Dental arch appliances

Details Dental arch appliances Dental arch appliances

1991-12-02

1995-04-18

Brown, Michael A.

Surgery

Body protecting or restraining devices for patients or infants

Head or face protector

128861, A61C 514

Patent

active

054069629

ABSTRACT:
An intra-oral appliance that is associated with a pair of dental arches having a trough for receiving an upper dental arch. A second layer in a covering relation to the first layer opposite the trough, the second layer being relatively harder than the first layer. A third layer in covering relation to the second layer opposite the first layer. The third layer is relatively harder that the second layer.

REFERENCES:
patent: 2833278 (1958-05-01), Ross
patent: 3124129 (1964-03-01), Grossberg
patent: 3303844 (1967-02-01), Johnson
patent: 3943924 (1976-03-01), Kallestad
patent: 4765324 (1988-08-01), Lake
patent: 4955393 (1990-09-01), Adell
patent: 5003994 (1991-04-01), Cook
patent: 5031638 (1991-07-01), Castaldi
patent: 5103838 (1992-04-01), Yousif

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