Tough on plaque, gentle on gums. Gentle clean. The brand more dentists use themselves worldwide. Why it Pro-Health CrossAction Gentle Clean right for you? Its extra soft bristles provide outstanding plaque removal that helps protect gums and enamel. How Does Pro-Health CrossAction Gentle Clean Work? It combines: extra soft CrissCross bristles (Extra Soft Crisscross bristles are angled in opposing directions to lift out and sweep away plaque); extra soft Power Tip bristles (Extra long bristles help clean hard to reach places). Dentists recommend changing your brush every 3 months. A new toothbrush can remove up to 30% more plaque than one 3 months old (Research with a flat trim manual toothbrush).