Sol-Gel Synthesis and Characterization of YSZ Nanofillers for Dental Cements at Different Temperatures.

Autor: Beketova A; Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece., Theocharidou A; Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece., Tsamesidis I; Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece., Rigos AE; Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece., Pouroutzidou GK; School of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece., Tzanakakis EC; School of Dentistry, National and Kapodistrian University, 10679 Athens, Greece., Kourtidou D; School of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece., Liverani L; Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany., Ospina MA; Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany., Anastasiou A; Department of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13AL, UK., Tzoutzas IG; School of Dentistry, National and Kapodistrian University, 10679 Athens, Greece., Kontonasaki E; Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
Jazyk: angličtina
Zdroj: Dentistry journal [Dent J (Basel)] 2021 Oct 29; Vol. 9 (11). Date of Electronic Publication: 2021 Oct 29.
DOI: 10.3390/dj9110128
Abstrakt: Background: Yttria-stabilized zirconia nanoparticles can be applied as fillers to improve the mechanical and antibacterial properties of luting cement. The aim of this study was to synthesize yttria-stabilized zirconia nanoparticles by the sol-gel method and to investigate their composition, structure, morphology and biological properties.
Methods: Nanopowders of ZrO 2 7 wt% Y 2 O 3 (nY-ZrO) were synthesized by the sol-gel method and were sintered at three different temperatures: 800, 1000 and 1200 °C, and their composition, size and morphology were investigated. The biocompatibility was investigated with human gingival fibroblasts (hGFs), while reactive oxygen species (ROS) production was evaluated through fluorescence analysis.
Results: All synthesized materials were composed of tetragonal zirconia, while nanopowders sintered at 800 °C and 1000 °C additionally contained 5 and 20 wt% of the cubic phase. By increasing the calcination temperature, the crystalline size of the nanoparticles increased from 12.1 nm for nY-ZrO800 to 47.2 nm for nY-ZrO1200. Nano-sized particles with good dispersion and low agglomeration were received. Cell culture studies with human gingival fibroblasts verified the nanopowders' biocompatibility and their ROS scavenging activity.
Conclusions: the obtained sol-gel derived nanopowders showed suitable properties to be potentially used as nanofillers for dental luting cement.
Databáze: MEDLINE
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