Electrochemical corrosion behavior and MG-63 osteoblast-like cell response of surface-treated titanium

Commercially pure titanium is used as a clinical implant material for many orthopedic and dental implant devices owing to its excellent corrosion resistance and good biocompatibility. However, there remains concern over the release of metal ions from prostheses and unresolved questions about its beh...

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Bibliographic Details
Published in:Metals and materials international 2004-10, Vol.10 (5), p.439-446
Main Authors: Kim, Hak-Kwan, Jang, Ju-Woong
Format: Article
Language:English
Subjects:
Alloys
Biocompatibility
Corrosion resistance
Dental implants
Electrochemical corrosion
Morphology
Nitric acid
Orthopedics
Osteoblasts
Oxidation
Phase transitions
Prostheses
Surface roughness
Surface treatment
Thermal transformations
Titanium
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Summary:Commercially pure titanium is used as a clinical implant material for many orthopedic and dental implant devices owing to its excellent corrosion resistance and good biocompatibility. However, there remains concern over the release of metal ions from prostheses and unresolved questions about its behavior in a biological environment. Our research investigated the influence of surface oxide thickness and phase on the corrosion resistance in 0.9% NaCl solution by potentiostat and XRD. Also, the MG-63 osteoblast like cell morphology and proliferation were studied to evaluate the biocompatibility in terms of surface treatment. It is demonstrated that a substantial decrease in the current density may be attained due to surface oxide thickening and phase transformation by thermal oxidation. The osteoblast adhesion morphology and proliferation data indicated that the osteoblast cell response is not conspicuously influenced by the thermal oxidation and nitric acid passivation treatments but by surface roughness and porosity of 3rd networking.
ISSN:1598-9623
2005-4149
DOI:10.1007/BF03027346