CAMLOG Hybrid Restorations

34 HYBRID RESTORATIONS WITH THE CAMLOG ® IMPLANT SYSTEM LASER-WELDED BAR CONSTRUCTION BASE FOR BAR ABUTMENT, LASER-WELDABLE Laser-welded bar construction with prefabricated bar bases made of pure titanium (titanium Grade 4). A prosthetic screw for bar abutment (hex) based on the diameter is used to fix the bar base on the CAMLOG ® bar abut- ment. The height of the bar base is 5.3 mm. EXAMPLE: WORKING CAST WITH SOLDERING AIDS/BAR LAB ANALOGS FOR BAR ABUTMENTS (STAINLESS STEEL). The bar elements are cut accordingly and in consideration of a joining gap that is as small as possible fitted between the bar bases. After assembling all the components, the bar segments are welded together with the bar copings under sufficient argon gas purging and the bar is high- gloss polished. The bar must be seated tension-free on the CAMLOG ® bar abutments. IMPORTANT NOTE ABOUT LASER WELDING Blue discoloration on the welds must be avoided. These points to insuf- ficient purging with argon gas and to oxygen uptake of the titanium. Brittleness and associated weakness in the weld is the result. Observe the operating instructions of the laser devices used! After completing the bar construction, the final bar prosthesis with base re- inforcement out of metal is fabricated in the usual manner. The teeth are positioned based on the principle of modern complete dentures. An exist- ing full denture can also be converted into a bar-retained prosthesis with suitable bar matrices. IMPORTANT NOTE The matrix should be placed before fabrication of the prosthesis with a suitable relief wire. Only then is vertical translation of the prosthesis on the bar ensured. Base for bar abutment, laser-weldable Setting up the bar bases Bar bases with fitted prefabricated bar components made of pure titanium BAR RESTORATIONS