This case has already been in the mouth of my secretary for over seven years, figs. 187, 188, 189. A postero-antero roentgenogram reveals quite clearly the curvature of the blades around the arch and the restoration they have been supporting, fig. 190.

It is possible, at times, to utilize only the anterior portion of the totally edentulous mandible, fig. 191, for denture support using two double posted blades, figs. 192, 193, 194. Plastic copings are fitted over the blade posts, fig. 195, to facilitate an Andrews type bar system joined by four copings, fig. 196, which is cemented over the protruding implant posts, figs. 197, 198,

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