A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
83/8
A61C 9/00 (2006.01) A61C 19/00 (2006.01)
Patent
CA 1253015
ABSTRACT A dental impression tray and method of using it to form in a light-polymerizable impression material an im- pression of a portion of dental anatomy in an oral cavity, the tray being formed of transparent substantially rigid material, preferably clear plastic, and molded into a channel-like shape defined by walls capable of having visible actinic light applied to the walls of the tray for transmission along and through the walls, and substantially all the exterior surfaces of the walls having light reflect- ing metal foil or the equivalent applied thereto for the dual purpose of preventing unintentional light exposure to material in the tray and subsequently providing a light reflecting surface operable to reflect light into the impression material. The tray also may be loaded with polymerizable impression material and have a cover sheet sealed to the rim of the tray and thereby become a package conveniently ready for use simply be peeling the cover sheet from the rim of the tray to expose the impression material for immediate impression onto dental anatomy of which a model is to be made.
486501
Dentsply International Inc.
Smart & Biggar
LandOfFree
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