Biomechanical effect of an occlusal device for patients with an implant-supported fixed dental prosthesis under parafunctional loading: A 3D finite element analysis
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://dx.doi.org/10.1016/j.prosdent.2021.04.024 http://hdl.handle.net/11449/207834 |
Resumo: | Statement of problem: Whether providing an occlusal device for a patient with bruxism and an implant-supported fixed dental prosthesis leads to improved biomechanics is unclear. Purpose: The purpose of this 3D finite element analysis (FEA) study was to evaluate the biomechanical behavior of 3-unit implant-supported prostheses under parafunctional forces with and without an occlusal device. Materials and methods: Eight 3D models consisting of a posterior (type IV) maxillary bone block with 3 external hexagon implants (Ø4.0×7.0 mm) and 3-unit implant-supported prostheses with different crown connections (splinted or unsplinted) and an occlusal device under functional and parafunctional loading were simulated. The abutment screws were evaluated by von Mises stress maps, and the bone tissue by maximum principal stress and microstrain maps by using a finite element software program. Results: An occlusal device improved the biomechanical behavior of the prostheses by reducing stress in the abutment screws and stress and strain in the bone tissue. However, the use of an occlusal device was not sufficiently effective to negate the biomechanical benefit of splinting. Conclusions: The use of splinted crowns in the posterior maxillary region with an occlusal device was the most effective method of reducing stress in the abutment screws and stress and strain in the bone tissue when parafunction was modeled. |
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Biomechanical effect of an occlusal device for patients with an implant-supported fixed dental prosthesis under parafunctional loading: A 3D finite element analysisStatement of problem: Whether providing an occlusal device for a patient with bruxism and an implant-supported fixed dental prosthesis leads to improved biomechanics is unclear. Purpose: The purpose of this 3D finite element analysis (FEA) study was to evaluate the biomechanical behavior of 3-unit implant-supported prostheses under parafunctional forces with and without an occlusal device. Materials and methods: Eight 3D models consisting of a posterior (type IV) maxillary bone block with 3 external hexagon implants (Ø4.0×7.0 mm) and 3-unit implant-supported prostheses with different crown connections (splinted or unsplinted) and an occlusal device under functional and parafunctional loading were simulated. The abutment screws were evaluated by von Mises stress maps, and the bone tissue by maximum principal stress and microstrain maps by using a finite element software program. Results: An occlusal device improved the biomechanical behavior of the prostheses by reducing stress in the abutment screws and stress and strain in the bone tissue. However, the use of an occlusal device was not sufficiently effective to negate the biomechanical benefit of splinting. Conclusions: The use of splinted crowns in the posterior maxillary region with an occlusal device was the most effective method of reducing stress in the abutment screws and stress and strain in the bone tissue when parafunction was modeled.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Graduate student Department of Prosthodontics Presidente Prudente Dental School University of Western São Paulo - UNOESTEAssociate Professor Department of Dental Materials and Prosthodontics Araçatuba Dental School (UNESP) Univ Estadual PaulistaAdjunct Professor Department of Dentistry (Division of Prosthodontics) Federal University of Juiz de Fora Campus Avançado Governador Valadares (UFJF/GV)Associate professor Department of Endodontics Presidente Prudente Dental School University of Western São Paulo - UNOESTEFull Professor Department of Dental Materials and Prosthodontics Araçatuba Dental School (UNESP) Univ Estadual PaulistaAssociate professor Department of Prosthodontics Presidente Prudente Dental School University of Western São Paulo - UNOESTEAssociate Professor Department of Dental Materials and Prosthodontics Araçatuba Dental School (UNESP) Univ Estadual PaulistaFull Professor Department of Dental Materials and Prosthodontics Araçatuba Dental School (UNESP) Univ Estadual PaulistaUniversity of Western São Paulo - UNOESTEUniversidade Estadual Paulista (Unesp)Federal University of Juiz de ForaSilva, Lorena S.Verri, Fellippo R. [UNESP]Lemos, Cleidiel A.A.Martins, Christine M.Pellizzer, Eduardo P. [UNESP]de Souza Batista, Victor E.2021-06-25T11:01:47Z2021-06-25T11:01:47Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.prosdent.2021.04.024Journal of Prosthetic Dentistry.1097-68410022-3913http://hdl.handle.net/11449/20783410.1016/j.prosdent.2021.04.0242-s2.0-85107342299Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Prosthetic Dentistryinfo:eu-repo/semantics/openAccess2021-10-23T17:46:00Zoai:repositorio.unesp.br:11449/207834Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T17:46Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Biomechanical effect of an occlusal device for patients with an implant-supported fixed dental prosthesis under parafunctional loading: A 3D finite element analysis |
