The toothbrush AD2157 successfully removes food remains and plaque from your teeth. An optimized 22,000 brush strokes per minute is gained thanks to modern technology. During this unique way of cleaning special microbubbles are created which clean deep between teeth, removing harmful bacteria. The result are healthy teeth without plaque and caries. Thanks to changeable brushes, which are included in scope of delivery, you can decide by yourself, how long you want to use each of the brush heads you can change your old brush at any moment and continue enjoying high quantity and comfort of brushing teeth.