A removable denture is a denture that is fixed to the adjacent teeth by a retainer, consisting of a base, a retainer and an artificial denture. They are less comfortable to wear in the mouth, slightly less aesthetically pleasing, and more troublesome to take down and clean after each meal. Young people tend to have fewer missing teeth, and there are more patients with 1-2 missing teeth, and this kind of patients wear the removable denture because the abutment is smaller, the possibility of accidental swallowing is greater. Therefore, it is recommended for young people to have a fixed denture, which can be fixed on the neighboring teeth and is more comfortable, and does not need to be removed, has better color and aesthetics, and is more efficient in chewing. In addition, the better choice for such patients is dental implants, that is, if there are fewer missing teeth, dental implants are preferred. That is, the denture is fixed to the missing tooth’s alveolar bone by means of an implant nail, and the dental implant form is similar to that of natural teeth.