A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
83/22
A61C 13/00 (2006.01) A61C 19/04 (2006.01) G05B 19/42 (2006.01) A61C 9/00 (2006.01)
Patent
CA 1157299
ABSTRACT OF THE DISCLOSURE For the manufacture of a denture, or artificial teeth, the prepared tooth stump is reproduced as a working model, and the substitute piece, suitably conformed to the working model, is shaped by hand. In order to facilitate the dentist's work, and at the same time attain great accuracy, it is provided that reproduction of the tooth stump is accomplished electro-optically in such a manner that reproduction-information signals corresponding to the tooth stump are generated and are converted in an electronic com- puter into electrical and/or magnetic control singals with the aid of which a milling machine automatically mills the working model out of a block of material; and/or that the positive substitute piece is milled by the milling machine from a block of material in accordance with control signals which are derived from reproduction-information sign- als which are electro-optically derived from the hand-shaped substitute or replacement mode. The device for carrying out the method is characterized by an optical reproduction- photographing device for sweeping over the portion of the tooth in question; furthermore, by an electronic computer for sensing and evaluating the reproduction-information signals generated by a reproducing device, a milling machine, and/or if necessary, a storage apparatus.
360107
Heitlinger Paul
Rodder Fritz
Heitlinger Paul
Marks & Clerk
Rodder Fritz
LandOfFree
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