Surface modification of titanium implants using bioactive glasses with air abrasion technologies

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• 作者：Garrit Koller ; Richard J. Cook ; Ian D. Thompson ; Timothy F. Watson and Lucy Di Silvio
• 刊名：Journal of Materials Science Materials in Medicine
• 出版年：2007
• 出版时间：December, 2007
• 年：2007
• 卷：18
• 期：12
• 页码：2291-2296
• 全文大小：353.2 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Biomaterials
  Characterization and Evaluation Materials
  Polymer Sciences
  Metallic Materials
  Ceramics,Glass,Composites,Natural Materials
  Surfaces and Interfaces and Thin Films
  
• 出版者：Springer Netherlands
• ISSN：1573-4838

文摘

A growing number of surface treated titanium implants are routinely used in dental and orthopaedic surgery, with a view to enhancing integration capacity with osseous tissue. This study examines the use of bioactive glass 45S5 as an alternative abrasive and osteoproductive surface modification material. Abrasive blasting of commercially pure titanium with bioactive glass 45S5 produced an irregular finish with a surface roughness average (S_a) of 1.1 μm as determined by white light interferometry, backscattered and secondary electron microscopy. The roughness attained compares favourably with currently used implant designs. Further, Energy Dispersive X-ray Analysis (EDXA) and backscattered electron microscopy demonstrated that bioactive glass was distributed across the titanium surface and retained within fissures and roughened surface features. Being an osteoproductive material, this is advantageous as it is expected that the modified metallic surfaces will acquire osteopromotive properties, and thus be of benefit to the process of implantation in osseous tissue.