Implant position record and implant position cast: Minimizing errors, procedures and patient visits in the fabrication of the milled-bar prosthesis

This article describes a new rationale and method involved in the fabricati on of a patient detachable prosthesis supported by a milled bar. This simpl e procedure improves prosthesis retention. The overdenture is processed dir ectly over a milled bar, which provides an intimate relation between the ba r and the acrylic resin denture base to create resistance against rotationa l and lateral forces acting on the prosthesis. Incorporating simple and pre dictable attachments, with low maintenance needs, controls resistance to di slodgment along the path of insertion of the prosthesis. The concepts used in the fabrication of the milled bar include an implant position record (TP R) and an implant position cast (TPC) to reduce the need for time-consuming procedures, such as sectioning the cast bar and soldering it to make it fi t the abutments. This procedure also reduces the number of patient visits r equired of the completion of the prosthesis.