Dentistry – Orthodontics – Bracket
Patent
1981-03-16
1982-09-21
Hirsch, Paul J.
Dentistry
Orthodontics
Bracket
433 21, A61C 300
Patent
active
043504876
ABSTRACT:
Lock pin for a bracket having a body with an occlusogingivally extending opening, attaching flanges on the lingual side of the body for attaching the bracket to a tooth, and an archwire slot at the gingivolingual corner of the body for receiving one or more archwires, wherein the lock pin includes a tail or shank extending lingual of an archwire or archwires in the archwire slot and with a part having a mesiodistal width that fits snugly between the attaching flanges to prevent relative rotation between the pin and the bracket and a head fitting in the archwire slot having an archwire engaging face of a length at least equal to half the mesiodistal width of the bracket such that a part of the head extends beyond one side of the bracket body so that precise mesiodistal control between the bracket and the archwire can be achieved. In an alternate form the tail is disposed buccal to the head and the archwire.
REFERENCES:
patent: 2930126 (1960-03-01), Kesling
patent: 3134171 (1964-05-01), Kessler
patent: 3408739 (1968-11-01), Johnson
patent: 3445933 (1969-05-01), Kesling
patent: 3574940 (1971-04-01), Allesee
patent: 3686758 (1972-08-01), Kesling
patent: 3793730 (1974-02-01), Begg et al.
patent: 3835539 (1974-09-01), Wallsheim
patent: 4180912 (1980-01-01), Kesling
patent: 4242085 (1980-12-01), Wallsheim
TP Lab. Inc., catalog 905, 1978, p. 49 (lingual lock pin).
Henderlong Dennis B.
Kesling Peter C.
Hirsch Paul J.
TP Laboratories, Inc.
Wilson John J.
Zickert Lloyd L.
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