The Oral-B Dual Clean toothbrush has dual circle zones that remove plaque. In addition, the hi-lo bristles on this toothbrush remove plaque and food from teeth to reduce tooth decay. The Oral-B Dual Clean toothbrush also has power tip bristles that help clean hard-to-reach areas. Furthermore, the tongue cleaner removes odor-causing bacteria, and the easy-to-use comfort grip handle provides comfort and control of your toothbrush. For the best results, change your toothbrush regularly. A new toothbrush cleans 95% better in hard-to-reach areas*. Oral-B is the #1 Toothbrush Brand Used by Dentists Worldwide. *vs. one 3 months old; research with a flat trim toothbrush