Young children also need to have fillings if they have caries, because caries is not curable, but can only develop deeply. And the affected children usually finish replacing the teeth between 6-12 years old, at that time the teeth in the mouth have chewing function and can promote eating, and it is an important source of supplying nutrition to the body, it is suggested that the affected children must have the filling in time when they have caries to avoid affecting chewing. If the caries is not treated in time, it will develop into pulpitis, which will cause pain and affect the mental state of the child, and also affect the life of the child. And if the incisors have caries, the child may have psychological problems, and if there is no good chewing relationship, there may be no good chewing effect, which will affect the development of the jaw bone of the child. Therefore, the impact is very far-reaching, and it is recommended that if the caries appears, it must be filled in time.