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Proceedings Paper

Optimal properties for coated titanium implants with the hydroxyapatite layer formed by the pulsed laser deposition technique
Author(s): Lucia Himmlova; Tatjana Dostalova; Miroslav Jelinek; Jirina Bartova; V. Pesakova; M. Adam
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Paper Abstract

Pulsed laser deposition technique allow to 'tailor' bioceramic coat for metal implants by the change of deposition conditions. Each attribute is influenced by the several deposition parameters and each parameter change several various properties. Problem caused that many parameters has an opposite function and improvement of one property is followed by deterioration of other attribute. This study monitor influence of each single deposition parameter and evaluate its importance form the point of view of coat properties. For deposition KrF excimer laser in stainless-steel deposition chamber was used. Deposition conditions (ambient composition and pressures, metallic substrate temperature, energy density and target-substrate distance) were changed according to the film properties. A non-coated titanium implant was used as a control. Films with promising mechanical quality underwent an in vitro biological tests -- measurement of proliferation activity, observing cell interactions with macrophages, fibroblasts, testing toxicity of percolates, observing a solubility of hydroxyapatite (HA) coat. Deposition conditions corresponding with the optimal mechanical and biochemical properties are: metal temperature 490 degrees Celsius, ambient-mixture of argon and water vapor, energy density 3 Jcm-2, target-substrate distance 7.5 cm.

Paper Details

Date Published: 4 February 1999
PDF: 10 pages
Proc. SPIE 3564, Medical Applications of Lasers in Dermatology, Cardiology, Ophthalmology, and Dentistry II, (4 February 1999); doi: 10.1117/12.339162
Show Author Affiliations
Lucia Himmlova, Institute of Dental Research (Czech Republic)
Tatjana Dostalova, Institute of Dental Research (Czech Republic)
Miroslav Jelinek, Institute of Physics (Czech Republic)
Jirina Bartova, Institute of Dental Research (Czech Republic)
V. Pesakova, Institute of Revmatology (Czech Republic)
M. Adam, Institute of Revmatology (Czech Republic)


Published in SPIE Proceedings Vol. 3564:
Medical Applications of Lasers in Dermatology, Cardiology, Ophthalmology, and Dentistry II
Gregory B. Altshuler; Stefan Andersson-Engels; Reginald Birngruber; Peter Bjerring; Adolf Friedrich Fercher; Herbert J. Geschwind; Raimund Hibst; Herbert Hoenigsmann; Frederic Laffitte; Hericus J. C. M. Sterenborg, Editor(s)

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