Don't bite hard things with your teeth, such as small walnuts, torrets, sticks, pine nuts, and other hard shells.
Do the rapping (i.e. the upper and lower teeth to tap each other) several times a day for about forty or fifty.
Every year, I go to the hospital to check my teeth once, which can help me to prevent disease and disease. If you find your teeth sick, you should go to the hospital at any time without delay.