CAMLOG Hybrid Restorations

32 HYBRID RESTORATIONS WITH THE CAMLOG ® IMPLANT SYSTEM The bar framework is then placed on the titanium bonding bases and the fit checked. The bar must be placed on the titanium bonding bases tension- free. The bonding surfaces of the bar framework and titanium bases are then conditioned based on the manufacturer’s specifications. We recommend carefully sandblasting the bonding surfaces before bonding. When bond- ing, care should be taken that the prosthetic screw does not come into con- tact with the bonding material. We recommend covering the internal hex of the screw head with wax. After the bonding material has cured, the pros- thetic screws are loosened, the bar removed from the CAMLOG ® bar abut- ments, the excess bonding material carefully removed and the bar abut- ments removed. The new full denture is then fabricated on the working cast. INSERTING THE BAR CONSTRUCTION The CAMLOG ® bar abutments are transferred from the working cast to the CAMLOG ® implants and screwed in at the prescribed torques. The finished bar construction is transferred to the CAMLOG ® bar abutments and fixed definitely with new unused prosthetic screws, using a screwdriver (hex) with 15 Ncm. The newly created full denture is then inserted and checked for proper fit. CAST-ON TECHNIQUE BASE FOR BAR ABUTMENT, CAST-ON Cast bar version with prefabricated bar base made of high-melting cast-on alloy and burn-out plastic sleeve (POM) for cast-on technique. A prosthetic screw for bar abutment (hex) based on the diameter is used to fix the bar base on the CAMLOG ® bar abutment. The plastic sleeve of the bar base can be shortened occlusally to the height of the prosthetic screw. The over- all height of the base is 13 mm. WAX-UP The bar wax-up is created based on the planning on the burn-out plastic sleeve and bar base directly. The wax thickness over the plastic sleeve should be at least 0.3 mm. The bar base consists of a non-oxidizing alloy. Do not cover the fine gold margin of the base with wax. Prefabricated bar components made of wax / plastic can also be used to fabricate a pre- milled bar construction. CAUTION Do not cover the fine gold margin of the bar base with wax. This can lead to a surplus of cast-on alloy on or over the margin on the implant shoulder support. Base for bar abutment, cast-on Setting up the bar bases Shortened bar bases BAR RESTORATIONS