Dental implants are a brand new technique of dental implants after the traditional removable removable and fixed dental implants. Fifth, it is small, metal-free, aesthetically pleasing, and conducive to oral hygiene. Sixth, dental implant surgery is a small alveolar surgery, similar to tooth extraction, using local anesthesia, with little trauma, and can be eaten after surgery, almost painless. The implant placement is usually done in a few minutes to a few hours. Since the implants are made of biomaterials with excellent compatibility with the human body, they do not cause any adverse side effects to the human body. Even if the osseointegration of the implant fails, the implant can be removed and reimplanted with an improved method or replaced with a common denture. Because of these advantages, dental implants are also known as the “third set of human teeth”. After more than 40 years of development, dental implants have become a new technology that is mature, reliable and has a high success rate, and is widely accepted in the western developed countries.