Changes in zirconia surface architecture and evaluation of shear bond strength with veneering ceramic after plasma treatment (2020)
- Authors:
- Autor USP: BONFANTE, ESTEVAM AUGUSTO - FOB
- Unidade: FOB
- Subjects: ZIRCÔNIA; CISALHAMENTO; PORCELANA DENTÁRIA; PLASMA
- Agências de fomento:
- Language: Inglês
- Abstract: To characterize the zirconia (Y-TZP) surface submitted to different surface treatments (with and without plasma associations) and to evaluate the shear bond strength (SBS) with the veneering ceramic (VC) after different aging periods. 301 Y-TZP specimens were fabricated and distributed into 7 groups (n=43): C (control): no treatment; Al: airborne abrasion with 27 μm Al2O3 particle; L: liner; P: plasma; Al+L: airborne abrasion + liner; Al+P: airborne abrasion + plasma; P+L: plasma + liner. The Y-TZP surface was characterized by SEM, EDS, AFM, roughness, and surface-free energy (SFE). XRD was used to verify the crystal structure after each surface treatment performed. SBS between Y-TZP and the VC was verified after three aging protocols: initial and after hydrothermal aging (autoclave for 5h) and thermal fatigue (30,000 baths - 5-55°C). One- (roughness and SFE) and two-way ANOVA (SBS), and Tukey's HSD test were used as a statistical analysis. For the plasma groups, a homogeneous and full surface coverage was observed on SEM and AFM, with globular formation. Peaks of Si were found for Al, L, Al+L, and P+L groups. Roughness was lower for groups C, P, and Al+P. For SFE, the highest values were found when the liner was applied. The higher monoclinic content was found for Al+L and Al+P. For the initial and after thermal fatigue, the P group presented the highest SBS values. Plasma treatment itself or associated with liner was capable to deposit a film on the zirconia surface without altering its structure and to improve the SBS with VC, even after aging.
- Imprenta:
- Source:
- Título do periódico: Brazilian Oral Research
- Volume/Número/Paginação/Ano: 1807-3107
- Conference titles: Sociedade Brasileira de Pesquisa Odontológica - SBPqO - Virtual Annual Meeting
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ABNT
BITENCOURT, S. B. et al. Changes in zirconia surface architecture and evaluation of shear bond strength with veneering ceramic after plasma treatment. Brazilian Oral Research. São Paulo: Faculdade de Odontologia de Bauru, Universidade de São Paulo. . Acesso em: 26 abr. 2024. , 2020 -
APA
Bitencourt, S. B., Bonfante, E. A., Rangel, E. C., Pesqueira, A. A., Bastos, N. A., & Santos, D. M. (2020). Changes in zirconia surface architecture and evaluation of shear bond strength with veneering ceramic after plasma treatment. Brazilian Oral Research. São Paulo: Faculdade de Odontologia de Bauru, Universidade de São Paulo. -
NLM
Bitencourt SB, Bonfante EA, Rangel EC, Pesqueira AA, Bastos NA, Santos DM. Changes in zirconia surface architecture and evaluation of shear bond strength with veneering ceramic after plasma treatment. Brazilian Oral Research. 2020 ;[citado 2024 abr. 26 ] -
Vancouver
Bitencourt SB, Bonfante EA, Rangel EC, Pesqueira AA, Bastos NA, Santos DM. Changes in zirconia surface architecture and evaluation of shear bond strength with veneering ceramic after plasma treatment. Brazilian Oral Research. 2020 ;[citado 2024 abr. 26 ] - Probabilidade de sobrevivência e distribuição de tensão em implantes de diâmetro reduzido com diferentes conicidades internas
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