Work Instruction COMFOUR®

36 OCCLUSALLY SCREW-RETAINED PROSTHETICS ON CAMLOG ® AND CONELOG ® BAR ABUTMENTS After trimming, brown anodized lab prosthetic screws are used to attach the titanium bonding bases on the working model. The bar is placed on the titanium bonding bases and the fit checked. If the bar is seated tension-free on the working model, it can then be bonded to the titanium bonding bases on the implants after the try-in in the mouth. 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 ten- sion-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 contact with the bonding material. We recommend covering the internal hex of the screw head with wax. After the bonding material has cured, the prosthetic screws are loosened, the bar removed from the bar abutments and the excess bonding material carefully removed. INSERTING THE BAR CONSTRUCTION The finished bar construction is transferred to the bar abutments and screw-retained finally with new unused blue anodized prosthetic screws, using a screwdriver, hex, with 15 Ncm. The newly created full denture is then inserted and checked for proper fit. BONDING A CAST BAR TO THE TITANIUM BONDING BASES The titanium bonding bases are placed on the bar abutments in the mouth and screwed hand-tight using blue anodized prosthetic screws for bar abutments, hex. Placing the titanium bonding bases