(hashtag) 1. Trust the brush dentists use the most worldwide. Crossaction. Clinically proven. 6x more plaque removal. Interchangeable brush head fits most Oral-B toothbrushes. Does not fit: IO Rechargeable. 3D White Battery. Complete Battery. Gum Care Battery. 1) Perfectly Angled Bristles remove up to 500% more plaque (vs. a regular manual toothbrush when used on Pro1000 and up handles). 2) MaxClean Bristle Technology Signals when to change to maximize your clean. Green bristles turn yellow when it's time to replace brush head. ADA. American Dental Association.