METHOD FOR CARRYING OUT OSSEOINTEGRATIVE IMPLANTS COATED WITH BIO-ACTIVE GLASS LAYERS SYNTHESISED IN MAGNETRON PLASMA

摘要

The invention relates to a method for coating dental implants and endoprostheses with thin layers of bioactive glass, directly from reagents as oxidic powders, thereby resulting uniform and adherent implant coatings of controlled composition and structure. According to the invention, the method consists in using a metallic target-holder support as cathode target made of SiOpowder pressed at the ambient temperature, discs of powder pressed at the ambient temperature from oxides or other network modifiers, such as CaO, MgO, Ca(PO)or NaPObeing fixed on the annular maximal sputtering zone thereof located at the intersection of electric and magnetic fields, where the plasma torus is formed, where, for carrying out the thin layers of biosilica glass, the so-made cathode target is triggered using the method of magnetron sputtering in radio-frequency regime, in Ar or Ar+Ocontrolled atmosphere, at a total working pressure in the range of 0.2...1 Pa, with reduced electric power, in the range of 30...100W, in order to maintain a synthesis temperature of less than 100°C, the distance between the target and the substrate being in the range of 25...45 mm.