With CrossAction bristles. Superior plaque removal (Than a regular manual toothbrush). Trust the brand more dentists use 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. For more oral care information visit: www.OralB.com or call 1-800-56-ORALB.