Electric toothbrushes include rotary toothbrushes, sonic toothbrushes, and ultrasonic toothbrushes. While rotary toothbrushes usually have round brushes that rotate alternately from left to right, sonic toothbrushes are equipped with elongated, vibrating heads. With 20,000 to 40,000 vibrations per minute, they achieve significantly higher mechanical movements than rotary brushes. Ultrasonic toothbrushes exceed this performance many times over and are a completely different technology. While rotary and sonic toothbrushes remove biofilm with the help of mechanical movements, the emmi-dent works with up to 96 million ultrasonic vibrations per minute and requires no mechanical movements for tooth cleaning. Motionless tooth cleaning thanks to the latest patented ultrasonic technology.
The crucial difference lies in the type of tooth cleaning: Like manual toothbrushes, rotary and sonic toothbrushes also clean the teeth mechanically. This type of tooth cleaning carries a risk of injury to the gums and tooth enamel if the toothbrush is used improperly. Furthermore, ultrasound can minimize gum inflammation. This is confirmed by our study (gingivitis) .
Unlike conventional electric toothbrushes, the ultrasonic toothbrush works completely without pressure by transmitting vibrations. This ensures a comprehensive cleaning of the entire oral cavity.