Figure 3: Number of subjects having no (0 CFU/ml) or low (< 10 CFU) MS counts in the plaque collected from the titanium alloy substrates: Non-coated titanium alloy (NC), hydrothermally induced TiO2 coating (HT), UV treated non-coated titanium alloy (UVNC) and UV treated titanium alloy with hydrothermally induced TiO2 coating (UVHT).