METHOD FOR PRODUCING AN ELONGATE SUPPORTING PART IN A REPLACEMENT CONSTRUCTION, AND SUCH A SUPPORTING PART MANUFACTURED USING THIS METHOD

摘要

A supporting part (28) for a denture (21) will be produced in one piece, or in two or more partial pieces which are assembled, Surface-reading members (22) are in this case used for forming digital repre sentations (23) which are supplied to computer equipment , by means of which machining information items (25) are generated. The suppor ting part original is produced with the aid of working models, and a blank is applied in holders which can be applied in a machinin g device which is controlled by the machining informatio n. Electro-erosion tools are created with the impression model/working model. T he tools include electro-erosion electrodes at positions for the dummies for the implants or their spacing members. Using the electro-erosion equipment, the machined blank is provided with recesses for bridge parts which are to bear against the implants or their spacing members . The contact surfaces on the bridge parts and the conne ction surfaces on the implants bear against each other with great precision, and t he inclinations of the bridge parts coincide with the in clinations of the implants or are slightly displaced in parallel with respect to the la tter.