Dental implant refers to such a way of tooth restoration, which takes the lower structure implanted in the bone tissue as the basis to support and stabilize the upper dental prosthesis. It covers the lower supporting dental implant (dental implant) and the upper dental prosthesis (dental prosthesis, implant-supported) these two major parts. It uses artificial materials such as metals and ceramics to make implants (usually in the shape similar to a tooth root), which are implanted into the tissue (generally in the upper and lower jaws) through surgical methods, and then obtains stable and firm fixation support of the bone tissue, and then connects with the upper dental prosthesis through special devices and methods. Dental implants can achieve restoration results that are extremely similar to natural teeth in terms of function, structure and aesthetic effect, and have already become the preferred restoration method for more and more patients with missing teeth.