Brushing time is recommended to be best maintained at 2-3 minutes or more to ensure a good cleaning effect on the mouth. Regular and proper daily brushing not only cleans the teeth and eliminates bad breath, but also has a positive impact on the prevention of oral system diseases. The correct way to brush your teeth is as follows. First of all, the toothbrush should be placed at an angle of 45 degrees to the gums, then use the brush head to sweep or roll back and forth on the surface of the teeth, and try to cover the outer, inner and chewing surfaces of each tooth during the activity, and it is advisable to maintain the process for 2 minutes or more, which can better achieve the purpose of removing plaque, oral residues, etc. Then there is the process of brushing teeth, to control the appropriate strength. This is because brushing with too much force may cause damage to the teeth, gums and oral mucosa tissues. In daily life, when the toothbrush head is significantly worn or used for more than 3 months (whichever comes first), the toothbrush should be replaced to avoid affecting the teeth cleaning effect.