A new technique for incorporation of TiO2 nanotubes on a pre-sintered Y-TZP and its effect on bond strength as compared to conventional air-borne particle abrasion and silicatization TiO2 nanotubes application on pre-sintered Y-TZP

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorJames B. Edwards College of Dental Medicine-
Autor(es): dc.creatorMezarina-Kanashiro, Franco Naoki-
Autor(es): dc.creatorBronze-Uhle, Erika Soares-
Autor(es): dc.creatorRizzante, Fabio Antonio Piola-
Autor(es): dc.creatorLisboa-Filho, Paulo Noronha-
Autor(es): dc.creatorBorges, Ana Flavia Sanches-
Autor(es): dc.creatorFuruse, Adilson Yoshio-
Data de aceite: dc.date.accessioned2025-08-21T21:38:12Z-
Data de disponibilização: dc.date.available2025-08-21T21:38:12Z-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2022-08-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.dental.2022.06.015-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/240326-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/240326-
Descrição: dc.descriptionObjective: This study evaluated the microshear bond strength of a resin cement to Y-TZP after different methods of TiO2 nanotubes (nTiO2) incorporation on pre-sintered Y-TZP surfaces. Methods: nTiO2 were synthesized and incorporated on Y-TZP slices as follows (n = 15): 1) nTiO2 mixed with isopropyl alcohol/manual application (MAl); 2) nTiO2 mixed with acetone/manual application (MAc); 3) nTiO2 mixed with isopropyl alcohol/high-pressure vacuum application (HPVAl); 4) nTiO2 mixed with acetone/high-pressure vacuum application (HPVAc). As controls, surfaces were sandblasted with Al2O3 (OX) or Rocatec silicatization (ROC). All ceramics were sintered after nTiO2 incorporation. Surface treatments of OX and ROC were made after sintering. Surfaces were characterized by confocal laser microscopy, scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). Resin composite cylinders (1.40 mm diameter and 1 mm height) were cemented with a resin cement, stored in water at 37 °C for 24 h and thermocycled for 10 000 cycles before microshear bond strength evaluation. Data were analyzed with one-way ANOVA and Games-Howell (α = 0.05), and fracture analysis was performed using a stereomicroscope. Results: EDS confirmed the presence of TiO2 on treated Y-TZP. The confocal analysis showed higher roughness for HPVAc and OX. There were significant differences between surface treatments (p < 0.001). HPVAl (22.96 ± 10.3), OX (34.16 ± 7.9) and ROC (27.71 ± 9.4) showed higher microshear bond strengths and were statistically similar (p > 0.05). MAC showed intermediary values, and HPVAc and MAl presented decreased bond strength, with a high percentage of premature debonding. Conclusion: High-pressure vacuum application of nTiO2 mixed with isopropyl alcohol was able to produce bond strength values compared to conventional air abrasion and Rocatec silicatization. Significance: The infiltration of TiO2 nanostructures on the pre-sintered Y-TZP is an interesting approach that can improve bond strength without the need of sandblasting methods.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionDepartment of Operative Dentistry Endodontics and Dental Materials Bauru School of Dentistry University of São Paulo-
Descrição: dc.descriptionDepartment of Physics School of Sciences São Paulo State University-
Descrição: dc.descriptionDepartment of Oral Rehabilitation at Medical University of South Carolina James B. Edwards College of Dental Medicine-
Descrição: dc.descriptionDepartment of Physics School of Sciences São Paulo State University-
Descrição: dc.descriptionFAPESP: 2015/25 827–0-
Descrição: dc.descriptionFAPESP: 2019/05427-9-
Formato: dc.formate220-e230-
Idioma: dc.languageen-
Relação: dc.relationDental Materials-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectDental ceramics-
Palavras-chave: dc.subjectNanotechnology-
Palavras-chave: dc.subjectShear bond strength-
Palavras-chave: dc.subjectZirconia-
Título: dc.titleA new technique for incorporation of TiO2 nanotubes on a pre-sintered Y-TZP and its effect on bond strength as compared to conventional air-borne particle abrasion and silicatization TiO2 nanotubes application on pre-sintered Y-TZP-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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