This toothbrush head features two moving brushes in one! The head moves side to side, oscillates, and pulsates! It penetrates hard-to-reach areas and is compatible with the entire lineup of Oran-B rechargeable handles, except for Oral-B sonic toothbrushes. It's #1 brand used by dentists worldwide – Oral-B (data on file). Included in pack: 3 Dual Clean brush heads
Dentists recommend changing your toothbrush every 3 months.