Dentures are prosthetic teeth, which cannot be self-adhesive if they are dislodged. If due to occlusal trauma dislodgement, need to be adjusted after re-adhesion, if adhesive failure dislodgement, need to replace the adhesive, if due to poor design dislodgement, need to re-design the production of denture, specific as follows. 1. Because of occlusal trauma: the denture exists early contact, and interference can be occlusal trauma caused by denture dislodgement, need to be adjusted after the denture will be polished, and then re-adhesive. 2. Dislodgement due to adhesive failure: due to wrong choice of adhesive, the residual adhesive can be removed and a better quality adhesive can be chosen for re-adhesion. 3. Loss of denture due to poor design: The denture is lost due to poor retention or poor fit between the restoration and the tooth, etc. It is necessary to redesign and prepare the tooth to make a new denture for cementation. It is recommended to go to a regular medical institution to receive professional treatment.