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Etibarlı N, Üstün Ö, Akan T. Effect of nonthermal argon plasma treatment on the surface properties and phase transformation of zirconia. J Oral Sci 2023; 65:136-140. [PMID: 36990759 DOI: 10.2334/josnusd.22-0420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
PURPOSE This study aims to evaluate the effect of applying different parameters of nonthermal argon plasma (NTAP) on the surface roughness and phase transformation of yttrium-stabilized tetragonal zirconia polycrystalline (Y-TZP) ceramics. METHODS A total of 60 zirconia samples were prepared and randomly divided into six groups according to their surface treatments (n = 10). Group 1: control group; Group 2: argon plasma with a flow rate of 5 lt/min for 4 min; Group 3: 8 lt/min for 4 min; Group 4: 8 lt/min for 2 min; Group 5: 5 l/min for 2 min; Group 6: air abrasion with Al2O3 particle. The surface roughness was measured with a profilometer, and surface topography was observed using scanning electron microscopy (SEM). X-ray diffraction (XRD) analysis was performed to investigate the phase transformation. RESULTS The air abrasion group showed the highest surface roughness. The lowest relative monoclinic phase amount (Xm) was observed in the control group (0.4%), and the highest Xm value was observed in group 6 (7.8%). CONCLUSION While the air abrasion group showed the highest average surface roughness, it also caused the highest phase transformation. With a flow rate of 8 lt/min for 2 min NTAP treatment increased the surface roughness without causing significant phase transformation.
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Affiliation(s)
| | - Özlem Üstün
- Department of Prosthodontics, Faculty of Dentistry, Akdeniz University
| | - Tamer Akan
- Department of Physics, Faculty of Science and Letters, Osmangazi University
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Bozogullari HN, Citir Yucel H, Ustun O, Akan T, Ozer F. The effect of nonthermal argon plasma surface treatment on the fracture resistance of monolithic zirconia restorations containing tetragonal and cubic grains. J Oral Sci 2022; 64:124-128. [PMID: 35173098 DOI: 10.2334/josnusd.21-0446] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
PURPOSE The aim of this study was to investigate the effect of nonthermal argon plasma (NP) surface treatment on the fracture resistance of monolithic zirconia restorations with different microstructures. METHODS Twenty restorations were prepared from each of two tetragonal and two cubic zirconia materials (80 restorations in total). The restorations were then divided into two subgroups (n = 10) for each material according to the surface treatment applied: air abrasion or NP. The surface topography of the treated groups was examined using a scanning electron microscope. All restorations were fixed to metal dies with resin cement, subjected to thermal cycling, and then underwent fracture resistance testing with a universal testing device. Two-way ANOVA and Bonferroni tests were used for statistical analysis of the data (α = 0.05). RESULTS The type of surface treatment and the type of zirconia material were shown to significantly affect the fracture resistance of the restorations. The air-abraded groups showed significantly higher fracture resistance (N) than the NP groups (P < 0.001). CONCLUSION The results of this study suggest that air abrasion surface treatment has a more favorable effect on the fracture resistance of tetragonal and cubic zirconia restorations than NP surface treatment.
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Affiliation(s)
| | - Hande Citir Yucel
- Department of Prosthodontics, Faculty of Dentistry, Alanya Alaaddin Keykubat University
| | - Ozlem Ustun
- Department of Prosthodontics, Faculty of Dentistry, Akdeniz University
| | - Tamer Akan
- Department of Physics, Faculty of Science and Letters, Eskisehir Osmangazi University
| | - Fusun Ozer
- Department of Preventive and Restorative Sciences, University of Pennsylvania School of Dental Medicine
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Chailakhyan RK, Grosheva AG, Gerasimov YV, Vorob'eva NN, Ermolaeva SA, Sysolyatina EV, Kazakova MV, Akishev YS, Petryakov AV, Sidoruk KV, Burdukovskii VF, Timashev PS. Effect of Non-Thermal Plasma on Proliferative Activity and Adhesion of Multipotent Stromal Cells to Scaffolds Developed for Tissue-Engineered Constructs. Bull Exp Biol Med 2019; 167:182-188. [PMID: 31177456 DOI: 10.1007/s10517-019-04486-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Indexed: 10/26/2022]
Abstract
We studied the effect of non-thermal argon plasma on proliferative activity of bone marrow multipotent stromal cells in vitro. Treatment of stromal cell suspension with pure argon did not affect their proliferation. The cells treated with non-thermal argon plasma and explanted in the treatment medium demonstrated growth inhibition by 30-40% in comparison with the control. Multipotent stromal cells treated with plasma and after centrifugation explanted in normal medium within 12 min demonstrated accelerated growth. The total cell growth from the pellet and supernatant significantly exceeded the control values. We also analyzed adhesion and proliferative activity of multipotent stromal cells treated with non-thermal plasma on bioresorbable carriers. The cells adhered and proliferated on all types of studied samples. Adhesion properties of scaffolds differed. Caprolactone was found to be the most suitable material for adhesion and proliferation of multipotent stromal cells.
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Affiliation(s)
- R K Chailakhyan
- N. F. Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, Russia. .,Institute of Photonic Technologies, Federal Research Center for Crystallography and Photonics, Russian Academy of Sciences, Moscow, Russia. .,Institute of Regenerative Medicine, I. M. Sechenov First Moscow State Medical University, Moscow, Russia.
| | - A G Grosheva
- N. F. Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Yu V Gerasimov
- N. F. Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - N N Vorob'eva
- Institute of Photonic Technologies, Federal Research Center for Crystallography and Photonics, Russian Academy of Sciences, Moscow, Russia
| | - S A Ermolaeva
- N. F. Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, Russia.,Moscow Institute of Physics and Technology, Moscow, Russia
| | - E V Sysolyatina
- N. F. Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - M V Kazakova
- N. F. Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Yu S Akishev
- Troitsk Institute for Innovation and Fusion Research, Troitsk, Russia
| | - A V Petryakov
- Troitsk Institute for Innovation and Fusion Research, Troitsk, Russia
| | - K V Sidoruk
- Laboratory of Protein Engineering, State Research Institute of Genetics and Selection of Industrial Microorganisms, National Research Center Kurchatov Institute, Moscow, Russia
| | - V F Burdukovskii
- Baikal Institute of Nature Management, Siberian Division of the Russian Academy of Science, Ulan-Ude, Republic of Buryatia, Russia
| | - P S Timashev
- Institute of Photonic Technologies, Federal Research Center for Crystallography and Photonics, Russian Academy of Sciences, Moscow, Russia.,Institute of Regenerative Medicine, I. M. Sechenov First Moscow State Medical University, Moscow, Russia.,Department of Polymers and Composite Materials, N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, Russia
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