Oral radiographs need to be taken for the middle incisors to determine the depth of decay and then repair the decay. If shallow caries occurs on the adjacent surfaces of both sides of the central incisors, a high-speed fissure drill can be used to grind away the decayed tooth tissue on the lingual side, preserve the structure on the labial side, and use composite resin for restoration and filling. If the cavity is close to the pulp, it should be filled after removing the decayed material and using calcium hydroxide bedding, paying attention to restoring the contact relationship of the adjacent surface to avoid forming the overhang and stimulating the inflammation of the gingival papillae. When the cavity is deeper, resulting in pulp exposure and infection, the pulp should be removed under local anesthesia and root canal treatment should be completed. To prevent the crown from fracturing, porcelain or all-ceramic crowns can be made to restore both incisors, and try not to make a continuous crown, which will affect the tooth movement.