Dentures are false teeth made to replace teeth you have lost. Dentures can be complete or partial. Complete dentures cover your entire upper or lower jaw. Partials replace one or a few teeth. Both types are made in a dental lab, based on a mold (or an impression) of your mouth.
A partial denture is also called a "removable partial denture" or a "partial." It is made up of one or more false teeth, and held in place by clasps that fit onto nearby teeth. You can take the partial denture out yourself, for cleaning and at night. A partial denture may be used when nearby teeth are not strong enough to hold a bridge, or when more than just a few teeth are missing.
A full denture is also called a "complete denture" or "false teeth." It can be used when all your natural teeth are missing. Remember, you need to care for a denture as carefully as you would look after your natural teeth.