The oral b smart series 4000 3d white eletric toothbrush features a professionally inspired design brush head which surrounds each tooth and the dynamic cleaning action adapts to your teeth as it oscillates rotates and pulsates to break up and remove up to 100 per cent more plaque than a regular manual toothbrush approved by the british dental health foundation featuring superior 3d technology from oral b which both pulsates oscillates and rotates for a thorough and effective clean