A film of saliva typically helps hold dentures in place. Denture adhesives may be used if the salivary glands do not produce a sufficient amount of saliva. Denture adhesives are not, however, a remedy for ill-fitting dentures. A denture that fits poorly (i.e., feels loose or causes discomfort) may need to be relined or replaced as it can contribute to the development of mouth sores.
An overdenture is a removable dental prosthesis that covers and rests on one or more remaining tooth roots. A removable partial denture is a dental prosthesis that replaces some teeth and is built around existing natural teeth. Both the overdenture and the removable partial denture may be connected to the remaining tooth roots or remaining natural teeth with anchors made of metal or plastic. These connections improve stability and the retention of both prostheses.