In the 1960s, Professor Branemark established the theory of osseointegration, which laid the biological foundation of modern dental implantology. Under the guidance of this theory, and after nearly 40 years of continuous exploration and practice, oral implantology has matured and become a dynamic and rapidly developing sub-discipline in the field of dentistry. It is no longer a supplementary means of conventional restoration, nor is it a service provided only for high consumption groups. In Western developed countries, more than half of the patients with missing teeth have opted for implant restoration. More than 1.3 million implants are used worldwide every year. With the development of this discipline, a series of advanced surgical and restorative techniques have been matured and widely used, and the 5-year success rate of implant restorations has been increasing, and their functional and aesthetic results are comparable to those of natural tooth rows. Oral implants are gradually becoming mature. Dental implantation refers to the anchoring of inorganic allograft materials in the jawbone to provide support and fixation for the restoration of missing teeth. Dental implants therefore include a series of processes such as surgical placement of the implant, fabrication and wearing of the denture and maintenance of the implant restoration after completion. Compared with traditional removable denture and fixed denture restoration methods, oral implant technology has outstanding advantages, specifically: 1, no need to grind the surrounding natural teeth, no risk of secondary caries in the long term of adjacent teeth; 2, with independent artificial tooth roots, the denture is reasonably stressed and does not increase the burden of abutment teeth; 3, no damage to adjacent teeth; 4, can maintain the fullness of the alveolar process for a long time, and prevent the disuse of the alveolar process caused by tooth loss 5. High long-term success rate; 6. Therefore, the implant denture is known as the “third set of human teeth”. The picture shows the effect of a missing upper left maxillary tooth after implant restoration.