When teeth are lost, the patient cannot chew and the pronunciation is affected, so restoration is necessary. There are two popular restoration methods, one is the movable denture and the other is the fixed implant denture. The movable denture is the usual removable denture, it is the use of pressure and the remaining alveolar bone in the mouth to create the upper and lower jaw, you can remove the full denture, in general, the denture is cheaper, but also can exercise a simple chewing function, but this denture requires patients to remove every day, and the bite force is also relatively poor. There is also an implant denture, which is a full denture with implants in the upper and lower jaws and a fixed denture on top of the implants.