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Biomechanical behavior of functionally graded S53P4 bioglass-zirconia dental implants: Experimental and finite element analyses

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Resumo:Objectives: The aim of this work was to evaluate the biomechanical behavior of one-piece zirconia implants with a functionally graded bioglass (BG) layer as compared to monolithic zirconia and BG-coated implants, using the finite element method (FEM). Methods: Zirconia disks were infiltrated with bioglass S53P4 and then morphologically inspected by scanning electron microscopy (SEM) followed by mechanical analyses on micro-indentation tests for further biomechanical validation using the finite element method (FEM). On modeling, zirconia dental implants anchored into mandibular bone were simulated on occlusal loading as recorded under mastication. Three types of implants were simulated: i) free of BG coating, ii) with 100 μm or 150 μm thick conventional BG coatings; and iii) with graded BG coatings involving 3 different chemical composition distributions. The stress state at both implant and bone were evaluated using the FEM. The mechanically-induced bone remodelling was analyzed through the bone strain results. Results: Infiltration of BG into a zirconia structure resulted in a ~100 μm thick layer with an exponential-like gradation of chemical composition and properties. Regarding the FEM calculations, the BG coating induced up to 30% decrease on stress in the implant body when compared to the monolithic zirconia implant. The gradient of chemical composition also improved the stresses’ distribution. The stresses distribution towards the BG-coatings were significantly high and could lead to failure. Stresses on the bone were recorded down to its strength threshold, with insignificant influence of the coating layer. The bone strain values on all models indicates further bone remodelling although BG-coated and BG-graded zirconia implants showed the highest strain magnitude that may enhance the mechanical stimulation for bone maintenance. Significance: Graded BG-zirconia dental implants showed enhanced overall biomechanical behaviour as compared to the BG-coated or monolithic zirconia dental implants. Also, such biomechanical improvements noticed for the BG-graded system should be considered in combination with the well-known osseointegration benefits of bioactive glasses.
Autores principais:Fabris, Douglas
Outros Autores:Fredel, Márcio C.; Souza, Júlio C. M.; Silva, Filipe Samuel; Henriques, Bruno
Assunto:Dental implant Zirconia Bioactive glass Functionally graded material Osseointegration Finite elements method
Ano:2021
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso restrito
Instituição associada:Universidade do Minho
Idioma:inglês
Origem:RepositóriUM - Universidade do Minho
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author Fabris, Douglas
author2 Fredel, Márcio C.
Souza, Júlio C. M.
Silva, Filipe Samuel
Henriques, Bruno
author2_role author
author
author
author
author_facet Fabris, Douglas
Fredel, Márcio C.
Souza, Júlio C. M.
Silva, Filipe Samuel
Henriques, Bruno
author_role author
contributor_name_str_mv RepositóriUM - Universidade do Minho
country_str PT
creators_json_txt [{\"Person.name\":\"Fabris, Douglas\"},{\"Person.name\":\"Fredel, Márcio C.\"},{\"Person.name\":\"Souza, Júlio C. M.\"},{\"Person.name\":\"Silva, Filipe Samuel\"},{\"Person.name\":\"Henriques, Bruno\"}]
datacite.contributors.contributor.contributorName.fl_str_mv RepositóriUM - Universidade do Minho
datacite.creators.creator.creatorName.fl_str_mv Fabris, Douglas
Fredel, Márcio C.
Souza, Júlio C. M.
Silva, Filipe Samuel
Henriques, Bruno
datacite.date.Accepted.fl_str_mv 2021-06-01T00:00:00Z
datacite.date.embargoed.fl_str_mv 10000-01-01T00:00:00Z
datacite.rights.fl_str_mv http://purl.org/coar/access_right/c_16ec
datacite.subjects.subject.fl_str_mv Dental implant
Zirconia
Bioactive glass
Functionally graded material
Osseointegration
Finite elements method
datacite.titles.title.fl_str_mv Biomechanical behavior of functionally graded S53P4 bioglass-zirconia dental implants: Experimental and finite element analyses
dc.contributor.none.fl_str_mv RepositóriUM - Universidade do Minho
dc.creator.none.fl_str_mv Fabris, Douglas
Fredel, Márcio C.
