MAK / CHIO
Figure 6: Five implant fixtures were placed using a fully guided surgical protocol.
Figure 7: A flap was raised in the 11 region as buccal bone grafting was required due to a bony defect.
and fixed to the printed guide/framework. The design of the previous PFM was also copied and replicated in the digital planning of the temporary bridge. It was then printed using the Asiga Max UV and GC Temp PRINT (medium shade) set at 50µm on the 3D printer.
Guided Implant Surgery and First Provisionalization Phase The following clinical procedures were then completed on the day of implant surgery: • All five implant fixtures were placed following a fully guided surgical protocol with the surgical guide (Fig. 6) and primary stability was confirmed. • A flap was raised in the 11-21 region, a bone graft with
bovine cancellous particulate was placed and covered with a porcine collagen membrane. Cover screws were placed and primary closure was established after a relieving incision and closed with PTFE sutures. At the other implant sites (16, 14 and 25), healing abutments were placed (Fig. 7). • The 3D-printed temporary bridge was then cemented with GC Fuji TEMP LT on the remaining natural teeth (Fig. 8). A healing period of 16 weeks allowed complete osseointegration of the implant fixtures. During this period, tooth 24 (upper left first premolar) developed signs and symptoms of pulpal necrosis. Hence, it was endodontically treated (Fig. 9).
Figure 8: Immediate post-operative following guided implant surgery and temporary cementation of the provisional fixed bridge printed from GC Temp PRINT (medium shade).
8 INTERNATIONAL DENTISTRY – AUSTRALASIAN EDITION VOL.16, NO. 1
Figure 9: During the healing phase, tooth 24 developed pulpal necrosis and was endodontically treated.
