Biomechanical effect of an occlusal device for patients with an implant-supported fixed dental prosthesis under parafunctional loading: A 3D finite element analysis

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dc.contributor.authorSilva, Lorena S.
dc.contributor.authorVerri, Fellippo R. [UNESP]
dc.contributor.authorLemos, Cleidiel A.A.
dc.contributor.authorMartins, Christine M.
dc.contributor.authorPellizzer, Eduardo P. [UNESP]
dc.contributor.authorde Souza Batista, Victor E.
dc.contributor.institutionUniversity of Western São Paulo - UNOESTE
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionFederal University of Juiz de Fora
dc.date.accessioned2021-06-25T11:01:47Z
dc.date.available2021-06-25T11:01:47Z
dc.date.issued2021-01-01
dc.description.abstractStatement 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.en
dc.description.affiliationGraduate student Department of Prosthodontics Presidente Prudente Dental School University of Western São Paulo - UNOESTE
dc.description.affiliationAssociate Professor Department of Dental Materials and Prosthodontics Araçatuba Dental School (UNESP) Univ Estadual Paulista
dc.description.affiliationAdjunct Professor Department of Dentistry (Division of Prosthodontics) Federal University of Juiz de Fora Campus Avançado Governador Valadares (UFJF/GV)
dc.description.affiliationAssociate professor Department of Endodontics Presidente Prudente Dental School University of Western São Paulo - UNOESTE
dc.description.affiliationFull Professor Department of Dental Materials and Prosthodontics Araçatuba Dental School (UNESP) Univ Estadual Paulista
dc.description.affiliationAssociate professor Department of Prosthodontics Presidente Prudente Dental School University of Western São Paulo - UNOESTE
dc.description.affiliationUnespAssociate Professor Department of Dental Materials and Prosthodontics Araçatuba Dental School (UNESP) Univ Estadual Paulista
dc.description.affiliationUnespFull Professor Department of Dental Materials and Prosthodontics Araçatuba Dental School (UNESP) Univ Estadual Paulista
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.identifierhttp://dx.doi.org/10.1016/j.prosdent.2021.04.024
dc.identifier.citationJournal of Prosthetic Dentistry.
dc.identifier.doi10.1016/j.prosdent.2021.04.024
dc.identifier.issn1097-6841
dc.identifier.issn0022-3913
dc.identifier.scopus2-s2.0-85107342299
dc.identifier.urihttp://hdl.handle.net/11449/207834
dc.language.isoeng
dc.relation.ispartofJournal of Prosthetic Dentistry
dc.sourceScopus
dc.titleBiomechanical effect of an occlusal device for patients with an implant-supported fixed dental prosthesis under parafunctional loading: A 3D finite element analysisen
dc.typeArtigo

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