Abstract: A device for the production of a dental working model for preparation of a prosthetic work comprises a body member having a blind arcuated cavity bounded by facing inner and outer cavity walls, for receiving semi-liquid model material. The blind end of the arcuate cavity is closed by a sacrificial membrane which is integral with the body member. The membrane is of sufficient thickness to contain the semi-liquid model material within the arcuate cavity and of sufficient thinness to be easily removed, for example, by grinding.
Type:
Grant
Filed:
December 3, 1998
Date of Patent:
August 8, 2000
Assignee:
Regency Technologies Limited
Inventors:
Lawrence Stephen Browne, Raymond Terence Clenton, Trevor Howard Neve, Derren Neve