Patent ID: 6318997
Filing Date: 2001-11-20
Classification: A61C

Abstract:
A device for use with a dental impression tray having a tray top, a tray bottom and a tray portion defining a lingual recess to block entry of plaster or other casting material into the lingual recess when a cast is being made in the dental impression tray, said device comprising a block member including an outer engagement surface, said block member being selectively positionable in the lingual recess of a dental impression tray with the outer engagement surface thereof in engagement with the tray portion defining the lingual recess or removable from the lingual recess, said block member being of a size and configuration to be releasably retained in the lingual recess due to engagement between said dental impression tray and said block member, said block member being of unitary and compressible construction and said block member including a primary block member segment having said outer engagement surface, said outer engagement surface being curved, and a secondary block member segment attached to said primary block member segment and including an outwardly projecting lip extending beyond said outer engagement surface and positioned over said tray top when said block member is releasably retained in the lingual recess due to frictional engagement between said dental impression tray and said block member.