Loading stress distribution in posterior teeth restored by different core materials under fixed zirconia partial denture: a 3D-FEA study
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/245531 |
Resumo: | Purpose: 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. |
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Repositório Institucional da UNESP |
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2946 |
spelling |
Loading stress distribution in posterior teeth restored by different core materials under fixed zirconia partial denture: a 3D-FEA studyPurpose: 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.Sao Paulo State Univ, Inst Sci & Technol, Dept Dent Mat & Prosthodont, UNESP, Sao Jose Dos Campos, SP, BrazilUniv Taubate UNITAU, Dept Dent, Postgrad Program Dent, Taubate, SP, BrazilUniv Naples Federico II, Sch Dent, Naples, ItalyUniv Naples Federico II, Dept Ind Engn, Fraunhofer Lab IDEAS, Naples, ItalyUniv Tennessee, Coll Dent, Dept Biosci Res, Hlth Sci Ctr, Memphis, TN USAForsyth Inst, Cambridge, MA USASao Paulo State Univ, Inst Sci & Technol, Dept Dent Mat & Prosthodont, UNESP, Sao Jose Dos Campos, SP, BrazilMosher & Linder, IncUniversidade Estadual Paulista (UNESP)Univ Taubate UNITAUUniv Naples Federico IIUniv TennesseeForsyth InstCanipaner, Larissa Mendes [UNESP]Pinto Metro, Amanda De Oliveira [UNESP]Mendes Tribst, Joao PauloSouto Borges, Alexandre Luiz [UNESP]Di Lauro, Alessandro EspeditoLanzotti, AntonioGarcia-Godoy, FranklinAusiello, Pietro2023-07-29T11:57:37Z2023-07-29T11:57:37Z2021-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article157-162American Journal of Dentistry. Weston: Mosher & Linder, Inc, v. 34, n. 3, p. 157-162, 2021.0894-8275http://hdl.handle.net/11449/245531WOS:000893226400007Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAmerican Journal Of Dentistryinfo:eu-repo/semantics/openAccess2023-07-29T11:57:37Zoai:repositorio.unesp.br:11449/245531Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T11:57:37Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Loading stress distribution in posterior teeth restored by different core materials under fixed zirconia partial denture: a 3D-FEA study |
title |
Loading stress distribution in posterior teeth restored by different core materials under fixed zirconia partial denture: a 3D-FEA study |
spellingShingle |
Loading stress distribution in posterior teeth restored by different core materials under fixed zirconia partial denture: a 3D-FEA study Canipaner, Larissa Mendes [UNESP] |
title_short |
Loading stress distribution in posterior teeth restored by different core materials under fixed zirconia partial denture: a 3D-FEA study |
title_full |
Loading stress distribution in posterior teeth restored by different core materials under fixed zirconia partial denture: a 3D-FEA study |
title_fullStr |
Loading stress distribution in posterior teeth restored by different core materials under fixed zirconia partial denture: a 3D-FEA study |
title_full_unstemmed |
Loading stress distribution in posterior teeth restored by different core materials under fixed zirconia partial denture: a 3D-FEA study |
title_sort |
Loading stress distribution in posterior teeth restored by different core materials under fixed zirconia partial denture: a 3D-FEA study |
author |
Canipaner, Larissa Mendes [UNESP] |
author_facet |
Canipaner, Larissa Mendes [UNESP] Pinto Metro, Amanda De Oliveira [UNESP] Mendes Tribst, Joao Paulo Souto Borges, Alexandre Luiz [UNESP] Di Lauro, Alessandro Espedito Lanzotti, Antonio Garcia-Godoy, Franklin Ausiello, Pietro |
author_role |
author |
author2 |
Pinto Metro, Amanda De Oliveira [UNESP] Mendes Tribst, Joao Paulo Souto Borges, Alexandre Luiz [UNESP] Di Lauro, Alessandro Espedito Lanzotti, Antonio Garcia-Godoy, Franklin Ausiello, Pietro |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Univ Taubate UNITAU Univ Naples Federico II Univ Tennessee Forsyth Inst |
dc.contributor.author.fl_str_mv |
Canipaner, Larissa Mendes [UNESP] Pinto Metro, Amanda De Oliveira [UNESP] Mendes Tribst, Joao Paulo Souto Borges, Alexandre Luiz [UNESP] Di Lauro, Alessandro Espedito Lanzotti, Antonio Garcia-Godoy, Franklin Ausiello, Pietro |
description |
Purpose: 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. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-01 2023-07-29T11:57:37Z 2023-07-29T11:57:37Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
American Journal of Dentistry. Weston: Mosher & Linder, Inc, v. 34, n. 3, p. 157-162, 2021. 0894-8275 http://hdl.handle.net/11449/245531 WOS:000893226400007 |
identifier_str_mv |
American Journal of Dentistry. Weston: Mosher & Linder, Inc, v. 34, n. 3, p. 157-162, 2021. 0894-8275 WOS:000893226400007 |
url |
http://hdl.handle.net/11449/245531 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
American Journal Of Dentistry |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
157-162 |
dc.publisher.none.fl_str_mv |
Mosher & Linder, Inc |
publisher.none.fl_str_mv |
Mosher & Linder, Inc |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803047005801414656 |