The Oral-B Pro-Health Deep Reach toothbrush is designed to deliver superior plaque removal versus a regular manual toothbrush. The Criss-Cross bristles featured in this Oral-B toothbrush reach deeper and remove more plaque in hard-to-reach areas*. This toothbrush also features power tip bristles to reach difficult-to-access areas behind back teeth. Additionally, the Pro-Health Deep Reach toothbrush includes a contoured grip handle for comfort and control during brushing. Oral-B is the #1 Dentist Recommended Toothbrush Brand Worldwide. A new toothbrush cleans 95% better in hard-to-reach areas**, remember to change your toothbrush every 3 months. *vs. a regular manual toothbrush **vs. one 3 months old; research with a flat trim manual toothbrush