Sol–Gel Synthesis and Characterization of YSZ Nanofillers for Dental Cements at Different Temperatures
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, structu...
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MDPI AG
2021
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oai:doaj.org-article:3c9211c077684df4ba84025d753136c82021-11-25T17:19:57ZSol–Gel Synthesis and Characterization of YSZ Nanofillers for Dental Cements at Different Temperatures10.3390/dj91101282304-6767https://doaj.org/article/3c9211c077684df4ba84025d753136c82021-10-01T00:00:00Zhttps://www.mdpi.com/2304-6767/9/11/128https://doaj.org/toc/2304-6767Background: 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<sub>2</sub> 7 wt% Y<sub>2</sub>O<sub>3</sub> (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.Anastasia BeketovaAnna TheocharidouIoannis TsamesidisAthanasios E. RigosGeorgia K. PouroutzidouEmmanouil-George C. TzanakakisDimitra KourtidouLiliana LiveraniMarcela Arango OspinaAntonios AnastasiouIoannis G. TzoutzasEleana KontonasakiMDPI AGarticlenanoparticlechemical precipitationyttriumzirconiumgingival fibroblaststoxicity testsDentistryRK1-715ENDentistry Journal, Vol 9, Iss 128, p 128 (2021) |
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EN |
| topic |
nanoparticle chemical precipitation yttrium zirconium gingival fibroblasts toxicity tests Dentistry RK1-715 |
| spellingShingle |
nanoparticle chemical precipitation yttrium zirconium gingival fibroblasts toxicity tests Dentistry RK1-715 Anastasia Beketova Anna Theocharidou Ioannis Tsamesidis Athanasios E. Rigos Georgia K. Pouroutzidou Emmanouil-George C. Tzanakakis Dimitra Kourtidou Liliana Liverani Marcela Arango Ospina Antonios Anastasiou Ioannis G. Tzoutzas Eleana Kontonasaki Sol–Gel Synthesis and Characterization of YSZ Nanofillers for Dental Cements at Different Temperatures |
| description |
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<sub>2</sub> 7 wt% Y<sub>2</sub>O<sub>3</sub> (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. |
| format |
article |
| author |
Anastasia Beketova Anna Theocharidou Ioannis Tsamesidis Athanasios E. Rigos Georgia K. Pouroutzidou Emmanouil-George C. Tzanakakis Dimitra Kourtidou Liliana Liverani Marcela Arango Ospina Antonios Anastasiou Ioannis G. Tzoutzas Eleana Kontonasaki |
| author_facet |
Anastasia Beketova Anna Theocharidou Ioannis Tsamesidis Athanasios E. Rigos Georgia K. Pouroutzidou Emmanouil-George C. Tzanakakis Dimitra Kourtidou Liliana Liverani Marcela Arango Ospina Antonios Anastasiou Ioannis G. Tzoutzas Eleana Kontonasaki |
| author_sort |
Anastasia Beketova |
| title |
Sol–Gel Synthesis and Characterization of YSZ Nanofillers for Dental Cements at Different Temperatures |
| title_short |
Sol–Gel Synthesis and Characterization of YSZ Nanofillers for Dental Cements at Different Temperatures |
| title_full |
Sol–Gel Synthesis and Characterization of YSZ Nanofillers for Dental Cements at Different Temperatures |
| title_fullStr |
Sol–Gel Synthesis and Characterization of YSZ Nanofillers for Dental Cements at Different Temperatures |
| title_full_unstemmed |
Sol–Gel Synthesis and Characterization of YSZ Nanofillers for Dental Cements at Different Temperatures |
| title_sort |
sol–gel synthesis and characterization of ysz nanofillers for dental cements at different temperatures |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/3c9211c077684df4ba84025d753136c8 |
| work_keys_str_mv |
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