Flexible handle for better comfort and control when cleaning hard-to-reach places. Triangular shaped bristles remove up to 25% more plaque.* Antibacterial bristles keep brush clean between uses.** Bendable neck makes cleaning back teeth easy. Recommended by dental professionals. *Compared to conventional nylon filament. Data on file. **Bristles incorporate an antibacterial agent for continuous bristle protection. Bacterial growth that may affect the bristles is inhibited. The agent in the bristles does not protect against disease.