Journal
BIO-MEDICAL MATERIALS AND ENGINEERING
Volume 24, Issue 6, Pages 2109-2116Publisher
IOS PRESS
DOI: 10.3233/BME-141021
Keywords
Mesoporous zirconia coating; microtensile bond strength; surface treatment; resin cement
Funding
- Project on the Integration of Industry, Education and Research of Guangdong Province [2012B091000147]
- Open Project Program of Shanghai Institute of Ceramics, Chinese Academy of Sciences [SKL201207SIC]
- Natural Science Foundation of Guangdong Province [9151051501000072]
- Foundation for High-level Talents in Higher Education of Guangdong, China [2011-68]
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The effect of zirconia surface treatment by mesoporous zirconia coating on the microtensile bond strength (MTBS) between zirconia and resin cement was investigated in this work. 160 zirconia specimens were prepared and divided into four groups according to surface treatments: (1) airborne-particle-abrasion treatment (APA); (2) glass infiltration and hydrofluoric acid treatment (GI+HF); (3) mesoporous zirconia coating (MZ); and (4) no treatment (C). The as-prepared zirconia specimens were bonded using Panavia F2.0 and RelyX Unicem. The MTBS values were tested using a universal testing machine, and data were analyzed using ANOVA and SNK methods (alpha=0.05). The MTBS values obtained after GI+HF and MZ treatments were significantly higher than those obtained after APA and C treatments (P<0.05), especially for samples cemented with Panavia F2.0. The results reveal that zirconia surface treatments using GI+HF and MZ yield higher bond strength than those using APA or C, regardless of the resin cements.
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