Souza, Júlio C. M.
Silva, Filipe Samuel
Henriques, Bruno
dc.date.Accepted.fl_str_mv 2021-06-01T00:00:00Z
dc.date.embargoed.fl_str_mv 10000-01-01T00:00:00Z
dc.format.none.fl_str_mv application/pdf
dc.identifier.none.fl_str_mv https://hdl.handle.net/1822/90233
dc.language.none.fl_str_mv eng
dc.publisher.none.fl_str_mv Elsevier
dc.rights.none.fl_str_mv http://purl.org/coar/access_right/c_16ec
dc.subject.none.fl_str_mv Dental implant
Zirconia
Bioactive glass
Functionally graded material
Osseointegration
Finite elements method
dc.title.fl_str_mv Biomechanical behavior of functionally graded S53P4 bioglass-zirconia dental implants: Experimental and finite element analyses
dc.type.none.fl_str_mv http://purl.org/coar/resource_type/c_6501
description Objectives: The aim of this work was to evaluate the biomechanical behavior of one-piece zirconia implants with a functionally graded bioglass (BG) layer as compared to monolithic zirconia and BG-coated implants, using the finite element method (FEM). Methods: Zirconia disks were infiltrated with bioglass S53P4 and then morphologically inspected by scanning electron microscopy (SEM) followed by mechanical analyses on micro-indentation tests for further biomechanical validation using the finite element method (FEM). On modeling, zirconia dental implants anchored into mandibular bone were simulated on occlusal loading as recorded under mastication. Three types of implants were simulated: i) free of BG coating, ii) with 100 μm or 150 μm thick conventional BG coatings; and iii) with graded BG coatings involving 3 different chemical composition distributions. The stress state at both implant and bone were evaluated using the FEM. The mechanically-induced bone remodelling was analyzed through the bone strain results. Results: Infiltration of BG into a zirconia structure resulted in a ~100 μm thick layer with an exponential-like gradation of chemical composition and properties. Regarding the FEM calculations, the BG coating induced up to 30% decrease on stress in the implant body when compared to the monolithic zirconia implant. The gradient of chemical composition also improved the stresses’ distribution. The stresses distribution towards the BG-coatings were significantly high and could lead to failure. Stresses on the bone were recorded down to its strength threshold, with insignificant influence of the coating layer. The bone strain values on all models indicates further bone remodelling although BG-coated and BG-graded zirconia implants showed the highest strain magnitude that may enhance the mechanical stimulation for bone maintenance. Significance: Graded BG-zirconia dental implants showed enhanced overall biomechanical behaviour as compared to the BG-coated or monolithic zirconia dental implants. Also, such biomechanical improvements noticed for the BG-graded system should be considered in combination with the well-known osseointegration benefits of bioactive glasses.
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identifier.url.fl_str_mv https://hdl.handle.net/1822/90233
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person_str_mv Fabris, Douglas
Fredel, Márcio C.
Souza, Júlio C. M.
