1, every morning when you wake up and before you go to bed, insist on knocking between your upper and lower teeth, a dozen times at first, and then increase the number of knocks and strength day by day to about 50 times each. 2. Rinse your mouth well with warm water in the morning and brush your teeth carefully and effectively for 3-5 minutes, with emphasis on effective brushing. 3, do 1 to 2 times a day to close the mouth and cheek gargling action, while the tongue turn left and right. This method can make the oral saliva secretion increase, so that the tongue, tooth surface, teeth and oral mucosa by a certain rinse, so as to increase the self-cleaning effect of the mouth, improve the resistance of teeth to disease. 4, eat less sweets, eat more rough and fiber-rich food, and chew slowly, coarse fiber food has the effect of teeth cleaning and teeth massage, can prevent premature gum recession. 5, after eating any food as far as possible, rinse your mouth well with water. 6, do not smoke, do not drink strong tea, often drink plain water, help to maintain the normal color of teeth. 7.Be sure to brush your teeth before going to bed at night, and never eat food before bedtime after brushing, otherwise you lose any meaning ah. 8, regular visits to the dentist, become friends with the dentist, regular scaling when necessary to prevent the formation of tartar and calculus, to prevent and control oral diseases.