If the incisor is broken in half without reaching the pulp cavity, resin restoration or crown restoration will be used after using desensitizing medication according to the situation. If the incisor reaches the pulp cavity, it needs to be restored after root canal treatment and core crown restoration. 1. Not reaching the pulp cavity. If the fractured incisor only reaches the dentin and has not caused the pulpal cavity to be exposed, the tooth may be sensitive to external hot and cold stimuli, and needs to be desensitized with desensitizing drugs such as strontium chloride, silver fluoride, etc., and then resin restoration or crown restoration will be used to restore the shape of the tooth. 2. Reaching the pulp cavity. Incisor fracture if caused by the pulp cavity exposure, the later will cause pulp infection, generally need to carry out root canal treatment, remove the pulp after the root filling, and then pile core crown repair. It is recommended to go to the hospital in time to deal with the broken half of the incisor, to avoid triggering pulpitis, apical periodontitis.