期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 105, 期 6, 页码 3909-3924出版社
WILEY
DOI: 10.1111/jace.18417
关键词
dental replacement; gelcasting; nanoparticles; strength; translucency; yttria stabilized; zirconia
资金
- Czech Science Foundation [20-20175S]
- Ministry of Education, Youth and Sports of the Czech Republic (MEYS CR) [LTACH19034, LM2018110]
- MEYS CR
- National Key R&D Program of China [2018YFE0109100]
- Ministry of Science and Technology, China
In this investigation, dental 3Y-TZP ceramics with excellent strength and enhanced translucency were developed. The applicability and resistance to low-temperature degradation of the new dental ceramics were demonstrated.
Tetragonal zirconia polycrystals (TZP) represent a favorite material for monolithic ceramic dental restorations. However, all approaches employed so far to improve the translucency of dental zirconia ceramics are accompanied by a significant decline in strength. In this investigation, we developed dental 3Y-TZP ceramics that can provide excellent strength combined with enhanced translucency. The machinable tetragonal zirconia discs and blocks were prepared from fine mesostructured zirconia particles stabilized with 3 mol% of yttria using the gelcasting method. Zirconia ceramics with an average biaxial strength of 1184 MPa and translucency of 41.1% for a 1 mm thick sample were obtained. Due to its unique microstructure, this tetragonal ceramic provided a favorable combination of high translucency comparable to the high-translucent, tetragonal/cubic 4Y-TZP and very high strength achievable only in the pure tetragonal 3Y-TZP. The applicability and resistance to low-temperature degradation of the new dental ceramics was demonstrated.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据