If children do not pay attention to oral hygiene in their daily lives it can easily lead to the development of tooth decay, which is not conducive to chewing food and frequent toothaches and other problems. When children have worm teeth, it is recommended to take treatment measures such as filling, root canal and extraction according to the degree of worm teeth. 1.Mild worm teeth: Usually there is no painful symptom at the beginning of worm teeth. It is recommended to go to regular hospital to choose appropriate material to fill the cavity. Before filling the cavity, the destroyed tissue around the cavity should be removed and then filled, which can restore the integrity of the bowl of the tooth and also prevent the worm tooth from developing continuously. 2.Moderate worm teeth: Children will feel tooth pain, especially when eating and consuming sensitive foods such as acid and sweet. It is usually recommended to use root canal treatment, which will firstly remove the necrotic tissue in the root canal, then disinfect and fill the root canal, and finally seal the cavity, so as to effectively treat the moderate worm teeth. 3.Severe worm teeth: children will feel severe pain in this period, and the pain is unbearable, and the cavity is very obvious, usually this situation is due to the pulp being infected by bacteria and necrosis, and it is recommended to extract the worm teeth. After the baby teeth are extracted, there is a possibility of growing healthy permanent teeth. It is important to brush the teeth to prevent worm teeth. If a child has worm teeth, it is recommended to take appropriate treatment in a timely manner to prevent the deterioration of mild worm teeth and the formation of severe worm teeth.