1. Tooth irregularity is a problem of congenital development, or it is a problem of childhood development. Just like a small sapling, the reason why he grew into a towering tree is not so valuable or the branches and leaves are not so neat is because he didn't pay attention to pruning our teeth when he was young. Actually, it's the same. When our teeth are young, they are relatively fragile. If we chew something particularly hard, or are hit by an external force, it may cause tooth deformation. After growing up, even if the teeth reach the normal state of adults, they will still not.
2. The teeth are too white. Although bright white teeth can make the whole person's temperament look brighter and give people a feeling of sunshine, our teeth should not be kept particularly white in every part. Our teeth are fixed, and they are deposited in several places where there are main colloidal foods. Its color can't be so white. If you want to keep your teeth white all the time, you need to wash your teeth or use ultrasound and cold light to keep your teeth bright and white, but many times.
3. Dentin allergy. This is what many people will encounter when they are young. The situation of teeth is that if they eat a little cold, then they will have a concentrated pain. That feeling is like a weak current flowing all over the body, which makes people feel uncomfortable. This is a symptom of dentin hypersensitivity. In fact, dentin hypersensitivity is very easy to treat. We usually take care not to eat hot or cold, and then use some medicated toothpaste. Sticking to brushing your teeth for 3~2 years basically means that sensitive symptoms will gradually disappear.