QUality CONTROL BASE ON surface roughness CHARACTERISTIC – OXIDE layer on PURE titanium

Titanium, invariably for decades, is the most promising metallic material used in medicine (implantology). And its suitability is primarily determined by biotolerance, which depends on the preparation of the surface of the elements. This paper assesses the quality control of oxide layers produced on pure (medical) titanium in the process of thermal oxidation in an air atmosphere. The parameters characterizing surface roughness have been used as control parameters. It was noted that the titanium surface undergoes a slight change with short oxidation times, and the oxidation is relatively even in nature. However, with longer oxidation times (more than 45 minutes) roughness parameters change drastically, which is not always beneficial from the point of view of further use.