1. The working principle of electric toothbrush is that the motor drives the circular brush head to rotate, which strengthens the friction effect while performing the ordinary brushing action. The rotary toothbrush is noisy, the tooth surface cleaning is very clean, and the interdental cleaning is relatively weak, but it is not recommended to use for a long time. Vibrating toothbrushes are more complex and more expensive.
2. Ultrasonic toothbrush uses the cavitation effect of ultrasonic energy in the periodontal to remove periodontal bacteria and unclean materials, and its cleaning range can cover all parts of the periodontal. Ultrasonic energy is transmitted to the tooth and gingival surface through the bristles of the brush head. On the one hand, it loosens the adhesion between plaque, tartar and small calculus and teeth, and destroys the parasitic reproduction of bacteria in the gingival pocket and the hidden parts of the tooth surface.
3. At the same time, the ultrasonic energy transmitted to the gum surface by touching the gum bristles further penetrates into the gum interior and acts on the cell membrane to accelerate blood circulation and promote metabolism.
Electric toothbrushes contain a small electric motor that vibrates the brush head back and forth. The small motor is connected to a battery that can be recharged over and over again. When you brush your teeth, the potential energy stored in the battery is converted into rotational kinetic energy, a process that actually reflects a technique we use a lot in everyday life. The coils in a motor sit between the S and N poles of a small magnet. An electric current passes through them, creating a magnetic field that repels one pole of the magnet and attracts the other, causing the coils to become twisted.
Electric toothbrushes contain a small electric motor that vibrates the brush head back and forth. The small motor is connected to a battery that can be recharged over and over again. When you brush your teeth, the potential energy stored in the battery is converted into rotational kinetic energy, a process that actually reflects a technique we use a lot in everyday life. The coils in a motor sit between the S and N poles of a small magnet. An electric current passes through them, creating a magnetic field that repels one pole of the magnet and attracts the other, causing the coils to become twisted.
