Contact allergy on metals is a cause of complications in application of metal implants in human body. In clinical practice are known the patients with the Irritation Reaction (IR) and typical Contact Allergy on nickel, chromium and cobalt which are used as a components of biomaterials in implantology. The very important problem is a hypersensitivity to titanium which was recognized as a safe biomaterial for human body as far.

The idea of this research is the manufacturing the thin carbon layer on the metal implant surface and changing the biocompatibility of its.

Carbon as a biocompatible biomaterial is a diffusion barrier between material of implant and human body. Metal ions from the implant cannot penetrate form metal to tissue.

Hermetic carbon coating completely prevents agaimst developing of contact allergy after implantation.

Authors of article present the research which have been done on patients with a allergy to nickel, chromium and cobalt. The patch tests have been done on patients. These results indicate that the application of carbon coating on the surface of metal implants eliminate allergic reaction.

In this article will be present the patients with contact allergy on metals after implantation of prostheses covered by carbon coating and results of treatment.

The examinations show that metal implants with carbon coating decrease the risk of the contact allergy on metals. Biocompatible and chemical resist carbon coating additionally increases corrosion resistance of implant and thus this stable isolation layer between organism and metal is very good for short- and long-term implants.

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1. Carbon coating manufactured in RF and MW/RF plasma for detectors and electronic devices