CAMLOG Hybrid Restorations

67 HYBRID RESTORATIONS WITH THE CAMLOG ® IMPLANT SYSTEM FABRICATING A TERTIARY FRAMEWORK FOR DOUBLE CROWN RESTORATIONS A metal framework is essential for stabilizing the acrylic base and securely retaining the secondary coping. To fabricate the tertiary framework, the working cast is blocked out, the coping is waxed over (0.3 mm for bonding gap) and then duplicated. The tertiary framework is built in wax on the duplicate cast with the silicone index as a control. The cervical margin of the secondary coping must be completely reproduced in metal. The tertiary framework can be fabricated from titanium or non-precious al- loy. Then roughen (e.g. sandblasting) the adhesive bonding surfaces of the secondary copings and tertiary framework to improve adhesion. The sub- sequent steps for complete fixation of the secondary components are done in the patient’s mouth. BONDING OF THE SECONDARY COPING INTRAORALLY We recommend bonding the secondary copings in the tertiary framework intraorally with a suitable metal bonding material. The modified CAMLOG ® abutments (primary crowns) are placed in the cleaned CAMLOG ® implants and the CAMLOG ® abutment screw is hand-tightened. The secondary cop- ings are then placed on the CAMLOG ® abutments. Then the tertiary frame- work is placed and the fit is checked with the secondary coping to ensure that it is seated securely and with an even cement gap. Overwaxing/blocking out the working cast Finished duplicate cast