Titanium Bases CAD/CAM Crown and Bridge Restorations

13 TITANIUM BASES CAD/CAM FOR CROWN AND BRIDGE RESTORATIONS BONDING OF THE SUPERSTRUCTURE CONDITIONING OF THE TITANIUM BASE CAD/CAM For bonding, the bonding surface of the titanium base CAD/CAM is sand- blasted with aluminum oxide 50 µm at max. 2.0 bar. Then ablate the bond- ing surface or clean with alcohol (bonding surface must be free of dust and grease). TIP: For sandblasting and bonding, it is recommended that the titanium base CAD/CAM be screwed to a corresponding lab analog to protect the implant-abutment connection and for easier handling. To protect the screw channel and to prevent the seepage of bonding material, the bonding aid can be used in place of a lab screw. The components are connected using a suitable bonding material. The bonding material is mixed according to manufacturer's instructions and applied to the titanium base CAD/CAM. The individually fabricated meso- structure, single crown or bridge restoration is mounted. In the case of a mesostructure or a single crown, this is rotated until the rotation-locking cam engages, then press the mesostructure/crown onto the titanium base as far as it will go. Major excess bonding material must be removed immediately. Suitable adhesives To bond the titanium base CAD/CAM to a mesostructure or single crown or bridge restoration, we recommend extraoral use of the bonding agent “PANAVIA™ F 2.0” from Kuraray Europe GmbH, or “Multilink ® Hybrid Abutment” from Ivoclar Vivadent AG. Observe the manufacturer's processing instructions. ALTATEC GmbH/CAMLOG Biotechnologies AG accepts no responsibility for the durability of the superstructure and the adhesive used. After bonding, remove the bonding aids and take the titanium bases/­ superconstruction from the model and clean from excess bond. INSERTION INTO IMPLANT Thoroughly clean and dry the inner configuration of the implants prior to final insertion of the titanium bases CAD/CAM. Then transfer the bonded and cleaned titanium bases/superconstruction assembly to the implants and fixate with new, unused CAMLOG ® or CONELOG ® Abutment screws. The abutment screws are tightened finally with a screwdriver, hex, incl. mounted torque wrench with a torque of 20 Ncm. Retighten with the same torque after approx. 5 minutes to reach the maximum screw tension. These values apply to all CAMLOG ® and CONELOG ® Titanium bases CAD/CAM. To ensure that the abutment screw can be removed again, the screw head is covered with a material which can be removed easily (i.e. wax or gutta-­ percha) and the screw channel closed for hygienic reasons, for example with composite. IMPORTANT NOTES • The prosthetic components must be cleaned and disinfected prior to final insertion. We recommend sterilizing of the components (see also the "Preparation Instructions for the CAMLOG ® /CONELOG ® Implant System", Art. No. J8000.0032). • The peri-implant hard and soft tissue situation must allow gapless insertion of the superstructure. • Only use new and unused abutment screws for final insertion. • For hygienic reasons the occlusal screw openings must be sealed occlusally, for example with composite.