Sunstar. Removes up to 25% more plaque (compared to conventional nylon filament. Data on file (DOF-0001)). No. 1 Interdental brush brand (Bristles incorporate an antibacterial agent for continues bristle protection. Bacterial growth that may affect the bristles is inhibited). Antibacterial bristles (IRI MULO POS data latest 52 WKs W/E 07-14-19). Triangular shaped bristles remove up to 25% more plaque compared to conventional nylon filament. Data on file (DOF-0001)). Antibacterial bristles keep brush clean between uses (Bristles incorporate an antibacterial agent for continues bristle protection. Bacterial growth that may affect the bristles is inhibited). GUMbrand.com. Made in USA.