Reduced interarch distance, resulted from extrusion of antagonist teeth and/or down growth of alveolar bone due to long-time absence of natural teeth without adequate restoration in this area, is found in many cases. In such condition, it is difficult to fabricate a distal free-end removable partial denture with conventional resin base because of insufficient space for denture base resin, metal framework and artificial teeth, and the long-term prognosis of the denture is questionable due to minimized strength of the denture base. These designs provide strength, esthetic and masticatory function to the denture, and the denture base is convenient for future denture repair or relining.
Keywords: Reduced Interarch Distance, Overlay Prosthesis, Removable Partial Denture.
