In case of incisor decay, if it is a small area of decay, you can remove the decay directly and then repair the shape of the tooth; if it is a large area of defect, you can make a dental veneer or inlay bonded to the defective part of the tooth. In addition, if the tooth has already leaked the nerve, you should do the root canal treatment, after the root canal treatment, you can do the crown restoration of the incisor, you can do a full porcelain crown, so it is more beautiful, and the permeability is higher, generally it can be more similar to the neighboring teeth. If you do a metal porcelain crown, it will look a bit more boring. If there is cavity in the incisors, you should check the adjacent surface of the teeth and observe whether there is caries in the adjacent teeth, if you find the caries, you should repair it in time to avoid the deep development of the caries and the cavity becomes bigger.