toured in order to avoid improper design and how the gold coping was left uncovered to act as the posterior support and how the interproximal embrasure between the gold coping and the last crown was maintained, figs. 250, 251. In this manner the patient was able to continue flossing in between the final restorations, figs. 252, 253, 254, 255, 256. A post-operative x-ray, fig. 257.

In this edentulous situation, fig. 258, blades were inserted around the arch, fig. 259, but due to the unusually thick fibromucosal tissues which are very seldom present in the mandible the gold work, fig. 260, had to be designed in such a fashion that a long and thin collar would

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