Properties of experimental titanium-silver-copper alloys for dental applications
| Autor: | Keun-Taek Oh, Dong-Kuk Kang, Kyoung Nam Kim, Good-Sun Choi, Seoung-Kyun Moon |
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| Rok vydání: | 2009 |
| Předmět: |
Titanium
Silver Materials science Biocompatibility Open-circuit voltage Metallurgy Biomedical Engineering Titanium alloy chemistry.chemical_element Biocompatible Materials Microstructure Indentation hardness Cell Line Corrosion Biomaterials Dental Materials Mice X-Ray Diffraction chemistry Ultimate tensile strength Alloys Animals Copper |
| Zdroj: | Journal of Biomedical Materials Research Part B: Applied Biomaterials. :446-451 |
| ISSN: | 1552-4973 |
| Popis: | The aim of this study was to develop Ti-Ag-Cu alloys with a higher corrosion resistance, better biocompatibility, and better mechanical properties than commercially pure titanium and its alloys. The microstructure, corrosion resistance, mechanical property and cytotoxicity of the Ti-Ag-Cu alloys were investigated. The corrosion resistance was evaluated by open circuit potential measurements and potentiodynamic polarization tests in artificial saliva at 37°C. The mechanical properties were evaluated using tensile and microhardness tests. The biocompatibility was tested by evaluating the cytotoxicity of the alloys using an agar-overlay test and MTT assay. It was found that the open circuit potentials of the Ti-Ag-Cu alloys were higher than that of pure Ti. However, the passive current densities of the Ti-Ag-Cu alloys were similar to that of pure titanium. The mechanical properties improved with increasing Ag and Cu content. All the Ti-Ag-Cu alloys examined were found to be noncytotoxic similar to pure Ti. Therefore, Ti-Ag-Cu alloys can be used as biomaterials in the dental field. © 2009 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2009 |
| Databáze: | OpenAIRE |
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