Bond Strength between Different Zirconia-Based Ceramics and Resin Cement before and after Aging

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dc.contributor.authorSilveira, Marcos Paulo Motta [UNESP]
dc.contributor.authorRamos, Nathália de Carvalho [UNESP]
dc.contributor.authorLopes, Guilherme da Rocha Scalzer [UNESP]
dc.contributor.authorTribst, João Paulo Mendes
dc.contributor.authorBottino, Marco Antonio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversity of Taubaté (UNITAU)
dc.contributor.institutionThe University of Amsterdam and Vrije Universiteit
dc.date.accessioned2023-07-29T15:12:37Z
dc.date.available2023-07-29T15:12:37Z
dc.date.issued2022-10-01
dc.description.abstractThe objective of this study was to evaluate the bond strength of different stabilized zirconias with resin cement and evaluate the susceptibility to thermal aging of the adhesive interface. Zirconia discs (Vita Zahnfabrik, Bad Säckingen, Germany) were obtained: 3Y-TZP first generation (translucent), 3Y-TZP third generation (high-translucent), 4Y-PSZ (super-translucent), and 5Y-PSZ (extra-translucent). Each disc had its surface polished with a standardized protocol. The specimens were cleaned and sintered according to the manufacturer’s recommendation (conventionally: ~12 h). However, 3Y-TZP groups were subdivided into subgroups and sintered following the speed sintering process (~80 min). After their sintering shrinkage, the dimensions of the final discs were 12 mm × 2 mm. The specimens were blasted with 50 μm aluminum oxide (1 cm distance, 2 bar pressure, and 2 s/cm²), cleaned, and silanized with an MDP primer. After the surface treatment, a resin cement cylinder was built on the ceramic surface (Ø = 1 mm; h = 2 mm). Half of the specimens of each group were subjected to a microshear bond strength test in a universal testing machine after 24 h of cementation, while the other half were subjected to thermocycling prior to the bond strength test (6000 cycles; 5 °C–55 °C, 30 s for each bath). Bond strength data were submitted to two-way ANOVA and Tukey’s test (95%), as well as Weibull analysis, to determine adhesive reliability. Bond strength was statistically different among the materials, and only 3Y-TZP third generation and 4Y-PSZ were not affected by thermal aging. The speed sintering method was statistically similar to the conventional process for 3Y-TZP first generation. However, 3Y-TZP third generation showed higher immediate bond strength when speed sintered. The Weibull modulus was superior for conventional 3Y-TZP third generation and 4Y-PSZ. In this study, thermal aging caused a degradation of the adhesive interfaces of 3Y-TZP first generation and 5Y-PSZ with the resin cement; however, it did not affect the interfaces of 3Y-TZP third generation and 4Y-PSZ. The speed sintering method did not affect the long-term bond strength with the resin cement. Adhesive reliability was superior for 3Y-TZP third generation and 4Y-PSZ.en
dc.description.affiliationDepartment of Biomaterials Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (Unesp)
dc.description.affiliationDepartment of Dentistry University of Taubaté (UNITAU)
dc.description.affiliationDepartment of Oral Regenerative Medicine Academic Centre for Dentistry Amsterdam (ACTA) The University of Amsterdam and Vrije Universiteit
dc.description.affiliationUnespDepartment of Biomaterials Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (Unesp)
dc.identifierhttp://dx.doi.org/10.3390/coatings12101601
dc.identifier.citationCoatings, v. 12, n. 10, 2022.
dc.identifier.doi10.3390/coatings12101601
dc.identifier.issn2079-6412
dc.identifier.scopus2-s2.0-85140801703
dc.identifier.urihttp://hdl.handle.net/11449/249310
dc.language.isoeng
dc.relation.ispartofCoatings
dc.sourceScopus
dc.subjectdental materials
dc.subjectmicroshear bond strength
dc.subjectresin cements
dc.subjectzirconia
dc.titleBond Strength between Different Zirconia-Based Ceramics and Resin Cement before and after Agingen
dc.typeArtigo
unesp.author.orcid0000-0002-0977-5350[2]
unesp.author.orcid0000-0002-4310-0082[3]
unesp.author.orcid0000-0002-5412-3546[4]

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