1. Brush your teeth in the morning and evening, and develop a good habit of gargle after meals;
2. Eat less acidic foods and avoid snacks before going to bed;
3. Eat less foods high in sugar, such as sugar, chocolate, biscuits, etc.;
4. Don't eat too much hard food to avoid tooth wear;
5. Participate in physical exercises and check the oral cavity regularly. Generally, people over 12 years old should check once a year;
6. The usual diet should eat more nutritious foods rich in calcium, inorganic salts, etc., and eat high-fiber coarse foods as much as possible.