A device, one component of which is fixed to an abutment or abutments and the other is integrated into a fixed or removable prosthesis in order to stabilize and/or retain it.
An intracoronal dental restoration, made outside the oralcavity to conform to the prepared cavity, which restores some of the occlusal surface of a tooth, but does not restore any cusp tips. It is retained by luting cement. (American College of Prosthodontics; The Glossary of Prosthodontic Terms)