432 Theories and techniques of oral implantology

tion with hard cement (Fig. 10-173). The right posterior bridge was then cemented into position with hard cement, being supported anteriorly by the gold coping and posteriorly by the prepared molar tooth (Fig. 10-174).

The left quadrant was then cemented into position by placing oxyphosphate of zinc cement in-

side the cuspid crown only (Fig. 10-175). The pin implants were drilled through the template and trimmed (Fig. 10-176), and the pins were then fused with acrylic cores. Sometimes, as in this case, the three pins are fused together with two acrylic cores instead of one because of the influence of the anatomic landmarks on the pin placement. For ex-

Fig. 10-173. The anterior quadrant is secured to the abutment teeth with oxyphosphate of zinc cement.

Fig. 10-174. The right posterior quadrant is cemented into position utilizing the lateral incisor thimble and molar tooth preparation as the abutments.

Fig. 10-175. The left posterior quadrant cemented into position.

Fig. 10-176. The pin implants are drilled into the bone, passing through the template.

Fig. 10-177. The acrylic cores are built up to affix the pins together. They are then prepared for full crown restorations.

Fig. 10-178. The superstructure is cemented over the template.