Microtensile bond strength of a resin cement to silica-coated and silanized in-ceram zirconia before and after aging
Nenhuma Miniatura disponível
Data
2007-01-01
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
Purpose: This study compared the microtensile bond strength of resin-based cement (Panavia F) to silica-coated, silanized, glass-infiltrated high-alumina zirconia (In-Ceram Zirconia) ceramic in dry conditions and after various aging regimens. Materials and Methods: The specimens were placed in 1 of 4 groups: group 1: dry conditions (immediate testing without aging); group 2: water storage at 37°C for 150 days; group 3: 150 days of water storage followed by thermocycling (× 12,000, 5°C to 55°C); group 4: water storage for 300 days; group 5: water storage for 300 days followed by thermocycling. Results: Group 1 showed a significantly higher microtensile bond strength value (26.2 ± 1 MPa) than the other aging regimens (6.5 ± 1, 6.2 ± 2, 4.5 ± 1, 4.3 ± 1 MPa for groups 2, 3, 4, and 5, respectively) (P < .01). Conclusion: Satisfactory results were seen in dry conditions, but water storage and thermocycling resulted in significantly weaker bonds between the resin cement and the zirconia.
Descrição
Palavras-chave
In Ceram Zirconia, In-Ceram Zirconia, Panavia Fluoro, Panavia-Fluoro, resin cement, unclassified drug, water, chemistry, conference paper, heat, tensile strength, time, tooth prosthesis, Dental Porcelain, Heat, Resin Cements, Tensile Strength, Time Factors, Water
Como citar
International Journal of Prosthodontics, v. 20, n. 1, p. 70-72, 2007.