Teeth have the function of chewing food, assisting in pronunciation and maintaining the shape of the face. Missing teeth are prone to chewing difficulties, food impaction, elongation of the opposing teeth, and tilting of the adjacent teeth. Loss of front teeth can also lead to inaccurate pronunciation and changes in facial morphology, and the loss of all teeth makes chewing very difficult and facial appearance significantly older. Therefore, regardless of the number of teeth lost, timely prosthetic restoration should be performed. Restoration is usually done 2 to 3 months after tooth extraction. Before restoration, the remaining teeth should be treated for diseases and the alveolar bone and soft tissues should be trimmed if necessary to ensure the quality of the restoration. At present, the main restorations for missing teeth are movable restorations and fixed restorations (including fixed bridges and implant dentures). The specific choice of restoration method should be based on the patient’s oral conditions and subjective requirements.