Resin cement coating reverts the machining damage on the flexural fatigue strength of lithium disilicate glass-ceramic

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorFederal University of Santa Maria-
Autor(es): dc.contributorFederal University of Rio Grande do Sul-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorMay, Michele Mirian-
Autor(es): dc.creatorMachry, Renan Vaz-
Autor(es): dc.creatorFraga, Sara-
Autor(es): dc.creatorde Andrade, Guilherme Schmitt-
Autor(es): dc.creatorBottino, Marco Antonio-
Autor(es): dc.creatorValandro, Luiz Felipe-
Autor(es): dc.creatorMay, Liliana Gressler-
Data de aceite: dc.date.accessioned2025-08-21T21:32:35Z-
Data de disponibilização: dc.date.available2025-08-21T21:32:35Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1002/jbm.b.35206-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/249445-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/249445-
Descrição: dc.descriptionThis study evaluated the effect of resin cement coating with high and low viscosities on the flexural fatigue strength of machined lithium disilicate glass-ceramic. Discs (IPS e.max CAD; Ivoclar Vivadent) were prepared and divided according to the surface condition (machining [M]—CEREC inLab; and polishing [P]—laboratory procedures), resin cement coating (with or without), and cement viscosity (high [H] and low [L]). The ceramic bonding surface was etched/primed by a one-step primer application followed by resin cement application (Variolink N base + high or low viscosity catalyst; Ivoclar Vivadent). Biaxial flexural fatigue strength was evaluated on a piston-on-three-ball set by the step-test method (n = 15) (initial stress: 60 MPa; incremental steps: 20 MPa; 10,000 cycles/step, at 20 Hz). Weibull statistics were used for fatigue data. Contact angle, topographic, and fractographic analysis were also performed. Machining produced statistically lower contact angle than polishing and a significant detrimental effect on the fatigue behavior (σ0M = 247.2 [246.9–268.3]; σ0P = 337.4 [297.8–382.4]). Machined groups followed by resin cement coating (σ0MH = 297.9 [276.0–321.5]; σ0Ml = 301.2 [277.1–327.4]) behaved similarly to the polished and coated groups (σ0PH = 342.0 [308.9–378.5]; σ0PL = 357.3 [324.7–393.1]), irrespective of the cement viscosity. Therefore, cement coating has able to revert the detrimental effects of the machining on the fatigue strength of lithium disilicate glass-ceramic. High and low viscosity cements behaved similarly in the improvement of CAD–CAM lithium disilicate fatigue strength.-
Descrição: dc.descriptionPost-Graduate Program in Dental Sciences Prosthetic Dentistry Unit Faculty of Odontology Federal University of Santa Maria-
Descrição: dc.descriptionDepartment of Conservative Dentistry Federal University of Rio Grande do Sul-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics São Paulo State University-
Descrição: dc.descriptionDepartment of Restorative Dentistry Federal University of Santa Maria-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics São Paulo State University-
Formato: dc.format971-980-
Idioma: dc.languageen-
Relação: dc.relationJournal of Biomedical Materials Research - Part B Applied Biomaterials-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectcement coating-
Palavras-chave: dc.subjectcomputer-aided design-
Palavras-chave: dc.subjectcomputer-aided manufacturing-
Palavras-chave: dc.subjectdental ceramics-
Palavras-chave: dc.subjectfatigue flexural strength-
Palavras-chave: dc.subjectmilling-
Palavras-chave: dc.subjectstrengthening-
Título: dc.titleResin cement coating reverts the machining damage on the flexural fatigue strength of lithium disilicate glass-ceramic-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.