Maxillary protraction device with chin-cup

Details Maxillary protraction device with chin-cup Maxillary protraction device with chin-cup

2006-08-15

2006-08-15

Wilson, John J (Department: 3732)

Dentistry

Orthodontics

Including extra-oral force transmitting means

Reexamination Certificate

active

07090489

ABSTRACT:
A maxillary protraction device (12) characterized with a chin-cup (1); one or more front hook-levers (2) on the front section of said chin-cup (1) to exert a force horizontally and forwards to the maxilla; at least two lateral linear hooks (5) located at the sides of the chin-cup (1) to exert an upwards force to the mandible, front recess (6) to be used for engaging the hooks (2and5) to the chin-cup (1) to which the front hook is engaged in a length-adjustable manner, in the same number as that of hooks; and fixing members (9) in the same number as that of hooks.

REFERENCES:
patent: 3401457 (1968-09-01), Hickham
patent: 4375355 (1983-03-01), Dahan
patent: 4375962 (1983-03-01), DeWoskin
patent: 2413076 (1979-07-01), None
patent: 97043975 (1997-11-01), None

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