Adult tooth decay has rotted empty, need to go to the hospital to check, decide whether there is still the need for fillings, fillings need to be cleaned on the teeth of the black material, and then fillings; if there is no need for fillings, you need to extract the tooth. 1. Adults with decayed teeth rotting empty, if there is still a need to fill the tooth, you should go to the regular hospital to clean the tooth, and then fill the tooth with filling material, and if the defect is serious, you need to wear a crown after root canal treatment for protection. 2. If the decayed tooth is large in size and there is no need for filling, the tooth needs to be extracted for 3 months after the alveolar bone and gums return to normal, and then implant restoration will be carried out. Adults should go to the hospital as soon as possible for examination and treatment of tooth decay, the longer the decay will become more and more serious, which is not conducive to the recovery of the disease.