over the blade post, figs. 167, 168, 169, 170, 171. The superstructure was placed over the subperiosteal implant posts and the blade post, fig. 172, and pulled off with an alginate impression to obtain an accurate impression of the soft tissues, fig. 173. The tissues healed uneventfully, fig. 174, and the implant denture having five clasps rather than four was snapped into position, figs. 175, 176. The x-ray reveals the blade on the right side and the implant coping over it, fig. 177.

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