Human teeth are lost for various reasons and must be restored in time to ensure normal bite function and a beautiful face. There are many methods of dental restoration, and dental implant technology is the most advanced internationally, which has good biocompatibility, good functional recovery, does not damage adjacent teeth, and realizes many problems of lost teeth and poor chewing that cannot be solved by traditional restorative techniques. Dental implant technology is widely used in dentistry clinics. Both patients and doctors should be clear before deciding to have dental implant restoration. Many patients have lost one or several teeth for various reasons, but the height and fullness of the periodontal support tissue (commonly known as the dental bed) is well preserved, and the surrounding teeth are solid and healthy. One is to grind the natural teeth on the side, and the other is that the natural teeth on both sides are subjected to the occlusal force, and the bone in the lost tooth area is not physiologically stimulated by the occlusal force, which will lead to long-term disuse resorption. Dental implants will avoid the above problems, and at the same time, the better periodontal support tissue morphology and dental implants complement each other, and the aesthetic effect of the restoration is better, so it is suitable for implant restoration. 2, most or even all teeth are missing, periodontal support tissues are obviously resorbed, there is no condition to do traditional fixed denture, the chewing efficiency of movable denture is poor, using implant restoration can not only get closer to the chewing ability of natural teeth, but also stimulate to slow down the disuse resorption of alveolar bone, still suitable for dental implant. Not all lost teeth can be restored with dental implants. In principle, when choosing between multiple restorative methods, the technique with more relative advantages is selected. It is the systemic factors and the local periodontal supporting tissues and surrounding teeth that are the main factors for being able to do implants. In other words, dental implants can be done by and large, except for those who are physically unable to undergo implant surgery and those who have severe local bone deficiencies and poor bone quality that do not improve through treatment. Second, what is the purpose of implant technology? Implantation is not for the sake of implantation, but to rebuild your dental system. At the age of 18, the permanent jaw is rebuilt, and the teeth are healthy, beautiful and strong for biting. Subsequently, the jaw system is destroyed by various diseases, trauma, and bad habits. The destroyed jaw system cannot be rebuilt and reconstructed by itself until finally all teeth are missing, some bone is missing, and dental disease eventually manifests itself as destruction of the jaw system. Dental implants are more suitable than traditional restorative techniques to solve the problem of bone loss. Therefore, the purpose of implants is to reconstruct the destroyed alveolar bone, jawbone and teeth as much as possible, and to rebuild the morphology and function of the masticatory organ: if there is no bone, do the bone; if there is bone, do the teeth well, do the arch well, do the bite relationship well, and do the dental and jaw system well. A dental and jaw system containing a prosthesis (dental implant) or composed entirely of prosthesis should reproduce or approximate in form and function the natural dental and jaw system of the patient when he or she was young. Therefore, there are two key aspects of dental implant treatment: firstly, to treat the existing oral disease so that the remaining natural teeth and the oral cavity are disease-free; secondly, to systematically design the implant and restorative approach, and to build a dental system with dental implants and the remaining natural teeth (or all by prosthesis) that is suitable for your organism, so that this dental system with prosthesis (dental implants) can function in a healthy way.