Influence of Framework Material and Posterior Implant Angulation in Full-Arch All-on-4 Implant-Supported Prosthesis Stress Concentration

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dc.contributor.authorTribst, João Paulo Mendes
dc.contributor.authorde Morais, Dayana Campanelli [UNESP]
dc.contributor.authorde Matos, Jefferson David Melo [UNESP]
dc.contributor.authorLopes, Guilherme da Rocha Scalzer [UNESP]
dc.contributor.authorDal Piva, Amanda Maria de Oliveira
dc.contributor.authorBorges, Alexandre Luiz Souto [UNESP]
dc.contributor.authorBottino, Marco Antonio [UNESP]
dc.contributor.authorLanzotti, Antonio
dc.contributor.authorMartorelli, Massimo
dc.contributor.authorAusiello, Pietro
dc.contributor.institutionUniversity of Amsterdam and Vrije Universiteit Amsterdam
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversity of Naples Federico II
dc.date.accessioned2022-05-01T13:11:35Z
dc.date.available2022-05-01T13:11:35Z
dc.date.issued2022-01-01
dc.description.abstractThis study evaluated the influence of distal implants angulation and framework material in the stress concentration of an All-on-4 full-arch prosthesis. A full-arch implant-supported prosthesis 3D model was created with different distal implant angulations and cantilever arms (30° with 10-mm cantilever; 45° with 10-mm cantilever and 45° with 6-mm cantilever) and framework materials (Cobalt–chrome [CoCr alloy], Yttria-stabilized tetragonal zirconia polycrystal [Y-TZP] and polyetheretherketone [PEEK]). Each solid was imported to computer-aided engineering software, and tetrahedral elements formed the mesh. Material properties were assigned to each solid with isotropic and homogeneous behavior. The contacts were considered bonded. A vertical load of 200 N was applied in the distal region of the cantilever arm, and stress was evaluated in Von Misses (σVM) for prosthesis components and the Maximum (σMAX) and Minimum (σMIN) Principal Stresses for the bone. Distal implants angled in 45° with a 10-mm cantilever arm showed the highest stress concentration for all structures with higher stress magnitudes when the PEEK framework was considered. However, distal implants angled in 45° with a 6-mm cantilever arm showed promising mechanical responses with the lowest stress peaks. For the All-on-4 concept, a 45° distal implants angulation is only beneficial if it is possible to reduce the cantilever’s length; otherwise, the use of 30° should be considered. Comparing with PEEK, the YTZP and CoCr concentrated stress in the framework structure, reducing the stress in the prosthetic screw.en
dc.description.affiliationDepartment of Dental Materials Academic Centre for Dentistry Amsterdam (ACTA) University of Amsterdam and Vrije Universiteit Amsterdam
dc.description.affiliationDepartment of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University-UNESP
dc.description.affiliationFraunhofer JL IDEAS Department of Industrial Engineering University of Naples Federico II
dc.description.affiliationSchool of Dentistry University of Naples Federico II, Via S. Pansini 5
dc.description.affiliationUnespDepartment of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University-UNESP
dc.identifierhttp://dx.doi.org/10.3390/dj10010012
dc.identifier.citationDentistry Journal, v. 10, n. 1, 2022.
dc.identifier.doi10.3390/dj10010012
dc.identifier.issn2304-6767
dc.identifier.scopus2-s2.0-85123774655
dc.identifier.urihttp://hdl.handle.net/11449/234071
dc.language.isoeng
dc.relation.ispartofDentistry Journal
dc.sourceScopus
dc.subjectDental implants
dc.subjectFinite element analysis
dc.subjectPolymers
dc.subjectProsthodontics
dc.titleInfluence of Framework Material and Posterior Implant Angulation in Full-Arch All-on-4 Implant-Supported Prosthesis Stress Concentrationen
dc.typeArtigo

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