Cone-shaped cone made of metal foil for the production of the crown framework of a metal-ceramic veneer crown

摘要

1. Conical matrix of metal foil for producing a supporting member for a metal-ceramic veneered crown, comprising several pleats distributed along the circumference of the lateral area of the coping and extending substantially in the direction of a generating line, characterised in that the cross-sectional shape of each of the pleats (10) is a flat or flattened isosceles trapezoidal frame (100, 101), formed by an external base (100) and two inwardly converging lateral sides (101).