Fixed dentures known as crown and bridges , applied in partial teeth missing issues and prepared in the laboratory then cemented to supporting teeth. The supporting teeth must be prepared for this purpose and these dentures are cannot be removed by patients. These are more easily accepted than removable dentures by patients, but the existence of a number of conditions are necessary for implementation.
In the situation of one or more missing teeth, adjacent teeth are prepared and missing area is filled with the crowns that supported by prepared teeth.