1, sonic vibration toothbrush and rotary toothbrush with brush head are slightly different in use, but the brush head and teeth of the toothbrush are placed at a 45 angle.
2. The brush head of rotary toothbrush with brush head can rotate automatically, so as long as the bristles are placed on the outside, inside and above the teeth, it will rotate the brush head to clean the teeth. Usually it takes about 5- 10 seconds to brush one tooth, and then move the toothbrush to the next tooth.
3. The toothbrush head with acoustic vibration will not move by itself. When in use, put the toothbrush on the teeth to be cleaned, and then gently vibrate left and right. Be careful not to move too much. Usually brush 2-3 teeth at a time for 5- 10 seconds, and then brush the next unit of teeth.
Selection of electric toothbrush
At present, there are two kinds of electric toothbrushes, one is acoustic vibration type and the other is rotating brush head. The electric toothbrush with rotating brush head will be cleaner, but in fact, there is little difference between the two. From the point of view of tooth wear, the acoustic vibration electric toothbrush will have less wear on teeth and will be more gentle. Both of them have their advantages and disadvantages. You can choose a suitable electric toothbrush according to your feelings.
The brush head of electric toothbrush is recommended to be replaced once every 3 months. The brush head can have higher quality and be more comfortable to use. Brush should also be selected according to your own preferences. Some people like soft bristles, while others like hard bristles, each with his own preferences.