Combined die-investment stone and die-stone cast for making resin-retained prostheses

A technique has been presented for developing a combined die-investment stone/die stone-full arch working cast for use in making a resin-retained prosthesis. The advantage of the technique is that it affords the opportunity to articulate the working cast with a cast of the opposing arch and make the framework directly on a refractory material, while minimizing the subsequent need to trim the refractory material.