Base for holding a plaster of paris model of a set of teeth

Details Base for holding a plaster of paris model of a set of teeth Base for holding a plaster of paris model of a set of teeth

1988-05-12

1990-02-06

Housel, James C.

Static molds

Dental prosthodontic type

249 98, 249176, 264 17, 433 74, 433213, A61C 1100

Patent

active

048983594

ABSTRACT:
A base for holding a plaster of paris model for a set of teeth for the production of dentures, including a planar bottom to which is attached an upright circumferential exterior wall in the shape of a jaw. The base further includes perpendicularly projecting guide elements extending up from the bottom surface. The guide elements are tapered in the direction away from the bottom surface for example in the shape of a frustropyramid or frustocone and form at least one curved row which follows the curvature of the exterior wall in a U-shaped configuration. In preparing the plaster model within the base, the guide elements form corresponding holes in the plaster. The device may have a second U-shaped row of guide pins extending from the bottom surface to further guide and align the plaster mold when inserted into the base portion. This base then allows for the removal and reinsertion of a plaster of paris mold while maintaining the original and critical alignment of the model and or the individual pieces thereof.

REFERENCES:
patent: 3581398 (1971-06-01), Thomas
patent: 4022419 (1977-05-01), Haker
patent: 4116416 (1978-09-01), Segura
patent: 4283173 (1981-08-01), Browne et al.
patent: 4439151 (1984-03-01), Whelan
patent: 4494934 (1985-01-01), Huffman
patent: 4538987 (1985-09-01), Weissman
patent: 4608016 (1986-08-01), Zeiser
patent: 4708648 (1987-11-01), Weissman
patent: 4708835 (1987-11-01), Kiefer
patent: 4767330 (1988-08-01), Burger

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