The clinical success criteria for implants have been studied for a long time by domestic and foreign scholars, but so far this issue is still in the debate stage and is constantly being refined. Two common criteria are listed below for your reference. I. Albrektsson and Zarb criteria (gold standard) Albrektsson and Zarb proposed the criteria for the success of dental implants in 1986, which are widely recognized and used as the “gold standard” for the success of dental implants. 1. No clinical movement of the implant during its function; 2. No X-ray transmission area around the implant; 3. Vertical bone resorption should be less than 0.2 mm per year after 1 year of implant restoration; 4. Healthy peri-implant mucosal tissue; 5. Implant success rate: 85% in the maxilla and 90% in the mandible at the end of 5 years, 80% in the maxilla and 85% in the mandible at the end of 10 years; 6. 6. No sustained and/or irreversible damage to the mandibular canal, maxillary sinus, nasal floor tissue, infection and symptoms of pain, numbness, abnormal sensation, etc. In 1995, at the first national seminar on dental implants held in Zhuhai, experts proposed the following criteria for the evaluation of dental implant success through thorough discussions with reference to advanced foreign experience and the actual situation in China: 1. 2. Radiological examination, no translucent area in the bone interface around the implant. 3. Bone resorption in the vertical direction does not exceed 1/3 of the length of the implanted part in the bone at the completion of the implant surgery (radiographic examination by standard projection method). The horizontal bone resorption does not exceed 1/3, and the implant does not loosen. 4. No persistent and/or irreversible damage to the mandibular canal, maxillary sinus, nasal floor tissue, infection and symptoms of pain, numbness and abnormal sensation after implantation. Failure to meet any of the above criteria cannot be considered successful. According to the above criteria, a five-year success rate of 85% or more and a ten-year success rate of 80% or more should be achieved. An implant system or a unit implementing implant prosthodontic treatment must meet the above criteria in order to be considered qualified to carry out this operation.