Esthetic Cast Direct Retainers for Distal Extension Removable Partial Dentures

Abstract

Extra-coronal cast direct retainers are an essential component of cast removable partial denture prosthesis. However, the conventional cast circumferential clasp or the bar clasp may appear unaesthetic due to visible metal display when used in the smile zone. This article describes two designs to facilitate hiding them as an alternative to the conventional extra-coronal cast direct retainer assembly for the distal extension partially edentulous situation. Necessary descriptions with steps of construction given for two cases.