Implants can play a supporting role, when the elderly teeth fall out, in the process of implantation is not missing a plant one, but according to the needs of the elderly and the economic situation to choose different implants and the number of implants, in order to achieve different therapeutic effects. Elderly people with missing teeth can be implanted, but different number of implants and different restorations should be chosen according to the patient’s needs and the results achieved, provided that the patient’s safety is guaranteed, for example, 2, 4, 6 or even 8 implants can be implanted. Different numbers of implants can be selected for overdenture restorations, that is, implants supporting movable teeth. Removable teeth are better stabilized for chewing function than supporting a removable denture with alveolar bone and mucosa. As the number of implants increases to 4 or 6, or even 8, the restoration can become a fixed restoration, which is a more ideal restoration for older patients as it can restore the chewing function of the entire dentition with excellent comfort. After losing all the teeth, in the long run, the choice of implantation has a better effect on the recovery of chewing function and improving the quality of life.