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KMID : 1023820180100040308
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The Journal of Advanced Prosthodontics
2018 Volume.10 No. 4 p.308 ~ p.314
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Influence of nonthermal argon plasma on the shear bond strength between zirconia and different adhesives and luting composites after artificial aging
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Pott Philipp-Cornelius
Syvari Timo-Sebastian
Stiesch Meike
Eisenburger Michael
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Abstract
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PURPOSE: Plasma activation of hydrophobic zirconia surfaces might be suitable to improve the bond strength of luting materials. The aim of this study was to analyze the influence of nonthermal argon-plasma on the shear bond strength (SBS) between zirconia and different combinations of 10-MDP adhesive systems and luting composites after artificial aging.
MATERIALS AND METHODS: Two hundred forty Y-TZP specimens were ground automatically with 165 μm grit and water cooling. Half of the specimens received surface activation with nonthermal argon-plasma. The specimens were evenly distributed into three groups according to the adhesive systems ([Futurabond U, Futurabond M, Futurabond M + DCA], VOCO GmbH, Germany, Cuxhaven) and into further two subgroups according to the luting materials ([Bifix SE, Bifix QM], VOCO GmbH). Each specimen underwent artificial aging by thermocycling and water storage. SBS was measured in a universal testing machine. Statistical analysis was performed using ANOVA and Scheffe procedure with the level of significance set to 0.05.
RESULTS: Surface activation with nonthermal plasma did not improve the bond strength between zirconia and the tested combinations of adhesive systems and luting materials. The plasma-activation trended to reveal higher bond strength if the self-etch luting material (Bifix SE) was used, irrespective of the adhesive system.
CONCLUSION: Plasma-activation seems to be suitable to improve bond strength between zirconia and self-etch resin materials. However, further research is necessary to identify the influence of varying plasma-parameters.
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KEYWORD
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Zirconia, 10 MDP-containing primer, Composite resin, Plasma activation, Argon plasma
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