Bar constructions are in many cases the best solution for removable prostheses. The bar abutment offers an extensive choice of fabrication options using prefabricated and custom-milled bars because of the wide variety of secondary components available. Burn-out, cast-on, solderable and laser-weldable bar bases are available for bar abutments. In addition, the Passive Fit System is an option, which consists of a burn-out bar sleeve and a titanium bonding base. This provides the option of fabricating cast bars that are absolutely tension-free. The bar abutment comes in three gingiva heights (0.5, 2.0 and 4.0 mm) and is available in implant diameters 3.3, 3.8, 4.3, 5.0 and 6.0 mm (Bar abutment diameter 3.3 mm only in gingiva heights of 2.0 and 4.0 mm).