Direct-formed mouthguard, a blank for use in making the mouthgua

Details Direct-formed mouthguard, a blank for use in making the mouthgua Direct-formed mouthguard, a blank for use in making the mouthgua

1990-03-13

1991-07-16

Hafer, Robert A.

Surgery

Body protecting or restraining devices for patients or infants

Head or face protector

128862, A61C 514

Patent

active

050316389

ABSTRACT:
A direct-formed mouthguard is provided. The mouthguard is formed from a blank which includes an inner layer, a rigid core disposed adjacent to and coextensively with the inner layer and an outer layer disposed adjacent to and coextensively with the core. Impressions of the user's intra-oral structures are made in the inner and outer layers by heating the blank to a predetermined temperature range and subjecting the blank to bite pressure. The impressions are set and the finished mouthguard is formed by cooling the blank below the predetermined temperature range. The core is formed from a material having a softening temperature above the predetermined temperature range and therefore provides structural support for the inner and outer layers when the blank is heated to the predetermined temperature range and after the blank is cooled to form the finished mouthguard.

REFERENCES:
patent: 3073300 (1963-01-01), Berghash
patent: 3089487 (1963-05-01), Enicks
patent: 3303844 (1967-02-01), Johnson
patent: 3379193 (1968-04-01), Monaghan
patent: 3385291 (1968-05-01), Martin
patent: 3411501 (1968-11-01), Greenberg
patent: 3416527 (1968-12-01), Hoef
patent: 3505995 (1970-04-01), Greenberg
patent: 3527219 (1970-09-01), Greenberg
patent: 3864832 (1975-02-01), Carlson
patent: 3943924 (1976-03-01), Kallestad
patent: 4063552 (1977-12-01), Going
patent: 4944313 (1990-07-01), Katz

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