After wearing dentures for more than 20 years, now the dentures can not bite food, always loose, replaced a pair (dentures) also does not work! Do you or your elderly family members have a similar situation? Is there a solution to these problems? Perhaps, dental implants can be the most effective solution to the plight of elderly people who have lost all their teeth. Can full mouth toothlessness be restored by dental implants? At what age can dental implants be placed? Missing teeth often make a person’s facial appearance appear older than his or her actual age. Conventional solutions include the use of a denture base that fits over the gums or a tight seal along the edge of the denture to hold it in place. The success of traditional solutions depends largely on the amount of remaining bone and soft tissue. Loosening of the full denture also weakens mastication, leading to unbalanced meals and digestive problems, for example, the inability to consume hard, crunchy vegetables and fruits. Bone resorption may also worsen and the functionality of the denture will gradually decrease. If the denture is covered in the upper jaw, it can also affect the sense of taste. In contrast, implant-supported restorations are functionally and cosmetically similar to natural teeth. Patients have testified that the greatest advantage of implant-supported dental restorations is that they help patients to eat, speak and laugh again without restriction. Strong, fixed replacement teeth allow patients to feel and look better and enjoy a higher quality of life. Dental implant patients undergo a minor surgery similar to a tooth extraction, and in principle there is no upper limit to the age of patients who can receive dental implants as long as their general and local conditions are compatible. The method of restoring a full mouth without dental implants is designed according to the patient’s health condition and economic conditions, for example, 2-4 implants can be placed to make a semi-fixed full denture, or 4-8 implants can be placed to make a fully fixed full denture. The systemic condition mainly refers to the absence of contraindications to surgery, and must exclude serious hypertension, cardiac arrhythmia, myocardial infarction, diabetes mellitus that cannot be controlled stably, and coagulation mechanism disorders; the local condition mainly refers to the relationship between the alveolar bone, gums and adjacent important anatomical structures, which means that there must be the necessary space to plant the roots. Of course, cases with poor alveolar bone conditions can also be solved by guided bone regeneration techniques and bone grafting techniques to obtain the best long-term function. The doctor solemnly advises that all patients’ conditions should be determined by examination in a specialized hospital and diagnosis by a physician.