Oral-B Pro Sensitive Clean has extra-gentle filaments for gums, as well as classic filaments that are tough on plaque. It removes up to 100% more plaque and reduces gum inflammation by up to 100% compared to a manual toothbrush. Genuine Oral-B brush heads feature new X-shaped filaments that clean in areas where rounded filaments can't. Guaranteed to work with all Oral-B rechargeable electric toothbrushes except Pulsonic and iO.