fitted over the bone accurately and the anterior cross-over struts fitted exactly into the grooves, figs. 232, 233. Healing was excellent, fig. 234, and the dentures given to the patient, fig. 235. Fig. 236 is the post-operative x-ray.

A convex tissue bearing denture surface, fig. 237, revealing a concave clinical picture, fig. 238. Enough bone still existed anteriorly, fig. 239, although the inferior alveolar nerve was easily lifted out of its unprotected canal, figs. 240, 241. Healing, here too, was excellent, fig. 242, and the case successful, fig. 243.

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