Fabrication of resin-bonded three-unit prostheses

This article describes the fabrication of two fiber-reinforced poly-glass ceramic three-unit fixed prostheses. A second-generation laboratory-processed polymer-glass ceramic material (Sculpture) that utilizes a resin-impregnated translucent fiber framework (Fiberkor) was used to fabricate two fixed resin-bonded prostheses. The abutment teeth of one appliance required the use of a full coverage preparation and an inlay design. The other prosthesis required an inlay preparation and onlay configuration. Two three-unit provisional prostheses were fabricated and inserted using eugenol-free temporary cement. With the fabrication of the fixed appliances, they were bonded to the abutment teeth with resin cement. The insertion of the two fixed appliances using the polymer-glass ceramic material provided the esthetic advantage of translucency, while avoiding the appearance of metal.