A study of dental soldering. Part VIII. Distotion of non-precious ceramometal fixed bridge during the soldering

The purpose of this study is to mesure the three dimentional distotions and displacements in the Non-precious (Ni-Cr) ceramometal fixed bridge using the pre-soldered method.Following conclusions were obtained as a results.1. During the Pre-soldering stage, the distotion of soldered bridge frame (the potion was made with one-piece cast method) are minimal.2. During the Pre-soldering stage, the curve of fixed bridge frame was slight opened on horizontal plane, but on the vertical displacement was larger than others.