A hole in a tooth can be filled with a filling material, root canal treatment, inlay restoration, or extraction of the affected tooth, it is recommended to consult a doctor. 1. The decayed part of the tooth can be removed and repaired with a filling material. 2. If the cavity is large and has affected the pulp or root tip, the decayed part can be removed and root canal treatment can be carried out before repairing. 3. If the area of tooth decay is large or after treatment, an inlay can be made to repair it. 4. If the tooth has a hole, if it is worn at the bottom of the pulp chamber or the wisdom tooth is decayed, the affected tooth can be directly extracted. It is recommended that the teeth have holes in time to seek medical treatment.