Department of Biomaterials, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University.
Department of Comprehensive Dentistry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University.
Dent Mater J. 2020 Mar 31;39(2):295-301. doi: 10.4012/dmj.2018-415. Epub 2019 Dec 11.
The mechanical properties of highly translucent partially stabilized zirconia (PSZ) need to be improved; however, improvement of mechanical properties often decreases translucency. To overcome this problem, a monoclinic ZrO (mZrO)/SiO dispersion was prepared and applied as a coating material for PSZ. The influence of surface treatment by the mZrO/SiO dispersion on the surface topography, crystallography, and mechanical properties of highly translucent PSZ was investigated in this study. Following the treatment, the mechanical strength of highly translucent PSZ improved by 170% compared with control, for the best mZrO/SiO dispersion ratio and heating temperature condition, while maintaining its translucency. The proposed coating is promising for improving the mechanical properties of highly translucent PSZ.
需要提高高透光性部分稳定氧化锆（PSZ）的力学性能；然而，力学性能的提高往往会降低透光率。为了解决这个问题，本研究制备了四方氧化锆（mZrO）/二氧化硅（SiO）分散体并将其用作 PSZ 的涂层材料。考察了 mZrO/SiO 分散体的表面处理对高透光 PSZ 表面形貌、结晶度和力学性能的影响。处理后，在最佳 mZrO/SiO 分散比和加热温度条件下，高透光 PSZ 的力学强度比对照样提高了 170%，同时保持其透光率。所提出的涂层有望改善高透光 PSZ 的力学性能。
