The oral-b pro-health all-in-one manual toothbrush bristles attack plaque from the perfect angle cleaning better than a flat trim brush with straight bristles. Plus, pro-health's tongue cleaner helps remove germs from the tongue. One brushing removes up to 99% of plaque in hard-to-reach areas. Pro-health's tongue cleaner helps remove germs from the tongue. Powertip bristles: extra long bristles to help clean hard to reach places.