Wormy teeth are mostly called caries clinically. Painful caries may be caused by hot, cold, sour or sweet irritating foods entering the cavity, and the treatment is mainly filling after cushioning or direct filling. Caries may also develop into pulpitis and periapical periodontitis, which are treated with root canal therapy. 1. When irritating food enters into the carious cavity: at this time, the main treatment is to directly apply dental high-speed turbine drill to remove the carious part, and then fill the cavity after cushioning or directly fill the carious cavity. 2. At the stage of pulpitis and apical inflammation: spontaneous pain, night pain, biting pain, etc. may occur, and the treatment is mainly root canal therapy. If the insect toothache is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.