Is adhesive bonding with high and low viscosity cements able to revert the negative effect of machining on the fatigue behavior of lithium disilicate glass-ceramic?

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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 Antônio-
Autor(es): dc.creatorValandro, Luiz Felipe-
Autor(es): dc.creatorMay, Liliana Gressler-
Data de aceite: dc.date.accessioned2025-08-21T19:30:38Z-
Data de disponibilização: dc.date.available2025-08-21T19:30:38Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.ijadhadh.2023.103618-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/309997-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/309997-
Descrição: dc.descriptionThe aim of this study was to evaluate the fatigue behavior of adhesively cemented machined and polished lithium disilicate discs and compare the influence of the resin cement viscosity used to bond the ceramics to dentin analog substrate. Disc-shaped specimens (n = 15, Ø = 12 mm; thickness = 1.3 mm) of CAD-CAM lithium disilicate (IPS e.max CAD, Ivoclar Vivadent) were prepared and divided according to processing and surface finishing (machining (M) – CEREC inLab; and polishing (P) – control) and cement viscosity (high (H) and low (L)). The specimens were treated with self-etching primer and adhesively cemented (Variolink N Base + High or Low viscosity catalyst, Ivoclar Vivadent) to dentin analog discs (Ø = 12 mm; thickness = 2.2 mm). The cemented assemblies were subjected to fatigue testing using a step-stress approach (500−1500 N; step-size of 100 N; 10,000 cycles per step; 20 Hz). Weibull statistics were conducted on fatigue data (95 % CI). Fractographic and topographic analyzes were also performed on a scanning electron microscope (SEM). Considering the same viscosity, machined groups presented statistically lower characteristic fatigue failure load (N) (FFL0 MH 1192 [1111–1278]; ML 1105 [1077–1134]) than their polished controls (FFL0 PH 1350 [1279–1424]; PL 1333 [1276–1392]). No differences were found between cement viscosities, regardless of surface characteristic. It is well known that CAD-CAM machining impairs mechanical performance of lithium disilicate glass-ceramics. Adhesive cementation was not able to revert this negative impact, regardless of cement viscosity. Cement viscosity did not affect the fatigue results.-
Descrição: dc.descriptionPost-Graduate Program in Dental Sciences Federal University of Santa Maria, RS-
Descrição: dc.descriptionDepartment of Conservative Dentistry Federal University of Rio Grande Do Sul, RS-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics São Paulo State University, SP-
Descrição: dc.descriptionPost-Graduate Program in Dental Sciences Department of Restorative Dentistry Federal University of Santa Maria, RS-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics São Paulo State University, SP-
Idioma: dc.languageen-
Relação: dc.relationInternational Journal of Adhesion and Adhesives-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCeramics-
Palavras-chave: dc.subjectFatigue-
Palavras-chave: dc.subjectMilling-
Palavras-chave: dc.subjectResin composite cements-
Palavras-chave: dc.subjectSurface roughness/morphology-
Título: dc.titleIs adhesive bonding with high and low viscosity cements able to revert the negative effect of machining on the fatigue behavior of lithium disilicate glass-ceramic?-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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