After the dental implant has reached the end of its service life, it is recommended that the patient go to the hospital to review the implant and the abutment crown for any problems, and observe or replace them according to the situation. 1. Observation. Dental implants need to be reviewed regularly, generally after the service life is reached, it is recommended to go to the hospital for examination, if there is no problem with the periodontium and teeth after examination and there is no abnormality in themselves, they can continue to be used, but they still need to be reviewed regularly to prevent the abutment screws from loosening. 2. Replacement. After the dental implant reaches the service life, if it is found that there are shadows around the implant or the abutment screw has loosened, it is necessary to remove the crown and replace the restoration abutment and screw, and if the lower implant is loosened, it is necessary to extract the implant and then re-implant the restoration at a later date. After the dental implant reaches the service life, it is recommended to go to the hospital for follow-up, in order to find out the problem and deal with it in time.