Surface treatment of dental implants with high-power pulsed ion beams

Abstract

The objective of the present research is development of НРРІВ technology for surface processing of compact components with a complex shape. The surface state of the dental implants from titanium alloys before and after irradiation and long time operation was investigated by Auger electron spectroscopy, scanning electron microscopy, X-ray structural analysis, optical metallography methods. It is shown that the homogeneous state in the surface layer of titanium alloys is formed due to the irradiation (carbon ions and protons, energy of ions is equal to 300 keV, density of ion energy in a pulse achieves 1-5 J/cm^). This state is characterized by a low amount of the impurities and a fine dispersional structure formed as a result of high speed crystallization. Thus, HPPIB irradiation of the dental implants leads to formation of developed microrelief and the decrease of impurities content on the surface. As a result, this treatment allows one to achieve a good cohesion between the implants and a body tissue. The latter allows the conclusion that biocompatibility of the dental titanium implants produced by can be improved using HPPIB treatment.