The advantages of implant overdenture mainly include the following: 1, retention: when doing overdenture, the main purpose is to wear firmly, through the attachment, connect the implant with the denture; 2, maintain oral hygiene: if the denture is not taken down, there may be food residue between the denture and the mouth, choose the overdenture helps to clean the implant around the food residue in the mouth is relatively clean, for maintaining This is a good advantage for maintaining oral hygiene. 3. Dispersing the bite force: when the bite force of eating is applied, the implant and the mucosa are mixed to bear all the bite force of eating, the mucosa is less burdened and the probability of pain is less. Some people have too much bone loss, the fixed denture is not aesthetically pleasing, the lips are not full enough, if you do the movable denture, there is a plastic base, you can set the lips more full, aesthetically better.