alexa Reinforcement of denture base PMMA with ZrO(2) nanotubes.


Research & Reviews: Journal of Dental Sciences

Author(s): Yu W, Wang X, Tang Q, Guo M, Zhao J

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Abstract In the research described, ZrO2 nanotubes were prepared by anodization. The morphologies, crystal structure, etc. were characterised by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffractometer (XRD), and Fourier transform infrared spectroscopy (FTIR). ZrO2 nanotubes were pre-stirred with the denture base PMMA powder by a mechanical blender and mixed with MMA liquid to fabricate reinforced composites. The composites were tested by an electromechanical universal testing machine to study the influences of contents and surface-treatment effect on the reinforcement. The ZrO2 nanoparticles were also investigated for comparative purposes. Results indicated that ZrO2 nanotubes had a better reinforcement effect than ZrO2 nanoparticles, and surface-treatment would lower the reinforcement effect of the ZrO2 nanotubes which itself was significantly different from that of the ZrO2 nanoparticles. The flexural strength of the composite was maximised when 2.0wt\% untreated ZrO2 nanotubes were added. Copyright © 2014 Elsevier Ltd. All rights reserved. This article was published in J Mech Behav Biomed Mater and referenced in Research & Reviews: Journal of Dental Sciences

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