Pin-retained restorations for severely worn posterior teeth.

Restoring severely worn posterior teeth with cast restorations presents a challenge to the dentist. The shortened clinical crowns have insufficient axial wall length for adequate retention and resistance form. Pins, along with other preparation retentive forms, can avoid periodontal support loss created by lengthening procedures. This article describes pin preparation of severely worn mandibular premolars and molar restoration by pin-retained gold castings. These and other teeth are used for retention of a mandibular removable partial denture.