The fixation of dentures is based on different types of dentures such as movable denture, fixed denture, implant denture, etc., which are roughly fixed to the clasps and abutments, fixed to the healthy teeth, fixed to the implanted tooth roots and so on. 1. Removable Denture: Removable denture relies on the denture’s ring and abutment to fix the position, the denture can be taken off and put on by oneself, and it doesn’t need to wear down the small neighboring healthy teeth, and the damage to the other teeth is relatively small, it can be taken off every day and cleaned. 2. Fixed Denture: Fixed denture is fixed on the surrounding healthy teeth, patients can not take off and wear, comfort, stability and chewing efficiency is slightly better than the movable denture, but long-term wear may wear down the surrounding healthy teeth, causing caries of healthy teeth. 3. Implant denture: Implant denture is also a kind of fixed denture, which needs to be implanted with artificial tooth roots. The aesthetics, comfort, retention and chewing efficiency of implant denture are better, but the price is relatively high, and the restoration time is longer. Patients can choose the right type of denture according to their own situation and needs under the guidance of the doctor, and carry out the necessary cleaning and maintenance in time.