This case shows a subperiosteal implant with a horizontal superstructure bar. The posterior portions on both sides of the implant had to be severed and removed because of bone loss and the bar was also removed, figs. 1, 2. From an elastic impression of both posts copings were made to fit over the remaining posts and slide along the cables, figs. 3, 4, 5. The groove was made, fig. 6, and the ramus blade tapped to place, figs. 7, 8, 9, and the coping is tapped over the left subperiosteal post, figs. 10, 11. The procedure was duplicated on the other side, figs. 12, 13, 14, 15,

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