Dental implants have the following advantages over other restorative prostheses: I. Less painful: The dental implant surgery can be completed in a few minutes to a few hours for a skilled implantologist, without hospitalization, and the procedure is completely painless and can be eaten after the surgery. Second, easy to clean: Because dental implants imitate natural tooth restoration, it is very easy to clean dental implants, fixed implant restoration cleaning without removing the denture. There is a natural gap between the implant and the adjacent teeth, which can be cleaned directly with dental floss. Natural feeling: After the implant restoration, the tooth is like a newborn, chewing and feeling close to the natural tooth, and will not produce any side effects to the human body. 4. No harm to neighboring teeth: Porcelain tooth restoration often requires the removal of certain healthy neighboring teeth, but dental implants generally do not need, it does not affect the healthy neighboring teeth, its own roots exist independently. If the relationship between the teeth is normal, it will not cause any new caries to the healthy teeth due to food embedding on the contact surface of the dentures and the healthy teeth. Five, stable and reliable: fixed dental implants are well fixed after implantation, more stable and reliable than traditional dentures. At present, the failure rate of dental implants is lower than the rate of tooth loss of human’s own teeth, and the chewing efficiency is substantially improved compared with traditional dentures. Sixth, comfortable and beautiful: dental implants do not have the hook or sleeve in the traditional veneer method, especially in the anterior teeth restoration.