Influence of CAD/CAM Abutment Heights on the Biomechanical Behavior of Zirconia Single Crowns

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dc.contributor.authorde Matos, Jefferson David Melo [UNESP]
dc.contributor.authorGomes, Leonardo Silva [UNESP]
dc.contributor.authorde Carvalho Ramos, Nathália [UNESP]
dc.contributor.authorQueiroz, Daher Antonio
dc.contributor.authorTribst, João Paulo Mendes
dc.contributor.authorCampos, Tiago Moreira Bastos
dc.contributor.authorBorges, Alexandre Luiz Souto [UNESP]
dc.contributor.authorda Rocha Scalzer Lopes, Guilherme [UNESP]
dc.contributor.authorBottino, Marco Antonio [UNESP]
dc.contributor.authorPaes Junior, Tarcisio José Arruda [UNESP]
dc.contributor.institutionUniversity of Florida
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade São Francisco (USF)
dc.contributor.institutionUniversity of Taubaté (UNITAU)
dc.contributor.institutionThe University of Texas Health Science Center at Houston (UTHealth)
dc.contributor.institutionUniversity of Amsterdam and Vrije Universiteit
dc.contributor.institutionTechnological Institute of Aeronautics
dc.date.accessioned2023-07-29T16:01:50Z
dc.date.available2023-07-29T16:01:50Z
dc.date.issued2022-12-01
dc.description.abstractThe biomechanical behavior of the universal link (titanium base) prosthetic abutment with different heights in implant-supported restorations was evaluated. Forty regular implants (4 × 10 mm) in titanium were used, divided into two groups according to the abutment height (n = 20): 4.5 × 4 mm (short) and 4.5 × 5.5 mm (long). Using CAD/CAM technology, zirconia crowns were milled and cemented onto the prosthetic abutments. Half of the specimens were submitted to the initial maximum fracture load test in a universal testing machine. The long abutments presented fracture load (41.1 ± 6.96 kgf) statistically similar to the short abutments (49.5 ± 7.68 kgf). The other half of the specimens were submitted to mechanical cycling (2,000,000 cycles, 2 Hz with a stainless-steel antagonist with a diameter of 1.6 mm), following ISO 14801:2007. Subsequently, the survival of the specimens was evaluated using the survival analysis function, Kaplan–Meier and Mentel–Cox (log- rank) (p < 0.05). The finite element analysis was performed in similar conditions to those used for the in vitro test through computer-aided engineering software (version 19.2, ANSYS Inc., Houston, TX, USA). The biomechanical behavior of both models was similar regardless of the evaluated structure of the set. It was concluded that both short and long abutment presents promising fatigue behavior and stress distribution for use in long-term implant-supported restorations.en
dc.description.affiliationDepartment of Restorative Dental Sciences Center for Dental Biomaterials University of Florida
dc.description.affiliationDepartment of Biomaterials Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (UNESP), SP
dc.description.affiliationDepartment of Dentistry Universidade São Francisco (USF), SP
dc.description.affiliationDentistry Department Dentistry University of Taubaté (UNITAU), SP
dc.description.affiliationDepartment of Restorative Dentistry & Prosthodontics School of Dentistry The University of Texas Health Science Center at Houston (UTHealth)
dc.description.affiliationDepartment of Oral Regenerative Medicine Academic Centre for Dentistry Amsterdam (ACTA) University of Amsterdam and Vrije Universiteit
dc.description.affiliationDepartment Physics Technological Institute of Aeronautics, SP
dc.description.affiliationUnespDepartment of Biomaterials Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (UNESP), SP
dc.identifierhttp://dx.doi.org/10.3390/met12122025
dc.identifier.citationMetals, v. 12, n. 12, 2022.
dc.identifier.doi10.3390/met12122025
dc.identifier.issn2075-4701
dc.identifier.scopus2-s2.0-85144998442
dc.identifier.urihttp://hdl.handle.net/11449/249516
dc.language.isoeng
dc.relation.ispartofMetals
dc.sourceScopus
dc.subjectbiomechanical behavior
dc.subjectdental abutments
dc.subjectdental implants
dc.subjectdental materials
dc.subjectfatigue
dc.subjectfinite element analysis
dc.titleInfluence of CAD/CAM Abutment Heights on the Biomechanical Behavior of Zirconia Single Crownsen
dc.typeArtigo
unesp.author.orcid0000-0003-4507-0785[1]
unesp.author.orcid0000-0002-0977-5350[3]
unesp.author.orcid0000-0002-1477-8599[4]
unesp.author.orcid0000-0002-5412-3546[5]
unesp.author.orcid0000-0002-5707-7565[7]
unesp.author.orcid0000-0002-4310-0082[8]
unesp.author.orcid0000-0001-8446-0474[10]

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