Children with toothache and holes can be improved by cavity filling or root canal treatment depending on their condition. 1. Cavity filling: If the toothache is accompanied by a hole, if the infection has not connected to the nerve, you need to remove the food debris and decayed, necrotic tissue inside the decayed tooth, and then go to the hospital in time for caries filling treatment. 2. Root canal treatment: when the tooth tissue is damaged, it will lead to the phenomenon of cavities, and the cavities will get bigger and bigger, and has caused pulpitis, which will cause strong pain symptoms. Root canal treatment should be carried out in time to treat pulp necrosis and root infection, so as to alleviate the symptoms. Be sure to pay attention to oral hygiene in your daily life and seek medical attention as soon as possible to avoid more serious tooth extraction.