Zirconia-based dental crown to support a removable partial denture: a three-dimensional finite element analysis using contact elements and micro-CT data

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade Estadual de Campinas (UNICAMP)
dc.contributorUniversidade Tecnológica Federal do Paraná (UTFPR)
dc.contributorUniversity of North Carolina
dc.creatorRocha, Eduardo Passos [UNESP]
dc.creatorAnchieta, Rodolfo Bruniera [UNESP]
dc.creatorAlmeida, Erika Oliveira de [UNESP]
dc.creatorFreitas, Amilcar Chagas [UNESP]
dc.creatorMartini, Ana Paula [UNESP]
dc.creatorSotto-Maior, Bruno Sales
dc.creatorLuersen, Marco Antonio
dc.creatorKo, Ching Chang
dc.date2015-12-07T15:32:14Z
dc.date2015-12-07T15:32:14Z
dc.date2015
dc.date.accessioned2023-09-12T07:30:30Z
dc.date.available2023-09-12T07:30:30Z
dc.identifierhttp://dx.doi.org/10.1080/10255842.2014.951927
dc.identifierComputer Methods in Biomechanics and Biomedical Engineering, v. 18, n. 16, p. 1744-1752, 2015.
dc.identifier1476-8259
dc.identifierhttp://hdl.handle.net/11449/131170
dc.identifier10.1080/10255842.2014.951927
dc.identifier3383392287039820
dc.identifier25331825
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8780451
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.descriptionDepartamento de Materiais Odontológicos e Prótese, Faculdade de Odontologia de Araçatuba (FOA), Universidade Estadual Paulista (UNESP), Araçatuba, SP, Brasil
dc.descriptionDepartamento de Prótese e Periodontia, Faculdade de Odontologia de Piracicaba (FOP), Universidade Estadual de Campinas (UNICAMP), Piracicaba, SP, Brasil
dc.descriptionDepartamento de Engenharia Mecânica, Universidade Tecnológica Federal do Paraná (UTFPR), Curitiba, PR, Brasil
dc.descriptionDepartment of Orthodontics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
dc.descriptionDepartamento de Materiais Odontológicos e Prótese, Faculdade de Odontologia de Araçatuba (FOA), Universidade Estadual Paulista (UNESP), Araçatuba, SP, Brasil
dc.format1744-1752
dc.languageeng
dc.publisherTaylor and Francis Online
dc.relationComputer Methods in Biomechanics and Biomedical Engineering
dc.rightsAcesso restrito
dc.sourcePubMed
dc.subjectFinite element analysis
dc.subjectFixed partial denture
dc.subjectRemovable partial denture
dc.subjectZirconium oxide
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.typeArtigo


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