Graphene sheets decorated with silver in orthodontic bonding

This study aimed to modify orthodontic adhesive using graphene sheets decorated with silver nanoparticles (Ag-GS) in order to examine their mechanical and antibacterial properties after bonding with orthodontic brackets. Ag-GS was added at 0.35 and 0.55 wt% into Transbond XT and studied for its antibacterial and mechanical properties. The sample treated with 0.35 wt% Ag-GS modified orthodontic adhesive had increased mean DC score (42.8 +/- 6.7), SBS (10 +/- 2), mean ARI scores (1.5 +/- 1), and the minimal cytotoxicity effect after 72 h among the experimental groups. In comparison to 0.35 wt% Ag-GS improved orthodontic adhesive samples, 0.55 wt% Ag-GS improved orthodontic adhesive sample showed enhanced antibacterial effect to L. acidophilus after 30 days. Our study concludes that 0.35 wt% increased antibacterial capabilities significantly and showed promising results for bonding orthodontic brackets to enamel without compromising strength.

Automated summary

This study aimed to modify orthodontic adhesive using graphene sheets decorated with silver nanoparticles (Ag-GS) in order to examine their mechanical and antibacterial properties after bonding with orthodontic brackets. The results showed that the improved adhesive with 0.35 wt% Ag-GS significantly enhanced the antibacterial capability and had no cytotoxicity effect on cells after 72 hours. It also showed promising results for bonding orthodontic brackets to enamel.