800% (3.23 MPa) in contrast to the bonded condition. The peak of σvM increased up to 270% in the MZi-NL. The incomplete bond condition increasing the stress in the veneer/zirconia interface.
dc.description18
dc.description16
dc.description1744
dc.description1752
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dc.languageen
dc.publisherTaylor and Francis Ltd.
dc.relationComputer Methods in Biomechanics and Biomedical Engineering
dc.rightsfechado
dc.sourceScopus
dc.titleZirconia-based Dental Crown To Support A Removable Partial Denture: A Three-dimensional Finite Element Analysis Using Contact Elements And Micro-ct Data
dc.typeArtículos de revistas


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