Children’s dental trauma can be divided into three main categories in terms of the damaged area: 1. If a tooth is broken, sometimes you can see that the tooth is missing a small corner or even a large piece; 2. Sometimes you can find that the tooth is displaced, sometimes to the outside or to the inside, or directly longer than the tooth next to it, or even the tooth just falls out and falls to the ground, this kind of damage belongs to the detachment; 3. Accompanying bone damage, especially when you find that The tooth becomes shorter, compared with the surrounding teeth, the tooth is shorter and the tooth is embedded. When you hit a nail, you hit a nail into the wall, and the wall actually suffers a little bit of damage, so the bone also suffers some damage, accompanied by alveolar bone damage.