Fatigue behavior of multilayer ceramic structures in traditional and reverse layering designs

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de Sergipe (UFS)-
Autor(es): dc.contributorUniversity of Mississippi Medical Center-
Autor(es): dc.contributorUniversidade Federal de Pernambuco (UFPE)-
Autor(es): dc.creatorContreras, Lisseth Patricia Claudio-
Autor(es): dc.creatorRodrigues, Camila Silva-
Autor(es): dc.creatorZucuni, Camila Pauleski-
Autor(es): dc.creatorValandro, Luiz Felipe-
Autor(es): dc.creatorMarocho, Susana Maria Salazar-
Autor(es): dc.creatorde Melo, Renata Marques-
Data de aceite: dc.date.accessioned2025-08-21T23:08:20Z-
Data de disponibilização: dc.date.available2025-08-21T23:08:20Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1111/jopr.13705-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/247550-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/247550-
Descrição: dc.descriptionPurpose: This study evaluated the fatigue failure load (FFL) and the number of cycles for fatigue failure (CFF) of traditional (porcelain layer up) and reversed (zirconia layer up) designs of porcelain-veneered zirconia samples prepared with heat-pressing or file-splitting techniques. Materials and Methods: Zirconia discs were prepared and veneered with heat-pressed or machined feldspathic ceramic. The bilayer discs were bonded onto a dentin-analog according to the bilayer technique and sample design: traditional heat-pressing (T-HP), reversed heat-pressing (R-HP), traditional file-splitting with fusion ceramic (T-FC), reversed file-splitting with fusion ceramic R-FC), traditional file-splitting with resin cement (T-RC), and reversed file-splitting with resin cement (R-RC). The fatigue tests were performed using the stepwise approach at 20 Hz, 10,000 cycles/step, step-size of 200 N starting at 600 N, and proceeding until failure detection or up to 2600 N if enduring. The failure modes (from radial and/or cone cracks) were analyzed in a stereomicroscope. Results: The reversed design decreased the FFL and CFF of bilayers prepared with heat-pressing and file-splitting with fusion ceramic. The T-HP and T-FC reached the highest results, which were statistically similar between them. The bilayers prepared by the file-splitting with resin cement (T-RC and R-RC) were similar to the R-FC and R-HP groups regarding FFL and CFF. Almost all reverse layering samples failed by radial cracks. Conclusions: The reverse layering design did not improve the fatigue behavior of porcelain veneered zirconia samples. The three bilayer techniques behaved similarly when used in the reversed design.-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (UNESP), São Paulo-
Descrição: dc.descriptionDepartment of Restorative Dentistry Federal University of Santa Maria (UFSM), Rio Grande do Sul-
Descrição: dc.descriptionDepartment of Biomedical Materials Science University of Mississippi Medical Center-
Descrição: dc.descriptionGraduate Program in Dentistry Federal University of Pelotas (UFPel), Rio Grande do Sul-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (UNESP), São Paulo-
Idioma: dc.languageen-
Relação: dc.relationJournal of Prosthodontics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectbilayer crowns-
Palavras-chave: dc.subjectbioinspiration-
Palavras-chave: dc.subjectdental ceramics-
Palavras-chave: dc.subjectporcelain-veneered zirconia-
Título: dc.titleFatigue behavior of multilayer ceramic structures in traditional and reverse layering designs-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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