Restoring the aesthetics and function of missing teeth with dental implants relies heavily on the implants that are placed in the bone to support the upper crown. This is why the choice of implant is important. Nowadays, implants are made of titanium metal, which has good osseointegration with the bone. Patients choose the right implant (implant system) for them, mainly based on the recommendation of the doctor who sees them. Each implant system contains implants of different shapes and structures, and the doctor will provide the patient with an adapted implant according to the location of the missing teeth and the condition of the bone. Nowadays, according to the evaluation of international medical institutions and clinicians, the implants are divided into the following brands, ranked from front to back: 1, Nobel (Sweden) implants; 2, ITI (Switzerland) implants; 3, 3I (USA) implants; 4, BEGO (Germany) implants; 5, Odontite (Korea) implants; 6, BLB (China-Dutch) implants; The above are the most common implants used by medical institutions in the north. The above are the most commonly used implants in the northern region.