PMID: 15387414Sep 25, 2004Paper

Characterisation of bioactive glass coatings on titanium substrates produced using a CO2 laser

Journal of Materials Science. Materials in Medicine
N MoritzA Yli-Urpo

Abstract

Titanium and its alloys are widely used in load-bearing bioinert implants. Bioactive glasses (BAGs) form a chemical bond with bone, but they are not suitable for load-bearing applications. Creating a BAG coating on a titanium implant could combine the best properties of both materials. The results tend to be poor when conventional firing methods are applied to coat titanium with BAG. A local application of heat to melt the glass can be achieved by a CO2 laser. A new method is introduced to create BAG coatings on titanium locally in a controlled manner, with a focused CO2 laser beam. The coatings produced by this method precipitate calcium phosphate in vitro. Processing parameters (number of coated layers, laser power, and processing atmosphere) providing a firm attachment of the glass and good in vitro bioactivity were identified. XRD analysis showed no crystallisation of the glass due to processing with the laser. EDXA indicated the formation of a calcium phosphate layer, which FTIR suggested to be a hydroxyapatite. The results show CO2 laser processing to be a promising technique for the manufacture of 30-40 microm BAG coatings on titanium.

Citations

Jul 4, 2007·Journal of Materials Science. Materials in Medicine·E A Abou Neel, J C Knowles
Apr 10, 2010·Journal of Materials Science. Materials in Medicine·Xin-Hui XieTing-Ting Tang
Apr 2, 2011·Journal of Materials Science. Materials in Medicine·Alexandra KochanowskiMichael Schlosser
Jun 16, 2005·Photomedicine and Laser Surgery
Sep 8, 2005·Photomedicine and Laser Surgery
Mar 25, 2014·Dental Materials : Official Publication of the Academy of Dental Materials·Onur OralPekka K Vallittu
Jun 11, 2009·Acta Biomaterialia·Rami MadanatHannu T Aro
Jan 24, 2021·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Hadi NaseriSahebali Manafi

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