Screw-On impression and laboratory components are used to create a model of the patient's mouth and reproduce the position and orientation of the Screw-On abutments, which the dental laboratory uses to precise manufacture the prosthetic restoration. Both open tray impression and closed tray impression components and are available and are identical for both the BioniQ QR and QN Screw-On abutments. Do you make digital impressions and use 3D-printed models instead of traditional plaster ones? Order Screw-On abutment analog – 3D print.