Dental impression tray

Details Dental impression tray Dental impression tray

1987-11-13

1989-09-19

Wilson, John J.

Dentistry

Apparatus

Having static product shaping surface

433229, A61C 900

Patent

active

048676829

ABSTRACT:
A dental impression tray and method of using it to form in a light-polymerizable impression material an impression of a portion of dental anatomy in an oral cavity, the tray being formed of transparent material, preferably clear plastic, and molded into a channel-like shape defined by walls capable of having visible actinic light applied to the walls transmitted both through and within the walls. At least some of the outer edge portions of the tray are beveled, guiding light that has entered the walls of the tray against exiting loss that would not be effective in initiating polymerization of the impression material.

REFERENCES:
patent: 3882601 (1975-05-01), Jahn
patent: 4267133 (1981-05-01), Kohmura et al.
patent: 4411625 (1983-10-01), Koblitz et al.
patent: 4449928 (1984-05-01), von Weissenfluh
patent: 4468202 (1984-08-01), Cohen
patent: 4521193 (1985-06-01), Cialone
patent: 4543063 (1985-09-01), Cohen
patent: 4544359 (1985-10-01), Waknine
patent: 4544467 (1985-10-01), Bunker et al.
patent: 4553936 (1985-11-01), Wang
patent: 4631030 (1986-12-01), von Weissenfluh

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