Silica deposition on zirconia via room-temperature atomic layer deposition (RT-ALD): Effect on bond strength to veneering ceramic

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Toronto-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversity of Louisville-
Autor(es): dc.creatorBitencourt, Sandro Basso-
Autor(es): dc.creatorHatton, Benjamin D.-
Autor(es): dc.creatorBastos-Bitencourt, Natália Almeida-
Autor(es): dc.creatordos Santos, Daniela Micheline-
Autor(es): dc.creatorPesqueira, Aldiéris Alves-
Autor(es): dc.creatorDe Souza, Grace Mendonca-
Data de aceite: dc.date.accessioned2025-08-21T18:24:38Z-
Data de disponibilização: dc.date.available2025-08-21T18:24:38Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jmbbm.2022.105142-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/230495-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/230495-
Descrição: dc.descriptionPurpose: To develop and to characterize a hybrid interface between yttria-stabilized zirconia (Y-TZP) transformed layer and silica-based nanofilm to enable a better bonding between Y-TZP and a veneering ceramic. Material and methods: Sixty-six fully-sintered rectangular Y-TZP specimens were distributed into 6 groups, according to the surface treatment applied: C (control): no treatment; Al: 27 μm-alumina particle abrasion; Ht: hydrothermal treatment in autoclave for 15h; Si20: 20 cycles of silica deposition using room-temperature atomic layer deposition (RT-ALD); Si40: 40 cycles of RT-ALD; Ht + Si40: hydrothermal treatment followed by 40 cycles of RT-ALD. RT-ALD was performed by the sequential exposure of specimens to vapor of tetramethoxysilane orthosilicate (TMOS) and ammonium hydroxide (NH4OH). Y-TZP surface wettability and shear bond strength (SBS) between Y-TZP and the veneering ceramic were analyzed for all groups after surface treatments. One-way ANOVA and Tukey's HSD test were used for data analysis (p ≤ 0.05). Results: The highest contact angle was observed for the control group (64.46 ± 6.09 θ), while the lowest values (p < 0.001) were presented after Si20 (29.85 ± 4.23 θ) and Si40 (30.37 ± 5.51 θ) treatments. Hydrothermal treatment (49.3 ± 2.69 θ) and alumina abrasion (45.84 ± 4.12 θ) resulted in intermediate contact angle values. The highest SBS values were observed for Al (16.74 ± 1.68 MPa) and Ht (15.27 ± 2.11 MPa) groups (p < 0.018). Groups Si20 (9.66 ± 1.22 MPa), Si40 (9.33 ± 2.11 MPa), Ht + Si40 (9.37 ± 1.02 MPa) and C (12.54 ± 2.64 MPa) all resulted in similar SBS results (p > 0.998). Conclusion: The experimental treatments proposed enhanced surface wettability, but shear bond strength between Y-TZP and veneering ceramic was not improved. Alumina particle-abrasion improved SBS values while a decrease in wettability was observed.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionNatural Sciences and Engineering Research Council of Canada-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics Aracatuba School of Dentistry Sao Paulo State University (UNESP)-
Descrição: dc.descriptionMaterials Science and Engineering University of Toronto-
Descrição: dc.descriptionDepartment of Operative Dentistry Endodontics and Dental Materials Bauru School of Dentistry University of Sao Paulo-
Descrição: dc.descriptionSchool of Dentistry University of Louisville-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics Aracatuba School of Dentistry Sao Paulo State University (UNESP)-
Idioma: dc.languageen-
Relação: dc.relationJournal of the Mechanical Behavior of Biomedical Materials-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectHydrothermal treatment-
Palavras-chave: dc.subjectShear bond strength-
Palavras-chave: dc.subjectSurface hydrophilicity-
Palavras-chave: dc.subjectSurface treatment-
Título: dc.titleSilica deposition on zirconia via room-temperature atomic layer deposition (RT-ALD): Effect on bond strength to veneering ceramic-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.