The Development of the Cast Mesh Bar for a Hybrid Denture
Posted Mar 16, 2022 in Technical
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Read how Joel Cash—a 40-year industry veteran—went back to analog technology to develop a technique that produces a stronger and more predictable hybrid denture.
I fabricated my first screw-retained, metal-reinforced bridge using cast bars in the early 1980s while working for Dr. Gordon Christensen. In 2010, I was introduced to the new CAD/CAM milled bars and was intrigued by the concept; however, I began receiving repairs because the acrylic was coming off the milled bar. Since I felt the bars didn’t effectively reinforce the acrylic bridge, I began experimenting on my own, trying different CAD/CAM designs as well as mesh designs using a traditional casting technique.
After a few years of trial and error, I came up with my solution: the Cast Mesh Bar that consists of a cast chrome cobalt bar overlaid with a raised chrome cobalt mesh that allows the acrylic to flow through and bond with the mesh.
Because...