Assessment of Inhibition of Biofilm Formation on Non-Thermal Plasma-Treated TiO 2 Nanotubes.
International journal of molecular sciences(2023)
Abstract
Peri-implantitis is an inflammatory disease similar to periodontitis, caused by biofilms formed on the surface of dental implants. This inflammation can spread to bone tissues and result in bone loss. Therefore, it is essential to inhibit the formation of biofilms on the surface of dental implants. Thus, this study examined the inhibition of biofilm formation by treating TiO nanotubes with heat and plasma. Commercially pure titanium specimens were anodized to form TiO nanotubes. Heat treatment was performed at 400 and 600 °C, and atmospheric pressure plasma was applied using a plasma generator (PGS-200, Expantech, Suwon, Republic of Korea). Contact angles, surface roughness, surface structure, crystal structure, and chemical compositions were measured to analyze the surface properties of the specimens. The inhibition of biofilm formation was assessed using two methods. The results of this study showed that the heat treatment of TiO nanotubes at 400 °C inhibited the adhesion of (), associated with initial biofilm formation, and that heat treatment of TiO nanotubes at 600 °C inhibited the adhesion of (), which causes peri-implantitis. Applying plasma to the TiO nanotubes heat-treated at 600 °C inhibited the adhesion of and
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Key words
TiO2 nanotube,biofilms,heat treatment,non-thermal plasma treatment,peri-implantitis
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