不同溶剂对MDP提高氧化锆陶瓷粘接性能的影响

Abstract

Abstract: Objective To evaluate the influence of the phosphate eater monomer 10metacryloxydecyl dihydrogen phosphate (MDP) on resin bonding of yttriastabilized tetragonal zirconia polycrystals (YTZP)， performed in various solvent environments. Methods Ethanol， acetone and ethanol/acetone(1∶1) solution containing MDP were prepared as experimental primers respectively. Shear bond strength testing was performed to compare the efficacy of the three kinds of experimental primers in improving resinzirconia bond strength. The group conditioned with no primers was taken as the negative control and another with a commercially available MDPcontaining primer served as the positive control. Xray photoelectron spectroscopy (XPS)was used to investigate the formation of chemical bond on the surface of YTZP treated with the three experimental primers containing MDP. Results The negative control group presented the lowest SBS， whereas the three groups conditioned with experimental primers showed higher values， which were not significantly different from one another (P>0.05). The XPS spectra analysis detected POZr bond on the surface of YTZP treated with the MDP ethanol solution or acetone solution. Conclusion No matter ethanol， acetone， or the mixing of the two as the solvent， the MDP can improve the resin bond strength of zirconia. 

Key words: zirconia, bond strength, phosphate monomer, primer, surface treatment

CLC Number:

R783.1

References

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Effect of different solvents in MDPcontaining zirconia primers on improving bonding property of zirconia

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