(A) The prefabricated SynCone abutment, which is composed of 2 cones. The bottom cone is for the tapered implant abutment connection, and the top cone is for accepting the superstructure of the prosthesis. The central screw positions the orientation of the 2 cones into a secure position. (B) Surgical placement of implants did not provide for a parallel relationship of the abutments of 2 or more implants. The angled SynCone abutment is shown on the right. (C) The alignment tools with extensions are placed on the abutments. (D) The extensions provide a visual method of assessing a common orientation. (E) The abutments are rotated until a common orientation is observed that will allow the fabrication of the final prosthesis (ie, the extensions are aligned and parallel), and the central screws are then tightened. (F) This relationship is transferred to the mouth by using resin keys as described above