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KMID : 0362120130350040271
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Journal of Technologic Dentistry
2013 Volume.35 No. 4 p.271 ~ p.280
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Effect of surface and heat treatment on the bond strength of veneering ceramics to zirconia(Y-TZP)
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Ahn Jae-Seok
Lee Jung-Hwan
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Abstract
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Purpose: This study was to assess the effect of surface and heat treatment on the bond strength of veneering ceramics to zirconia.
Methods: The specimens were divided into 7 groups according to surface treatment and heat treatment conditions prior to porcelain application. ten specimens from each group were subjected to a 3-point flexural test. In addition the influence of surface and heat treatment on surface roughness values and phase transformation of zirconia was evaluated. Statistical analysis was performed with one-way ANOVA and post hoc Tukey’s test.
Results: Bond strength ranged from 20.67 3.13 to 32.69 4.52. Bond strength of surface treatment group was lower than that of control group but only Al2O3 sandblasting group was significant difference. Bond strength of heat treatment group was higher than that of surface treatment group but there was no statistical significance.
Conclusion: Bond strength of veneering ceramics to zirconia was affected by surface and heat treatment.
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KEYWORD
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Bond strength, heat treatment, Surface treatment, Veneered zirconia, Y-TZP
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