Investigation on the Osteogenic and Antibacterial Properties of Silicon Nitride-Coated Titanium Dental Implants.

The silicon nitride (SiN) coating exhibits promising potential in oral applications due to its excellent osteogenic and antibacterial properties. However, a comprehensive investigation of SiN coatings in the context of dental implants is still lacking, especially regarding their corrosion resistance and in performance. In this study, SiN coatings were prepared on a titanium surface using the nonequilibrium magnetron sputtering method. A systematic comparison among the titanium group (Ti), SiN coating group (SiN-Ti), and sandblasted and acid-etched-treated titanium group (SLA-Ti) has been conducted in and in . The results showed that the SiN-Ti group had the best corrosion resistance and antibacterial properties, which were mainly attributed to the dense structure and chemical activity of Si-O and Si-N bonds on the surface. Furthermore, the SiN-Ti group exhibited superior cellular responses in and new bone regeneration and osseointegration in , respectively. In this sense, silicon nitride coating shows promising prospects in the field of dental implantology.