I. Dental implants have a similar dental and periodontal relationship as natural teeth. The gingival-piercing portion of the implant forms an epithelial cuff with the gingival epithelium, which prevents various infections in the oral cavity from entering the implant-osteointegration interface, thus maintaining the long-term stability of the dental implant. The biologically damaging effects of bacteria, viruses, etc. on this cuff and the mechanically damaging effects on this cuff when the dental implant is subjected to forces have a direct impact on the longevity of the dental implant. In this way, it is necessary to perform a special implant cleaning around the dental implant and a routine cleaning of the surrounding natural teeth. Secondly, dental implants need to be coordinated with natural teeth in order to maintain the normal function of the oral and jaw system. To do a good maintenance of dental implants, on the one hand, the wear rate of dental implants is different from that of natural teeth, which will destroy the establishment of physiological wear (dentition) and thus cause (dentition) trauma; on the other hand, natural teeth always have a movement in the direction of forward and toward the occlusal surface, while dental implants lack the driving force of these two directional movements. Therefore, it is necessary to periodically adjust the dental implants to adapt to the changing (dental) relationship. Third, dental implants are composed of several parts like natural teeth, but the parts of natural teeth are organically joined together, while dental implants are connected by screws or adhesive. The mechanical connection is limited by the fatigue life and mechanical properties, which can easily loosen the connection parts of the dental implant; the adhesive connection can loosen the restoration due to the loosening or aging of the adhesive. Therefore, it is necessary to periodically check the components of the dental implant for problems so that they can be repaired in time. A good maintenance of dental implants can prolong their life!