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Gelcast zirconia ceramics for dental applications combining high strength and high translucency
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SYSNO ASEP 0556648 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Gelcast zirconia ceramics for dental applications combining high strength and high translucency Author(s) Kaštyl, J. (CZ)
Šťastný, P. (CZ)
Chlup, Zdeněk (UFM-A) RID, ORCID
Song, L. (CN)
Scasnovic, E. (CZ)
Trunec, M. (CZ)Number of authors 6 Source Title Journal of the American Ceramic Society. - : Wiley - ISSN 0002-7820
Roč. 105, č. 6 (2022), s. 3909-3924Number of pages 15 s. Language eng - English Country US - United States Keywords biaxial flexural strength ; 3 balls test ; grain-size ; mechanical-properties ; tetragonal zirconia ; fracture-toughness ; aging stability ; in-vitro ; alumina ; degradation ; dental replacement ; gelcasting ; nanoparticles ; strength ; translucency ; yttria stabilized ; zirconia Subject RIV JH - Ceramics, Fire-Resistant Materials and Glass OECD category Ceramics Research Infrastructure CzechNanoLab - 90110 - Vysoké učení technické v Brně Method of publishing Limited access Institutional support UFM-A - RVO:68081723 UT WOS 000760596300001 EID SCOPUS 85125202011 DOI https://doi.org/10.1111/jace.18417 Annotation 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. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2023 Electronic address https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.18417
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