Another case showing the extremely flat ridge, fig. 145. The underlying knife-edge ridge, fig. 146, was widened so a groove could be made, fig. 147, to accommodate the bladevent, figs. 148, 149. The tissues are sutured, fig. 150. Grooves are made in each ramus, figs. 151, 152, and independently of one another each side was completed, figs. 153, 154, 155, 156, 157, 158, 159. The healing was uneventful, figs. 160, 161, and a lower non-tissue bearing denture was fabricated to "snap-on", fig. 162. The post-operative x-ray, fig. 163.

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