The tooth surface defect without exposing the nerve can be selected according to the situation, such as direct filling, filling after cushioning, inlay or crown restoration and other treatment methods. 1. Direct filling: When the defect reaches the shallow enamel or dentin layer, the decayed tooth tissue will be removed cleanly, and the appropriate filling material will be chosen according to the location of the defect for direct filling. 2. Cushion filling: the tooth surface defect reaches the deep layer of dentin, firstly, remove the decayed tooth tissue cleanly, and then carry out the cushion filling. 3. Inlay or crown restoration: If the dentinal defect is large, inlay restoration or full crown restoration can be considered to protect the remaining dentinal tissues. It is best to go to the hospital in time, after professional doctor’s examination, to determine the situation of tooth surface defects, and then choose the best treatment method.