METHOD FOR DENTAL IMPLANT PARTS MANUFACTURE FROM ZIRCONIUM Russian patent published in 2017 - IPC A61F2/00 

FIELD: medicine.

SUBSTANCE: implant is attached to the engine shaft end and placed in the chamber. Steam is supplied to the implant through the steam pipe. The engine and the laser are turned on. The implant surface under the action of the laser beam is evenly heated, and steam under the action of laser irradiation and elevated temperature forms positive hydrogen ions and negatively charged ions of the hydroxyl group. Under the influence of elevated temperature created by laser radiation, zirconium, on the basis of which the implant is made, begins to actively interact with negatively charged ions of hydroxyl groups in the steam. As a result of this interaction, the implant surface is covered with a layer of zirconium hydroxide, which has a significantly lower hardness than that of the implant zirconium base. At that, if the implant surface is irradiated by even rotation at a frequency of 0.5-0.4 Hz for 40-60 s, the zirconium hydroxide layer uniformly covers the treated implant surface and its hardness becomes less than the hardness of the alveolar bone. To treat the implant surface with a drug, it is removed from the chamber after irradiation and placed in a capsule. The air is pumped out of the capsule. When the rare gases in the capsule reach a residual pressure in the range (3÷4) kPa, the capsule is filled with a drug solution or a biocompatible solution containing solid microparticles of elements with bactericidal and anticoagulant properties. After the capsule is filled with the said biological solution and a pressure of (125÷152) kPa is reached in the capsule, the biological solution is poured into a storage tank. After that, the implant with the applied liquid-phase film is removed from the tank and installed in a pre-formed bone channel.

EFFECT: method allows to reduce labour intensity, significantly improve implants biocompatibility and osseointegration.

2 dwg, 1 ex