Atypical implant situations 651

contact the center of this ridge, they would completely fall lingually and not meet the opposing teeth.

The patient's remaining mandibular teeth included the right cuspid, first and second bicuspids, the left cuspid, and the second bicuspid (Fig. 15-71) . When her lower jaw was retruded to centric occlusion, her right mandibular teeth were extend-

Fig. 15-73. Both arches of teeth were prepared together.

Fig. 15-74. A prefabricated lower full arch acrylic-facinggold occlusal prosthesis was fabricated. The upper arch included bilateral templates and superstructures with pink acrylic saddles to build the arch out buccally.

Fig. 15-76. The upper prosthesis was cemented into position.

A

B

Fig. 15-75. Both full arch prostheses held together. The maxillary superstructures are seen fitted over the corresponding scalloped templates.

Fig. 15-77. A, Pin implants were carefully driven through the template and angulated in such a manner as to end deep in the zygomatic arch. B, The pins were then shortened and notched.