Implant Placement and Immediate Final Rehabilitation

rehabilitation prior to cementation, the bonding bases were mounted to the bar abutment with the prosthetic screws (Fig. 83). The basal portions of the sleeves were filled with Fit Checker (Fig. 84), and the rehabilitation was then placed over the bar abut- ments. In this way, any positional discrepancies that would prevent bonding of the bonding bases were identified. Prior to definitive bonding, the screw heads were filled with wax for protection (Fig. 85). Adhesive was applied sparingly to the basal seg- ments of the metal base, and all excess material was immediately removed through the lingual windows of the bar sleeves. An oxygen blocker was used for polymerization (Fig. 86). Once the adhesive had hard- ened, the prosthetic screws were released through the bar sleeve chimneys and the rehabilitation was removed (Fig. 87). The adhesive gaps offer a certain space to compensate for any small discrepancies between the proposed and actual implant positions (Fig. 88). EDI Case Studies 19 Fig. 83 Tightening the prosthetic screws on the bonding bases and suturing. Fig. 87 Basal view of the denture following bonding of the bonding bases. Fig. 85 Closing the Allen screw heads with wax. Fig. 86 The mandibular rehabilitation inserted for bonding. The bond- ing sites are covered with oxygen blockers. Fig. 84 Basal view of the bar sleeves after verification with Fit Checker. Fig. 88 Detail of an adhesive base.