US Patent 6957957 Molar appliance for orthodontic therapy
Patent 6957957 was granted and assigned to 3M on October, 2005 by the United States Patent and Trademark Office.
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Patent abstract
An orthodontic appliance for a molar tooth has a latch that is movable between an open position to admit or release an archwire into an archwire slot and a closed position to retain the archwire in the archwire slot. In one aspect of the invention, the appliance lacks tiewings and has a mesial archwire guide that is spaced from a distal archwire guide by a channel that extends in a generally occlusal-gingival direction across the appliance. In another aspect of the invention, the appliance includes a flange with at least one groove for retaining a wire segment or other item in place.
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Patent Inventor Names
Jirina V. Pospisil0
Date of Patent
October 25, 2005
0Patent Application Number
102871650
Date Filed
November 4, 2002
0Patent Primary Examiner
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US Patent 6957957 Molar appliance for orthodontic therapy
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