Oral-B Pro Sensitive Clean features ultra-soft bristles for the gums, as well as classic bristles that are tough on dental plaque. It removes up to 100% more dental plaque and reduces gum inflammation by up to 100% compared to a manual toothbrush. Authentic Oral-B brush heads are equipped with new X-shaped bristles that clean areas inaccessible to rounded bristles. Guaranteed compatibility with all Oral-B rechargeable electric toothbrushes except for Pulsonic and iO toothbrushes.