In vivo dissolution behavior of various RF magnetron-sputtered Ca-P coatings on roughened titanium implants.

RF magnetron sputter deposition was used to produce 0.1, 1.0 and 4.

Influence of annealing temperature on RF magnetron sputtered calcium phosphate coatings.

The effect of different annealing temperatures on the characteristics of thin calcium phosphate coatings fabricated by radiofrequency magnetron sputtering was studied. Annealing of the as-sputtered films was necessary to change the amorphous coating to a crystalline coating. The films were annealed for 2 and 4 h at 400, 600, 800, 1000 and 1200 degrees C under dry argon or argon and water vapour flow.

Influence of discharge power level on the properties of hydroxyapatite films deposited on Ti6A14V with RF magnetron sputtering.

The effects of discharge radiofrequency (RF) power and film thickness were studied on the characteristics of Ca5(PO4)3OH (hydroxyapatite) thin films fabricated by RF magnetron sputtering. The structure and chemical composition were investigated with alpha-step (thickness), scanning electron microscopy (SEM), X-ray diffraction (XRD), Rutherford backscattering spectrometry (RBS), and infrared absorption spectrometry (FTIR). The films were analyzed as-sputtered and after annealing at 550 degrees C under argon flow.

Study of the surface characteristics of magnetron-sputter calcium phosphate coatings.

Plasma-sprayed hydroxylapatite coatings on metals such as titanium have been investigated for many years and have shown a good biocompatibility when implanted in bony tissues. Radiofrequency magnetron sputtering was used as an alternative method to deposit thin films of hydroxylapatite on titanium substrates. X-ray diffraction demonstrated that the sputtered layer was crystalline with a preferred (001) crystallographic orientation with the C-axis perpendicular to the substrate surface.

[Preserving alveolar bone with submucosal hydroxyapatite].

In this article the use of hydroxyapatite granules to prevent alveolar bone loss after extraction of teeth is described. Twenty-six alveoli were treated in the mandible and the maxilla. The used method resulted in a delayed healing of the wound and loss of a part of the implants.