Teeth lost, generally can also do dentures, currently can choose to do full mouth activity denture, dental implants. 1. Full mouth movable denture: this method is mainly used to improve the oral teeth loss, more suitable for the elderly. It mainly utilizes natural materials for fixation, which can restore oral aesthetics and help normal chewing. And full mouth movable denture is also more convenient, can be removed at any time. 2. Dental implants: mainly implanted into the alveolar bone, can be local implantation, can also be full mouth implantation, more suitable for the elderly tooth loss. Moreover, this method usually takes titanium alloy implant, which can maintain longer time and is more wear-resistant. Elderly people who have lost all their teeth need to consult a doctor in time and choose the best restoration method according to the guidance of a professional physician.