It is recommended to brush your teeth once a day, once in the morning and once in the evening, or once more after lunch, but the main thing is that you should brush more thoroughly, rather than emphasizing the number of times you brush your teeth, choose a soft-bristled small-headed toothbrush when you brush your teeth, don’t brush too hard, and brush gently on the surface of your teeth to avoid damaging your gums. If you brush your teeth hard or with hard bristles, it may shrink the gums and produce gum recession, and the teeth will expose the roots or the neck of the teeth will have symptoms of sensitivity. In addition, when brushing teeth, it is recommended to choose the correct brushing method, the regular adult use is the Bachmann brushing method, you can also use the vertical rotation method; children can choose the circular method, usually to ensure that each tooth of each tooth surface brush to.