The relevance of the use of superelastic titanium alloys in medicine is due to biomechanical advantages when interacting with the tissues of the body. To date, such an alloy is known - titanium nickelide, but the high content of nickel limits its use. Superelastic alloys of titanium (titanium-niobium-zirconium and titanium-niobium-tantalum) are more favorable in comparison with titanium for dental implants due to physico-mechanical properties closer to bone tissue. Animal morphological studies of the biocompatibility of these alloys in comparison with titanium have been carried out. Control of the interaction with the bone tissue of titanium alloy samples was 30 and 90 days; The method of investigation is scanning electron microscopy and microprobe element analysis of tissue along the boundary with titanium alloys. The proximity of the morphological pattern and elemental composition of bone tissue along the border with titanium and superelastic alloys of titanium is shown, both at a control period of 30 days (in contact with alloys, a poorly mineralized connective tissue is found) and under control of 90 days (the border with titanium alloys is covered with mineralized bone tissue, similar in composition to the surrounding bone tissue). based on niobium with bone tissue.

In the article options of chipping of the ceramic veneer metal-ceramic fixed prostheses Zirconia or frameworks, including those based on dental implants. The variants of elimination of such defects are described by the degree of complication. Special attention is paid to the method of restoration of defective ceramic cladding by means of preparation of facing ceramics, scanning by CEREC intraoral scanner, milling of ceramic restoration and its fixation to the place of chipping. The author’s experience from six months to five years has shown the high efficiency of this method of repair of ceramic cladding.

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Experimental electrochemical studies simulating the contact of a dental implant of titanium nickelide and metal frames of a denture covering an implant were carried out. The contact currents in artificial saliva were measured under stationary conditions and when updating the denture surface. Different amounts of the current depending on the denture frame material were registered.