Dental implant is not really a natural tooth, but a titanium metal with high compatibility with human bone, which is designed and manufactured into a cylinder or other shape similar to a tooth root, and is surgically implanted into the alveolar bone in the missing tooth area, and after 1 to 3 months, when the artificial tooth root fits into the alveolar bone, a porcelain or all-porcelain crown is made on the artificial tooth root. Due to its non-destructive nature, dental implants have been recognized by the dentistry community as the preferred restoration method for missing teeth. Dental implants are known as the third set of teeth for human beings because they are deeply implanted in the alveolar bone and can withstand normal chewing forces, and are almost identical to natural teeth in function and aesthetics. Dental implants are divided into 3 basic structures: 1. Implant pile: the part of the implant pile exposed in the oral cavity, used to make artificial crowns or denture retainers. 2. 2. Implant: The part of the implant buried in the alveolar bone, which is the key part of the success of the artificial dental implant, has a certain shape (such as spiral, leaf and column), and has a multifaceted contact surface with the tissue, with a hole or rough surface, so as to produce a good contact relationship with the bone. 3. Implant neck: The implant neck is located in the part between the implant and the implant. According to different types of implants, the shape and structure of the neck are different, but this part is the main part of the post-implantation complications that arise, directly affecting the integrity of the epithelial cuff, and is relevant to the prevention of local infection after implantation. Outstanding advantages of dental implants 1, strong function: can well restore the function of teeth, chewing function is greatly better than other traditional dentures. 2. No grinding of teeth: it relies on its own artificial roots for restoration without grinding the healthy teeth next to it, which does not cause any harm to the teeth. 3, good retention: without the use of traditional dental rings or braces, artificial teeth root alveolar bone closely combined, like real teeth rooted in the mouth, with strong retention and stability. 4.Aesthetics: The crown can be made according to the face shape and the shape and color of other teeth of the patient to achieve the best effect of overall coordination and aesthetics. 5. Comfortable and convenient: No abutments and rings necessary for removable dentures, no foreign body sensation, very comfortable and convenient, and good for keeping the oral hygiene. 6. Simple operation: Dental implant surgery is a small alveolar surgery, similar to tooth extraction, using local anesthesia, with little trauma, you can eat after surgery, almost painless. The implant placement procedure can be completed in a few minutes to a few hours. Dental implants do not have any adverse side effects on the human body due to the use of biomaterials that are highly compatible with the human body. If the osseointegration of the dental implant fails, i.e. the implant is not successful, it can be removed and the implant can be placed again after the bone has healed, or another restoration method can be used.