Loading stress distribution in posterior teeth restored by different core materials under fixed zirconia partial denture: a 3D-FEA study

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniv Taubate UNITAU-
Autor(es): dc.contributorUniv Naples Federico II-
Autor(es): dc.contributorUniv Tennessee-
Autor(es): dc.contributorForsyth Inst-
Autor(es): dc.creatorCanipaner, Larissa Mendes-
Autor(es): dc.creatorPinto Metro, Amanda De Oliveira-
Autor(es): dc.creatorMendes Tribst, Joao Paulo-
Autor(es): dc.creatorSouto Borges, Alexandre Luiz-
Autor(es): dc.creatorDi Lauro, Alessandro Espedito-
Autor(es): dc.creatorLanzotti, Antonio-
Autor(es): dc.creatorGarcia-Godoy, Franklin-
Autor(es): dc.creatorAusiello, Pietro-
Data de aceite: dc.date.accessioned2025-08-21T20:44:45Z-
Data de disponibilização: dc.date.available2025-08-21T20:44:45Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2021-06-01-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/245531-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/245531-
Descrição: dc.descriptionPurpose: To evaluate the effect of different substrate stiffness [sound dentin (SD), resin composite core (RC) or metal core (MC)] on the stress distribution of a zirconia posterior three-unit fixed partial denture (FPD). Methods: The abutment teeth (first molar and first premolar) were modeled, containing 1.5 mm of axial reduction, and converging axial walls. A static structural analysis was performed using a finite element method and the maximum principal stress criterion to analyze the fixed partial denture (FPD) and the cement layers of both abutment teeth. The materials were considered isotropic, linear, elastic, homogeneous and with bonded contacts. An axial load (300 N) was applied to the occlusal surface of the second premolar. Results: The region of the prosthetic connectors showed the highest tensile stress magnitude in the FPD structure depending on the substrate stiffness with different core materials. The highest stress peak was observed with the use of MC (116.4 MPa) compared to RC and SD. For the cement layer, RC showed the highest values in the molar abutment (14.7 MPa) and the highest values for the premolar abutment (14.4 MPa) compared to SD (14.1 and 13.4 MPa) and MC (13.8 and 13.3 MPa). Both metal core and resin composite core produced adequate stress concentration in the zirconia fixed partial denture during the load incidence. However, more flexible substrates, such as composite cores, can increase the tensile stress magnitude on the cement.-
Descrição: dc.descriptionSao Paulo State Univ, Inst Sci & Technol, Dept Dent Mat & Prosthodont, UNESP, Sao Jose Dos Campos, SP, Brazil-
Descrição: dc.descriptionUniv Taubate UNITAU, Dept Dent, Postgrad Program Dent, Taubate, SP, Brazil-
Descrição: dc.descriptionUniv Naples Federico II, Sch Dent, Naples, Italy-
Descrição: dc.descriptionUniv Naples Federico II, Dept Ind Engn, Fraunhofer Lab IDEAS, Naples, Italy-
Descrição: dc.descriptionUniv Tennessee, Coll Dent, Dept Biosci Res, Hlth Sci Ctr, Memphis, TN USA-
Descrição: dc.descriptionForsyth Inst, Cambridge, MA USA-
Descrição: dc.descriptionSao Paulo State Univ, Inst Sci & Technol, Dept Dent Mat & Prosthodont, UNESP, Sao Jose Dos Campos, SP, Brazil-
Formato: dc.format157-162-
Idioma: dc.languageen-
Publicador: dc.publisherMosher & Linder, Inc-
Relação: dc.relationAmerican Journal Of Dentistry-
???dc.source???: dc.sourceWeb of Science-
Título: dc.titleLoading stress distribution in posterior teeth restored by different core materials under fixed zirconia partial denture: a 3D-FEA study-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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