Dentistry – Orthodontics – Bracket
Patent
1999-11-15
2000-11-07
Lucchesi, Nicholas D.
Dentistry
Orthodontics
Bracket
433 8, A61C 300
Patent
active
061427764
ABSTRACT:
A lingual orthodontic bracket includes a bonding pad for attaching said bracket to a lingual side of a tooth. A base member is connected to the bonding pad, and opposing first and second wings are connected to the base member for engaging opposite end portions of an O-ring. An archwire slot is defined in the base member between the first and second wings and has an entrance in a direction of the second wing, opposing first and second walls, and a base wall positioned opposite the entrance in a direction of the base member. The archwire slot is configured to receive an archwire in a direction substantially directed from the second wing to the base member at an acute angle to a plane of the bonding pad. A pair of O-ring slots are defined in opposite lateral sides of the base member at a location where the base member connects to the second wing in such a manner that the connection between the base member and the second wing forming a T-shaped member in plan view. Each O-ring slot has a first wall substantially aligned with the entrance to the archwire slot and a second wall spaced apart from the first wall in the direction of the second wing by a distance approximately equal to the cross-sectional width of the 0ring to retain the archwire in the archwire slot by a compression-resistant force. A method for removably securing an archwire within the archwire slot of the lingual orthodontic bracket is also provided.
REFERENCES:
patent: 4337037 (1982-06-01), Kurz
patent: 4531911 (1985-07-01), Creekmore
patent: 4669981 (1987-06-01), Kurz
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