J Korean Acad Prosthodont.  2011 Jan;49(1):49-56. 10.4047/jkap.2011.49.1.49.

Influence of sandblasting and primer on shear bond strength of resin cement to zirconia

Affiliations
  • 1Department of Prosthodontics, Division of Dentistry, Graduate School, Kyung-Hee University, Seoul, Korea. yhwoo@khu.ac.kr

Abstract

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 microm Al2O3 sandblasting (S50),110 microm Al2O3 sandblasting (S110), 50 microm Al2O3 and primer (Z-Prime Plus, Bisco Inc) (S50z) and 110 microm Al2O3 and primer (Z-Prime Plus) (S110z). Two resin-based luting cements (Calibra, Panavia F) were used to build 2 mm-diameter 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 (alpha=.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.

Keyword

Zirconia; Surface treatment; Primer; Resin cement; Bond strength
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