Attachment-retained restorations

UNIABUTMENTBar fabricationWorking modelPlace the UniAbutment Replica in theUniAbutment Pick-up. Check the impression forcorrect and stable retention of the abutment replicas.Tighten the replica into the impression tray.Fabricate a working model with the abutmentreplicas and high-quality stone material.LABORATORY PROCEDUREBar fabricationPlace the Semi-Burnout Cylinder on the replica andtighten it with a Laboratory Bridge Screw. The plasticpart of the cylinders are cut back to appropriatedimensions.CustomizingReduce the bar height, leaving a minimum of 2.5 mmto ensure a proper fit of the inserts.Note: Do not grind the retention surface of the bar.Attach the bar to the plastic sleeve with a materialthat has a low polymerization shrinkage.WaxingCover the plastic parts of the cylinders with a thinlayer of wax to get an accurate casting.33