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KMID : 0362420110490010049
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Journal of Korean Academy of Prosthodontics
2011 Volume.49 No. 1 p.49 ~ p.56
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Influence of sandblasting and primer on shear bond strength of resin cement to zirconia
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Lee Jung-Haeng
Kim Hyeong-Seob
Pae Ah-Ran
Woo Yi-Hyung
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Abstract
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PURPOSE: The aim of this study was to evaluate the effect of mechanical, chemical surface treatments on the zirconia-to-resin cement shear bond strength (SBS).
MATERIALS AND METHODS: Eighty zirconia discs (Lava, 3M ESPE) and eighty zirconia/alumina composite (Zirace, Acucera) were embedded in an epoxy resin base. Zirconia discs were randomly divided in to four treatment groups(10 for each manufacturer): 50 μm Al2O3 sandblasting (S50), 110 μm Al2O3 sandblasting (S110), 50 μm Al2O3 and primer (Z-Prime Plus, Bisco Inc) (S50z) and 110 μm Al2O3 and primer (Z-Prime Plus) (S110z). Two resin-based luting cements (Calibra, Panavia F) were used to build 2 mmdiameter cylinders onto the zirconia. After 24 h of storage in water, SBS testing was evaluate using a universal testing machine. Bond strength data were analyzed with one-way ANOVA, two-way ANOVA test and post hoc comparison was done using Tukey test (α= .05).
RESULTS: Groups using primer showed the high shear bond strength. The groups that did not use primer presented lower shear bond strengths.
CONCLUSION: The use of primer (Z-Prime Plus, Bisco) had significantly higher shear bond strengths.
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KEYWORD
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Zirconia, Surface treatment, Primer, Resin cement, Bond strength
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