The electrochemical oxide growth behaviour on titanium in acid and alkaline electrolytes

Sul, Young‐Taeg; Johansson, Carina B.; Jeong, Yongsoo; Albrektsson, Tomas

doi:10.1016/s1350-4533(01)00050-9

Cited by 491 publications

(347 citation statements)

References 49 publications

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“…Moreover, MAO is a simple, controllable, and cost-effective method [22], the latter even more so than HA coatings. The properties of the oxide layer, such as its thickness, microstructure, roughness, and concentrations of Ca and P are easily controllable by adjusting the voltage, current, processing time, and the concentration of the electrolyte during the MAO process [14,31,32]. Despite these structural characteristics and chemical advantages, MAO has not yet been introduced and is currently being used for the surface treatment of cementless stems.…”

Section: Discussionmentioning

confidence: 99%

Enhanced Cell Integration to Titanium Alloy by Surface Treatment with Microarc Oxidation: A Pilot Study

Lim

Kwon

Sun

et al. 2009

Clinical Orthopaedics &Amp; Related Research

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Microarc oxidation (MAO) is a surface treatment that provides nanoporous pits, and thick oxide layers, and incorporates calcium and phosphorus into the coating layer of titanium alloy. We presumed such modification on the surface of titanium alloy by MAO would improve the ability of cementless stems to osseointegrate. We therefore compared the in vitro ability of cells to adhere to MAOed titanium alloy to that of two different types of surface modifications: machined and grit-blasted. We performed energy-dispersive x-ray spectroscopy and scanned electron microscopy investigations to assess the structure and morphology of the surfaces. Biologic and morphologic responses to osteoblast cell lines (SaOS-2) were then examined by measuring cell proliferation, cell differentiation (alkaline phosphatase activity), and avb3 integrin. The cell proliferation rate, alkaline phosphatase activity, and cell adhesion in the MAO group increased in comparison to those in the machined and grit-blasted groups. The osteoblast cell lines of the MAO group were also homogeneously spread on the surface, strongly adhered, and well differentiated when compared to the other groups. This method could be a reasonable option for treating the surfaces of titanium alloy for better osseointegration.

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Section: Discussionmentioning

confidence: 99%

Enhanced Cell Integration to Titanium Alloy by Surface Treatment with Microarc Oxidation: A Pilot Study

Lim

Kwon

Sun

et al. 2009

Clinical Orthopaedics &Amp; Related Research

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show abstract

“…However, this evaluation method is not precise and authors have reported different colors for oxide films having similar thicknesses. [12,13] This is because the color of oxide films does not only depend on their thickness but also on their refraction index that is affected by their composition and structure. This paper presents a simple method to discriminate the amount of oxygen coming from the oxide and from the solid solution in titanium foams.…”

mentioning

confidence: 99%

Effect of Oxygen Concentration and Distribution on the Compression Properties on Titanium Foams

Lefebvre¹,

Baril²

2008

Adv Eng Mater

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The effect of oxygen in solution and surface oxide on the properties of titanium foams under compression is discussed in this report. The authors present a simple method to discriminate the amount of oxygen coming from the oxide and from the solid solution. Oxygen in solution has an impact on the hardness, yield strength and ductility while surface oxide has little impact on the compression properties within the concentration evaluated.

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“…The tissue response to micro-arc oxidation implants is not fully understood. Sul et al [15] investigated the influence of the Ca ion on titanium surfaces implanted in rabbit bone. They observed that the bone response may be dependent on the Ca concentration and is possibly related to the formation of an electrostatic bridge between the titanium surface and adhesive biomolecules in the extracellular bone matrix.…”

Section: Discussionmentioning

confidence: 99%

“…After surface treatment, the samples were rinsed with distilled water, dried in an air furnace at 70 o C for 2 h, packed and sterilized with gamma radiation (25 kgray). The electrochemical micro-arc oxidation method has been described in previous studies [11,14,15].…”

Section: Methodsmentioning

confidence: 99%

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Titanium dental implant surfaces

Elias

2010

Matéria (Rio J.)

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Osseointegration has been defined as "a direct structural and functional connection between ordered, living bone and the surface of a load-carrying implant". However, titanium and its alloys cannot directly bond to living bone after being implanted into the body. The osseointegration of titanium dental implants is critically dependent on the implant surface properties. Various surface modifications have been proposed in order to provide commercially pure titanium with bioactive bone bonding ability. In the present work, the titanium dental implant surface morphology was modified by acid etching and electrochemical treatments with the purpose of enhancing tissue response, and decreasing the waiting time for implant loading. The results show that surface morphology, topography, roughness and chemical composition were changed by the treatments and these changes has a significant influence on osseointegration. The best results were observed in the samples submitted to the electrochemical treatment.

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The electrochemical oxide growth behaviour on titanium in acid and alkaline electrolytes

Cited by 491 publications

References 49 publications

Enhanced Cell Integration to Titanium Alloy by Surface Treatment with Microarc Oxidation: A Pilot Study

Enhanced Cell Integration to Titanium Alloy by Surface Treatment with Microarc Oxidation: A Pilot Study

Effect of Oxygen Concentration and Distribution on the Compression Properties on Titanium Foams

Titanium dental implant surfaces

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