DC plasma electrolytic oxidation treatment of gum metal for dental implants

2019 ◽  
Vol 302 ◽  
pp. 10-20 ◽  
Author(s):  
Maciej Sowa ◽  
Michał Parafiniuk ◽  
Catarina M.S. Mouzêlo ◽  
Alicja Kazek-Kęsik ◽  
Ivan S. Zhidkov ◽  
...  
Keyword(s):  
Dental Implants ◽  
Plasma Electrolytic Oxidation ◽  
Dc Plasma ◽  
Oxidation Treatment ◽  
Electrolytic Oxidation ◽  
Gum Metal ◽  
Plasma Electrolytic

scholarly journals A Comparative Study of Hydroxyapatite Coating Produced with Plasma Electrolytic Oxidation and Hydrothermal Treatment on Titanium Alloys: Ti6Al4V and Ti6Al7Nb for Dental Implants

2018 ◽  
Author(s):  
Elinor Nahum ◽  
Svetlana Lugovskoy
Keyword(s):  
Dental Implants ◽  
Plasma Electrolytic Oxidation ◽  
Water Solution ◽  
Thickness Gauge ◽  
Solution Ph ◽  
Ti Alloys ◽  
Electrolytic Oxidation ◽  
Water Ph ◽  
Mechanical Properties And Corrosion ◽  
Plasma Electrolytic

Ti and Ti alloys are materials usually used in contact with hard tissue for applications such as artificial joints and dental implants. Ti6Al4V is a very common alloy used for dental implants, owing to its good mechanical properties and corrosion resistance. Nevertheless, because of uncertainties regarding the toxicity of vanadium and its influence on the human body, other Ti alloys containing no vanadium and retaining suitable properties are used. In this work Ti6Al4V and Ti6Al7Nb were oxidized in a water solution of calcium acetate (Ca(CH3COO)2) and calcium glycerophosphate (Ca(PO4CH(CH2OH)2) by Plasma Electrolytic Oxidation (PEO) for 20 minutes and then were hydrothermally treated (HTT) in water (pH=7) and in potassium hydroxide (KOH) solution (pH=11) for 2 hours at 200°C in a pressurized reactor. The surface morphologies, elemental composition and phase components were characterized by Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and X-Ray Diffraction (XRD), respectively. The surface roughness was measured by Atomic Force Microscope (AFM) and thickness measurements were made by SEM and thickness gauge. Also, corrosion tests were made to evaluate the corrosion behavior of the two alloys. The aim of this study is to compare two viable Ti alloys, Ti6Al4V and Ti6Al7Nb, and to attain on their surface hydroxyapatite (HA) coating improving the osseointegration, as it simulates a human bone.

scholarly journals Characterization of Porous Phosphate Coatings Enriched with Magnesium or Zinc on CP Titanium Grade 2 under DC Plasma Electrolytic Oxidation

Metals ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 112 ◽  
Author(s):  
Krzysztof Rokosz ◽  
Tadeusz Hryniewicz ◽  
Sofia Gaiaschi ◽  
Patrick Chapon ◽  
Steinar Raaen ◽  
...  
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
Dc Plasma ◽  
Phosphate Coatings ◽  
Electrolytic Oxidation ◽  
Titanium Grade ◽  
Plasma Electrolytic ◽  
Porous Phosphate

Insights into plasma electrolytic oxidation treatment with particle addition

2015 ◽  
Vol 101 ◽  
pp. 201-207 ◽  
Author(s):  
Xiaopeng Lu ◽  
Carsten Blawert ◽  
Mikhail L. Zheludkevich ◽  
Karl Ulrich Kainer
Keyword(s):  
Plasma Electrolytic Oxidation ◽  
Oxidation Treatment ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic ◽  
Particle Addition

scholarly journals Bio-Functional Coating on Ti6Al4V Surface Produced by Using Plasma Electrolytic Oxidation

Metals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1124
Author(s):  
Aqmar Zakaria ◽  
Hamdi Shukor ◽  
Masahiro Todoh ◽  
Kamaruzaman Jusoff
Keyword(s):  
Dental Implants ◽  
Plasma Electrolytic Oxidation ◽  
Energy Dispersive Spectrometer ◽  
Antibacterial Properties ◽  
Functional Surface ◽  
Functional Coating ◽  
Fluoridated Hydroxyapatite ◽  
Coating Surface ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

One way to improve the biofunctionality of titanium alloys is by implementing plasma electrolytic oxidation (PEO) to incorporate bioactive elements such as fluoridated hydroxyapatite, into surface coatings of orthopaedic and dental implants. Hydroxyapatite (HAp) is known as a bioactive coating while fluorapatite (FAp) has an antibacterial effect that would enhance the bio-functionality and reduce the failure rate of orthopaedic and dental implants. The purpose of this study was to develop fluoridated hydroxyapatite as a bio-functional coating on Ti6Al4V with electrolyte containing trisodium orthophosphate, potassium hydroxide, and calcium fluoride. The coating surface and cross-section morphologies were evaluated, and the species in the electrolyte solution were found, and irregular micropores shapes were observed by field emission scanning electron microscopy (FESEM) and energy dispersive spectrometer (EDS). The phase composition of the coating surface containing TiO2 (anatase and rutile), tricalcium orthophosphate, HAp, and FAp was characterized by X-ray diffractometer (XRD). The adhesive strength of the coating was analysed by a micro-scratch test. Simulated body fluid (SBF) immersion test was performed to investigate the bioactivity of the coating. In this study, we demonstrated that the PEO technique has a good potential to develop bio-functional surface modifications that can affect the chemical composition and roughness of the coating surface. The FAp coating may provide insights for subsequent bioactive coatings while improving the antibacterial properties for orthopaedic and dental implants. Future work shall investigate the optimal amount of fluoride in the coating layer that obtains excellent results without causing adverse effects on adjacent tissue.

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