When existing bridgework is present, it becomes easier to prepare deep rest seats into the gold work, fig. 16. In this particular situation the solder joints broke on both sides of an existing pontic thus creating the space. An impression of the edentulous space and the rest seats were taken and a prefabricated crown with two deep rests was fabricated, fig. 17, and fitted into position, figs. 18, 19. With a hand ratchet the vent-plant (here seen with a Dacron sleeve) fig. 20, was screwed into position. Figs. 21 and 22 show the final cementation of the crown and post-operative periapical film.

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