Implantology.
2020 Jun;24(2):76-82. 10.32542/implantology.202008.
The Effect of ZrO2 Slurry Application to the Pre-sintered Zirconia Surface on Bonding Strength
- Affiliations
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- 1Doctoral student, Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, School of Dentistry, Pusan National University, Yangsan, Korea
- 2Graduate student, Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, School of Dentistry, Pusan National University, Yangsan, Korea
- 3Professor, Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, School of Dentistry, Pusan National University, Yangsan, Korea
- 4CEO, DMAX Co. Ltd., Daegu, Korea
- KMID: 2507355
- DOI: http://doi.org/10.32542/implantology.202008
Abstract
- Purpose
This study was conducted to evaluate the roughness changes of zirconia surface after applying three different concentrations of ZrO2 slurry (ZirADD, PNUADD, Busan, Korea) to the pre-sintered zirconia surface and shear bond strength between zirconia and self-adhesive resin cement.
Materials and Methods
Experimental groups were classified into control and three test groups according to the surface treatment with different slurry concentration (15% (ZA15), 30% (ZA30), and 50% (ZA50) group). After sintering all the specimen, roughness change was measured, and bond strength of the self-adhesive resin cement was examined.
Results
Surface roughness values(Ra) significantly increased after applying ZrO2 slurry. ZA50 group showed the highest surface roughness value compared to others (p < .05). But the shear bond strength value (MPa) showed that ZA30 group was the highest value among the groups (p < .05).
Conclusion
Within the limitations of this study, ZrO2 slurry application on pre-sintered zirconia surface can be an effective method to obtain strong bond between zirconia and self-adhesive resin cement by increasing zirconia surface roughness after zirconia sintering process.
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