Work Instruction COMFOUR®

29 OCCLUSALLY SCREW-RETAINED PROSTHETICS ON CAMLOG ® AND CONELOG ® BAR ABUTMENTS Titanium cap for bar abutment Height 14.0 mm FABRICATION OF PROSTHETIC RESTORATIONS SINGLE CROWNS PROSTHETIC OPTIONS A single crown restoration can be fabricated optionally with a titanium cap for bar abutments, for crowns, or by using a crown base for bar abut- ments, for burn-out. Fabrication follows the usual manner in dentistry according to the design of the “reduced crown shape” using suitable materials. SINGLE CROWNS WITH TITANIUM CAPS FOR BAR ABUTMENT The instructions for making single crowns are described on page 27 under “Temporary and final restoration with titanium caps for bar abut- ments, for crown and bridge”. SINGLE CROWNS WITH CROWN BASE FOR BAR ABUTMENTS, BURN-OUT The crown base consists of burn-out plastic (POM), is fitted with an inner hex design as antirotational mechanism and can be used to fabricate a cast single crown. The crown base is fixated on the bar lab analog using a brown anodized lab prosthetic screw for bar abutments, hex, corre- sponding to the diameter. The crown base can be shortened occlusally to the height of the screwed lab prosthetic screw. The overall height of the base is 14 mm. CAUTION To avoid deforming the bar base, only tighten the lab prosthetic screw lightly by hand.