ORTHODONTIC APPARATUS WITH DILATING SCREW Russian patent published in 1999 - IPC

Abstract RU 2125851 C1

FIELD: medicine; orthodontia. SUBSTANCE: orthodontic apparatus has orthodontic rings for canine teeth (premolar teeth) and first permanent molars secured rigidly and coupled by tie-rods with Biderman dilating screw. Screw axis is positioned sagitally, and cut passes transversely. Catches for flexible connecting rod are secured on vestibular surface of canine teeth rings. Connecting rod passes behind palate surfaces of front teeth. Lip pellet is also secured on vestibular surface of rings. EFFECT: reduced time of treatment, convenience in use. 2 cl, 1 dwg, 1 ex

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RU 2 125 851 C1

Authors

Kosyreva T.F.

Dates

1999-02-10Published

1998-06-11Filed