Čes. stomatol. Prakt. zub. lék. (Czech Dental Journal) 1999; 99(4): 146-157
Physical and Biological Evaluation of Hydroxylapatite Films Formed on Ti6Al4V Substrates by Excimer Laser Ablation
- 1 Výzkumný ústav stomatologický, Praha, ředitel doc. MUDr. O. Krejsa, CSc.
- 2 Fyzikální ústav ČAV, Praha, ředitel RNDr. V. Dvořák, DrSc.
- 3 Výzkumný ústav chorob revmatických, Praha, ředitel prof. MUDr. M. Adam, DrSc.
Thin films of hydroxylapatite, about 500 nm, were formed on titanium alloy samples by excimer laser ablation Ten different deposition conditions were used such asdeposition atmosphere (vacuum, pure water vapours, mixture of Ar and water vapours), substrate temperature, target-substrate distance and energy density. Mechanical and physicalanalyses were carried out by Rutherford backscattering, Particle Induced X-Ray Emission, crystallinity of films by x-ray diffraction, surface morphology by Scanning Electron Microscopy and adhesion by a scratch test. Biological evaluation of samples was also performed. The fibroblast proliferation test, morphological evaluation of macrophages and activity of lymphocytes cultured in the presence of implants were implemented.
Keywords: dental implants; hydroxylapatite; titanium; fibroblasts
Published: December 1, 1999 Show citation
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