Oral-B Pro-Expert Extra Clean is designed to reduce up to 90% plaque in hard-to-reach areas* to give you a clean and healthy smile. Extra long Power Tip bristles hit areas where plaque builds up, and CrissCross bristles flex and straighten to get in-between teeth while still being gentle on your gums. • Reduces up to 90% plaque in hard-to-reach areas* • 16° angled CrissCross bristles flex and straighten to penetrate hard-to-reach plaque in-between teeth • Power Tip Bristles help reach deep and clean hard-to-reach areas while still being gentle enough on your enamel • Oral-B, the #1 toothbrush brand used by dentists worldwide. Dentists recommend replacing your toothbrush every 3-4 months, or when bristles are faded or worn, for a better clean • For clinically proven superior results, use together with Oral-B Pro-Expert All Around Protection toothpaste and Oral-B Pro-Expert mouthwash