Removes up to 100% more plaque for healthier gums vs. a regular manual toothbrush. Reduces gum inflammation by 100% vs. a regular manual toothbrush. Designed with dentists: Round head with a combination of ultra thin and regular bristles that are gentle on gums, but tough on plaque. Compatible with Oral-B rechargeable electric toothbrush handles, except for Oral-B sonic toothbrushes.