Silva, Filipe Samuel
Henriques, Bruno
publishDate 2021
publisher.none.fl_str_mv Elsevier
reponame_str RepositóriUM - Universidade do Minho
repository_id_str urn:repositoryAcronym:rum
service_str_mv urn:repositoryAcronym:rum
spelling engElsevierporObjectives: The aim of this work was to evaluate the biomechanical behavior of one-piece zirconia implants with a functionally graded bioglass (BG) layer as compared to monolithic zirconia and BG-coated implants, using the finite element method (FEM). Methods: Zirconia disks were infiltrated with bioglass S53P4 and then morphologically inspected by scanning electron microscopy (SEM) followed by mechanical analyses on micro-indentation tests for further biomechanical validation using the finite element method (FEM). On modeling, zirconia dental implants anchored into mandibular bone were simulated on occlusal loading as recorded under mastication. Three types of implants were simulated: i) free of BG coating, ii) with 100 μm or 150 μm thick conventional BG coatings; and iii) with graded BG coatings involving 3 different chemical composition distributions. The stress state at both implant and bone were evaluated using the FEM. The mechanically-induced bone remodelling was analyzed through the bone strain results. Results: Infiltration of BG into a zirconia structure resulted in a ~100 μm thick layer with an exponential-like gradation of chemical composition and properties. Regarding the FEM calculations, the BG coating induced up to 30% decrease on stress in the implant body when compared to the monolithic zirconia implant. The gradient of chemical composition also improved the stresses’ distribution. The stresses distribution towards the BG-coatings were significantly high and could lead to failure. Stresses on the bone were recorded down to its strength threshold, with insignificant influence of the coating layer. The bone strain values on all models indicates further bone remodelling although BG-coated and BG-graded zirconia implants showed the highest strain magnitude that may enhance the mechanical stimulation for bone maintenance. Significance: Graded BG-zirconia dental implants showed enhanced overall biomechanical behaviour as compared to the BG-coated or monolithic zirconia dental implants. Also, such biomechanical improvements noticed for the BG-graded system should be considered in combination with the well-known osseointegration benefits of bioactive glasses.application/pdfporBiomechanical behavior of functionally graded S53P4 bioglass-zirconia dental implants: Experimental and finite element analysesFabris, DouglasFredel, Márcio C.Souza, Júlio C. M.Silva, Filipe SamuelHenriques, BrunoHostingInstitutionOrganizationalRepositóriUM - Universidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptPMID34087536ISSNIsPartOf1751-6161ISSNIsPartOf34087536DOIIsPartOf10.1016/j.jmbbm.2021.1045652021-06-012024-03-21T12:37:35Z10000-01-01T00:00:00Z2021-06-01T00:00:00ZHandlehttps://hdl.handle.net/1822/90233http://purl.org/coar/access_right/c_16ecrestricted accessDental implantZirconiaBioactive glassFunctionally graded materialOsseointegrationFinite elements method11891512 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_f1cfapplication/pdffulltexthttps://repositorium.uminho.pt/bitstreams/8aa126e3-8ffc-433e-9a07-472b12de5c37/download
spellingShingle Biomechanical behavior of functionally graded S53P4 bioglass-zirconia dental implants: Experimental and finite element analyses
Fabris, Douglas
Dental implant
Zirconia
Bioactive glass
Functionally graded material
Osseointegration
Finite elements method
status SINGLETON
subject.fl_str_mv Dental implant
Zirconia
Bioactive glass
Functionally graded material
Osseointegration
Finite elements method
title Biomechanical behavior of functionally graded S53P4 bioglass-zirconia dental implants: Experimental and finite element analyses
title_full Biomechanical behavior of functionally graded S53P4 bioglass-zirconia dental implants: Experimental and finite element analyses
title_fullStr Biomechanical behavior of functionally graded S53P4 bioglass-zirconia dental implants: Experimental and finite element analyses
title_full_unstemmed Biomechanical behavior of functionally graded S53P4 bioglass-zirconia dental implants: Experimental and finite element analyses
title_short Biomechanical behavior of functionally graded S53P4 bioglass-zirconia dental implants: Experimental and finite element analyses
title_sort Biomechanical behavior of functionally graded S53P4 bioglass-zirconia dental implants: Experimental and finite element analyses
topic Dental implant
Zirconia
Bioactive glass
Functionally graded material
Osseointegration
Finite elements method
topic_facet Dental implant
Zirconia
Bioactive glass
Functionally graded material
Osseointegration
Finite elements method
url https://hdl.handle.net/1822/90233
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