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Beketova A, Theocharidou A, Tsamesidis I, Rigos AE, Pouroutzidou GK, Tzanakakis EGC, Kourtidou D, Liverani L, Ospina MA, Anastasiou A, Tzoutzas IG, Kontonasaki E. Sol-Gel Synthesis and Characterization of YSZ Nanofillers for Dental Cements at Different Temperatures. Dent J (Basel) 2021; 9:dj9110128. [PMID: 34821592 PMCID: PMC8619532 DOI: 10.3390/dj9110128] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/23/2021] [Accepted: 10/26/2021] [Indexed: 11/16/2022] Open
Abstract
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 ZrO2 7 wt% Y2O3 (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.
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Affiliation(s)
- Anastasia Beketova
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.B.); (A.T.); (I.T.); (A.E.R.)
| | - Anna Theocharidou
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.B.); (A.T.); (I.T.); (A.E.R.)
| | - Ioannis Tsamesidis
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.B.); (A.T.); (I.T.); (A.E.R.)
| | - Athanasios E. Rigos
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.B.); (A.T.); (I.T.); (A.E.R.)
| | - Georgia K. Pouroutzidou
- School of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (G.K.P.); (D.K.)
| | | | - Dimitra Kourtidou
- School of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (G.K.P.); (D.K.)
| | - Liliana Liverani
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; (L.L.); (M.A.O.)
| | - Marcela Arango Ospina
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; (L.L.); (M.A.O.)
| | - Antonios Anastasiou
- Department of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13AL, UK;
| | - Ioannis G. Tzoutzas
- School of Dentistry, National and Kapodistrian University, 10679 Athens, Greece; (E.-G.C.T.); (I.G.T.)
| | - Eleana Kontonasaki
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.B.); (A.T.); (I.T.); (A.E.R.)
- Correspondence: ; Tel.: +30-2310-999517
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Effendi MC, Taufiq A, Bachtiar BM, Bachtiar EW, Herda E. The role of NMT induction on odontogenic proliferation and differentiation of dental pulp stem cells. Heliyon 2021; 7:e06598. [PMID: 33937538 PMCID: PMC8079446 DOI: 10.1016/j.heliyon.2021.e06598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/29/2021] [Accepted: 03/23/2021] [Indexed: 11/28/2022] Open
Abstract
This study was conducted to investigate the odontogenic proliferation and differentiation of dental pulp stem cells (DPSCs) after induction by nanoparticle mineral trioxide (NMT). DPSCs were isolated from permanent teeth and placed in tubes containing Dulbecco's modified Eagle's medium, followed by immunocytochemistry analysis. The viability of DPSCs exposed to NMT was measured using MTT assay with trypan blue dye exclusion. Alkaline phosphatase (ALP) activity was evaluated using ALP colorimetric reactions by reacting NMT supernatants with fluorescent-specific ALP substrates. The concentration of osteocalcin was determined using an instant human osteocalcin enzyme-linked immunosorbent assay (ELISA) kit. A human dentin sialophosphoprotein (DSPP) ELISA kit coated with anti-human DSPP antibody was employed to measure DSPP levels. There was a significant difference between ALP activity after exposing the cells to NMT and trioxide mineral aggregate on days 3, 7, and 21. Osteocalcin activity showed a significant difference on days 3, 7, 14, and 21. There was a significant difference in DSPP levels on days 7 and 21. DPSCs exposed to NMT and to trioxide mineral aggregate showed extracellular matrix formation on day 7 and 14, respectively. Furthermore, NMT may effectively increase the proliferation and differentiation of DPSCs as well as their maturation toward odontoblasts.
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Affiliation(s)
- Muhammad Chair Effendi
- Department of Pediatric Dentistry, Faculty of Dentistry, Universitas Brawijaya, Indonesia
| | - Ahmad Taufiq
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Indonesia
| | - Boy Muchlis Bachtiar
- Department of Oral Biology, Faculty of Dentistry, Universitas Indonesia, Indonesia
| | | | - Ellyza Herda
- Department of Dental Materials, Faculty of Dentistry, Universitas Indonesia, Indonesia
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Application of reference point indentation for micro-mechanical surface characterization of calcium silicate based dental materials. Biomed Microdevices 2016; 18:25. [DOI: 10.1007/s10544-016-0047-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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