From the makers of the no.1 recommended sonic toothbrush brand by dental professionals, Philips Sonicare introduces its best brush heads ever, diamondclean brush heads. These brush heads feature angled, diamond shaped bristles which removes up to 4x more plaque vs. A manual toothbrush when using the diamond clean toothbrush after 4 weeks of use. Diamondclean brush heads also will whiten teeth in just 1 week.