Endosseous blade implants 519

socket, and on the right side, extending as far anteriorly as the buccolingual thickness of the bone permitted (Fig. 11-178). Anteriorly it was impossible to make a groove. Not only was the bone knife-edged, but the entire maxillary process flared out, making it impossible to parallel an anterior groove with the two posterior ones.

The elastic impression included a good portion of the palate as well as the alveolar grooves. From this impression a stone cast was poured. The design and depth of the blades were once again determined by x-rays, and the grooves were made directly in the stone model to coincide with the x-ray findings. A duplicate model on which the horseshoe palatal blade

Fig. 11-185. The splint cemented in position.

Fig. 11-186. The final Panorex. The mandibular arch was later restored.