Investigation of the Long-Term Antibacterial Properties of Titanium by Two-Step Micro-Arc Oxidation Treatment

Recently, biofilm formation caused by bacterial adhesion and colonization has been recognized as the major cause of failure in orthopedic dental implant surgeries. In this study, a customized micro-arc oxidation (MAO) treatment technique was developed to obtain desirable antibacterial properties on Ti surfaces. The two-step MAO applied fabrication specimens with Ag with/without Zn their surface oxide layer. order simulate practical usage, analyses immersion tests were performed evaluate incorporation into resulting layer ion release behavior, respectively. Additionally, after long-term physiological saline evaluated using Gram-negative facultative anaerobic bacteria. MAO-treated containing exhibited excellent against Escherichia coli, which sustained even 6 months usage. Moreover, ions released from indicate specimen early stage, while corrosion products demonstrates its later stage.