Dentistry – Prosthodontics – Attaching artificial tooth to base or adjacent artificial tooth
Patent
1992-05-15
1993-06-22
Hirsch, Paul J.
Dentistry
Prosthodontics
Attaching artificial tooth to base or adjacent artificial tooth
433181, 433194, A61C 13225
Patent
active
052212068
ABSTRACT:
Device for producing quick couplings for dental prostheses, of the type which includes at least one substantially spherical male element, which is intended to be monolithically integrated with a fixed part of the prosthesis, and a female element, whose inner shape is complementary to the shape of the male element, which is correspondingly provided on a removable part of said prosthesis, includes a pair of auxiliary bars, made of a calcinable plastic material, which are connectable one on top of the other, and which cooperate so as to define at least one compartment whose shape is complementary to the outside shape of a cap which defines the female element, the bars being arrangeable about the male element in order to obtain a model of a metallic piece of the removable part of the prosthesis to be produced by lost-wax casting.
REFERENCES:
patent: 1889756 (1932-12-01), McNamhra
patent: 2002048 (1935-05-01), Thomas
patent: 2151723 (1939-03-01), Trinkle
patent: 2672686 (1954-03-01), Herzberg
patent: 3473222 (1969-10-01), Kesler
patent: 4966553 (1990-10-01), Sandhaus
patent: 5030094 (1991-07-01), Nardi et al.
patent: 5133662 (1992-07-01), Metcalfe
Hirsch Paul J.
Josif Albert
Modiano Guido
Rhein 82 S.n.c. di Nardi Ezio & C.
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