Dentistry – Apparatus – Having gauge or guide
Patent
1993-12-13
1995-04-04
Lucchesi, Nicholas D.
Dentistry
Apparatus
Having gauge or guide
433 53, 433 57, A61C 1900, A61C 1100
Patent
active
054031850
ABSTRACT:
An improved method and apparatus for producing a dental prosthetic with a minimum of time and labor. The preferred embodiment of the invention compresses first and second trays which are hingedly secured to allow articulating movement of the trays with respect to each other. At least one of the trays is provided with a grid having a plurality of holes in a spaced pattern to receive pins for supporting the model. In operation, one of the trays is filled with plaster and the negative impression of the teeth is placed therein. The operator then closes the articulator temporarily to determine the optimum location of the pins with respect to the various teeth marks in the impression. The pins are then inserted into the appropriate holes in the opposing tray, with the pins being parallel to each other. The impression is then filled with plaster and the tray containing the pins is then closed to cause the individual pins to be inserted into the plaster at the predetermined locations. After the plaster is hardened, the upper tray is rotated away from the plaster, with the pins remaining in the aligned position within the impression. The plaster model can then be removed to allow further work to be performed on the teeth of interest.
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