Denture is divided into mainly includes movable denture, fixed denture, implant denture, no matter what kind of denture, can not be used for life, have their own life and use restrictions, as follows: 1, the general life of the movable denture is 3-5 years, because 3-5 years later the patient’s alveolar bone will appear certain changes, then even if the movable denture is not bad, but may be with the bone between a certain The gap between the movable denture and the bone may cause pressure, pain or looseness, which will need to be replaced; 2, with the advancement of materials and technology, the life of fixed denture can now generally reach about 10 years, fixed denture after 10 years may appear gum recession, gum redness or discomfort of the abutment teeth, which will need to be repaired or replaced; 3, the life of implant denture than movable denture and fixed The life expectancy of implant dentures is much longer than that of removable dentures and fixed dentures, which can reach decades or even be used for life, but it is not absolute.