Abstract:

This study aims to determine the corrosion behavior and antimicrobial effect of the silver layer deposited on the surface of the Ti6Al4V alloy, which is used as a dental implant material, by the PVD (Magnetron Sputtering) method. Coatings were obtained using different deposition times under the same coating conditions. The cross-sectional morphologies of the coatings were determined using scanning electron microscopy (SEM), and the phases were determined using X-ray diffraction (XRD). Corrosion experiments on PVD-coated and untreated Ti6Al4V samples were carried out in Kokubo's simulated body fluid (SBF) pH 7.4 and 36.5 °C solution and under normal atmospheric conditions. In addition, the antibacterial properties of the coating were investigated by applying E. coli (Escherichia coli) and S. aureus (Staphylococcus aureus) microorganisms on the surfaces of the samples in vitro antibacterial activity experiments. The plate counting method was used to measure its antibacterial properties. According to the XRD results, the homogeneity of the coating layers on the surfaces of the samples was also supported by the section morphologies obtained by SEM analysis. The potentiodynamic polarization test results show that corrosion resistance increases after silver plating. As a result of in vitro antibacterial activity tests, the adhesion of E. Coli and S. Aureus microorganisms in the PVD-coated samples and the less outgrowth of the uncoated samples showed that the coating was suitable in terms of antibacterial.

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