Made of innovative bacteriostatic material SELF Cleaning Polymer that fights against bacterial proliferation, always 100% active. The brushes contain 4554 filaments. The brushes that clean deeply have a soft hardness to ensure a delicate daily hygiene of enamel and gums. The active curvature is ideal for the cleaning recommended by dentists and hygienists through the Bass technique, which provides movements between the gums and the teeth. The exclusive curvature inclined to the front, the compact end and parallel bristles allow to reach and clean more efficiently even the most hidden internal surfaces, thus maximizing the contact between the bristles, teeth and gums. Brushes with high density are always delicate when touching the teeth and gums, they remove more plaque compared to traditional ones. The rubber blades on the back of the end allow cleaning the tongue.