Fillings are necessary for children with rotten milk teeth, which can likewise cause pain and in severe cases may cause tooth-induced swelling of the face. Therefore, it is also necessary to carry out timely treatment, filling treatment. The relatively fragile pulp chamber of milk teeth is wide and thin, and caries can quickly affect the pulp chamber, leading to severe tooth decay. There are permanent teeth underneath the milk teeth, and if caries affects the permanent teeth, the growth of the permanent teeth will be affected, and the consequences will be more serious. Therefore, caries in the baby teeth needs to be treated in a timely manner. In addition, dental caries can cause toothache, so that children use the side without tooth decay to chew for a long time, which will cause the size of the bite muscles on both sides to be different, affecting the development of the child’s face. Therefore, it is necessary to fill the teeth of children who have caries in their milk teeth. Normally, you should pay attention to your diet and eat less over-sweet food. You can eat more food with more fiber so as to reduce the occurrence of fish disease, and to rinse and brush the teeth after meals, which can also effectively prevent the emergence of tooth decay. Drinks are also very harmful to teeth and should be consumed sparingly. Seek medical attention for dental problems.