Abstract
Currently, for dental implantology, structures from porous permeable materials based on titanium and titanium nickelide have been proposed and substantiated. The main advantages of titanium in comparison with other medical materials based on metals and alloys (stainless steel, alloys based on cobalt, chromium, nickel) are high elasticity, sufficient mechanical strength, and increased corrosion resistance in biological media. Porous titanium also retains these qualities. However, titanium, including porous titanium, has some disadvantages: low shear resistance, low wear resistance, and increased fatigue. For porous titanium, these disadvantages are partially leveled after the growth of bone tissue in the pores of the implant and the formation of a composite "porous metal-bone tissue"; nevertheless, they limit the use of titanium.
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