Implant Placement and Immediate Final Rehabilitation

The holes in the master cast must be drilled so that the implant analogs can all be inserted simultane- ously. If necessary the holes can be enlarged to allow for this. After filling the holes in the cast with resin, the stent was placed on the cast so the housings clicked into place (Figs. 55 and 56). In this way, the pre- cise vertical positioning and axial orientation for the implants were precisely transferred to the cast. The luting of the implant analogs followed the same principles as for intraoral impressions and had to be performed very carefully. Once the stent had been removed, the remaining adhesive gaps were filled (Fig. 57). The vestibular/lingual putty matrices indi- cated the space requirements for the prosthesis (Figs. 58 and 59). Based on the gingival/vertical clearance to be expected, appropriate bars for the passive-fit technique were screwed to place (Fig. 60). EDI Case Studies 14 Fig. 56 Template placed on the implant analogs bonded to the master cast. Note the clearance around each implant analog. Fig. 60 Master cast with screwed-in bar abutments. Fig. 59 Lingual silicone bite rim. Fig. 57 Master cast with the bonded implant analogs. Fig. 58 Vestibular silicone bite rim. The space available for the prosthetic structure is clearly visible. Fig. 55 A syringe is used to introduce the adhesive into the drill holes (do not overfill).