title |
Biomechanical effect of an occlusal device for patients with an implant-supported fixed dental prosthesis under parafunctional loading: A 3D finite element analysis |
spellingShingle |
Biomechanical effect of an occlusal device for patients with an implant-supported fixed dental prosthesis under parafunctional loading: A 3D finite element analysis Silva, Lorena S. |
title_short |
Biomechanical effect of an occlusal device for patients with an implant-supported fixed dental prosthesis under parafunctional loading: A 3D finite element analysis |
title_full |
Biomechanical effect of an occlusal device for patients with an implant-supported fixed dental prosthesis under parafunctional loading: A 3D finite element analysis |
title_fullStr |
Biomechanical effect of an occlusal device for patients with an implant-supported fixed dental prosthesis under parafunctional loading: A 3D finite element analysis |
title_full_unstemmed |
Biomechanical effect of an occlusal device for patients with an implant-supported fixed dental prosthesis under parafunctional loading: A 3D finite element analysis |
title_sort |
Biomechanical effect of an occlusal device for patients with an implant-supported fixed dental prosthesis under parafunctional loading: A 3D finite element analysis |
author |
Silva, Lorena S. |
author_facet |
Silva, Lorena S. Verri, Fellippo R. [UNESP] Lemos, Cleidiel A.A. Martins, Christine M. Pellizzer, Eduardo P. [UNESP] de Souza Batista, Victor E. |
author_role |
author |
author2 |
Verri, Fellippo R. [UNESP] Lemos, Cleidiel A.A. Martins, Christine M. Pellizzer, Eduardo P. [UNESP] de Souza Batista, Victor E. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
University of Western São Paulo - UNOESTE Universidade Estadual Paulista (Unesp) Federal University of Juiz de Fora |
dc.contributor.author.fl_str_mv |
Silva, Lorena S. Verri, Fellippo R. [UNESP] Lemos, Cleidiel A.A. Martins, Christine M. Pellizzer, Eduardo P. [UNESP] de Souza Batista, Victor E. |
description |
Statement of problem: Whether providing an occlusal device for a patient with bruxism and an implant-supported fixed dental prosthesis leads to improved biomechanics is unclear. Purpose: The purpose of this 3D finite element analysis (FEA) study was to evaluate the biomechanical behavior of 3-unit implant-supported prostheses under parafunctional forces with and without an occlusal device. Materials and methods: Eight 3D models consisting of a posterior (type IV) maxillary bone block with 3 external hexagon implants (Ø4.0×7.0 mm) and 3-unit implant-supported prostheses with different crown connections (splinted or unsplinted) and an occlusal device under functional and parafunctional loading were simulated. The abutment screws were evaluated by von Mises stress maps, and the bone tissue by maximum principal stress and microstrain maps by using a finite element software program. Results: An occlusal device improved the biomechanical behavior of the prostheses by reducing stress in the abutment screws and stress and strain in the bone tissue. However, the use of an occlusal device was not sufficiently effective to negate the biomechanical benefit of splinting. Conclusions: The use of splinted crowns in the posterior maxillary region with an occlusal device was the most effective method of reducing stress in the abutment screws and stress and strain in the bone tissue when parafunction was modeled. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:01:47Z 2021-06-25T11:01:47Z 2021-01-01 |
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 |
http://dx.doi.org/10.1016/j.prosdent.2021.04.024 Journal of Prosthetic Dentistry. 1097-6841 0022-3913 http://hdl.handle.net/11449/207834 10.1016/j.prosdent.2021.04.024 2-s2.0-85107342299 |
url |
http://dx.doi.org/10.1016/j.prosdent.2021.04.024 http://hdl.handle.net/11449/207834 |
identifier_str_mv |
Journal of Prosthetic Dentistry. 1097-6841 0022-3913 10.1016/j.prosdent.2021.04.024 2-s2.0-85107342299 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Prosthetic Dentistry |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus 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 |
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