Journal of Technologic Dentistry (대한치과기공학회지)

Korean Academy of Dental Technology (대한치과기공학회)
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Effect of surface and heat treatment on the bond strength of veneering ceramics to zirconia(Y-TZP)

표면처리와 열처리가 전장도재와 지르코니아의 결합력에 미치는 영향

  • Lee, Jung-Hwan (Department of dental laboratory Technology, Gwang-ju Health University) ;
  • Ahn, Jae-Seok (Department of dental laboratory Technology, Gwang-ju Health University)
  • Received : 2013.09.04
  • Accepted : 2013.12.18
  • Published : 2013.12.30
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Abstract

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 $20.67{\pm}3.13MPa$ to $32.69{\pm}4.52$. Bond strength of surface treatment group was lower than that of control group but only $Al_2O_3$ 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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References

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