A whole denture, or complete denture, is a full replacement for all of your teeth that takes up the entire mouth, the upper or lower jaw, rather than just a portion. Where removable partial dentures only replace a few natural teeth, complete dentures replace every tooth. It's a removable device that may be used to replace missing teeth and is worn by individuals who have lost all of theirs. Acrylic is frequently used to create complete dentures (false teeth) because it's a lightweight, strong material.