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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.115  No.1344 (August) (2007)  >  pp.455-459

Journal of the Ceramic Society of Japan
<<Previous article Vol.115  No.1344 (August) (2007)   pp.455 - 459 Next article>>

Development of Phosphate Glass-Ceramics for Biomedical Applications

Toshihiro KASUGA1)
1) Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology

  Some recent developments of phosphate glass-ceramic biomaterials are briefly reviewed. Bioactive calcium pyrophosphate glass-ceramics can be prepared by including small amounts of TiO2 and Na2O (totally ≤10 mol%): they are easy to be machined using conventional tools and they are strongly coated on a β-type titanium alloy using a conventional glazing technique. These materials are expected to be applicable to some surgical treatments such as custom-made implants, Kirschner-wires and so on. New types of dental materials using phosphate glass-ceramics are also discussed. Phosphate glass-ceramics containing a large amount of TiO2 (∼20 mol%) includes a functional Nasicon-type crystal, which has silver-ion exchangeability with excellent chemical durability: they are applied to a castable dental crown with bacteriostatic activity. Phosphate glass-ceramic fillers, which are rapidly sintered by CO2 laser irradiation, have been also newly developed for sealing fissures at the surface of a tooth crown.



Keyword:
Glass-ceramic, Phosphate glass, Bioactivity, Bacteriostatic activity, Machinable ceramic, Coating, Biomaterial, Dental material

Received: May 29, 2007
Published online: August 01, 2007
Copyright (c) 2007 The Ceramic Society of Japan

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