90% deeper reach (than a regular toothbrush). Removes plaque between teeth. Trust the brand more dentists use themselves worldwide. Why is Pro-Health right for you? It's clinically proven to remove more plaque than a regular manual brush. It removes up to 90% of hard to reach plaque (one time brushing studies). Features: CrossAction Bristles: Unique CrossAction Bristles are angled in opposing directions to lift out and sweep away plaque. PowerTip Bristles: Extra long bristles to help clean hard to reach places. Indicator Bristles: Blue indicator bristles fade halfway so you know when to replace your brush. Pro-Health Satisfaction Guarantee: If you are not satisfied with your results, please call 1-877-769-8794 within 60 days of purchase to receive a pre-paid card for the purchase price. Retain original receipt and product UPC. The dental experts from Oral-B recommend using Crest Pro-Health toothpaste. For more oral care information visit: www.OralB.com or call 1-800-56-OralB (1-800-566-7252). Made in Iowa City with US and imported parts.