When all four anterior teeth are missing as well as the two posterior quadrants, fig. 38, often a specially designed blade is implanted anteriorly between both cuspids. The tissues are incised and reflected to expose the bone and grooves are made, fig. 39. The blades are inserted, fig. 40, and tapped to their proper depths, fig. 41, and sutured, fig. 42. After healing, fig. 43, the bridge is completed, figs. 44, 45. A final x-ray shows the completed case, fig. 46.

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