SEM micrographs and photographs of contact areas on Rodac plates (24-h incubation) of untreated (a, b) and plasma treated (c–f) microstructured titanium surfaces without biofilm (experimental treatment sequence IV).

Plasma treatment of the titanium surfaces was performed using either a mean plasma jet power of 3 W (c, d) or 5 W (e, f). No surface alterations were detected after plasma treatment of microstructured titanium surfaces. (Magnification: SEM a, c, e: ×10,000). No microbial growth is detectable on Rodac plates after plasma treatment (b, d, f).