Patent ID: 8021146
Filing Date: 2011-09-20
Classification: A61C

Abstract:
1. Apparatus for indirect bonding of orthodontic appliances comprising: a tray having a channel for receiving a patient's dental arch, the channel including an outer labial, gingival edge and an outer lingual, gingival edge; a number of orthodontic appliances detachably connected to the tray, the appliances being located in an occlusal direction from one of the outer edges and along a path in the channel; and an elongated, pliable moisture control structure extending along at least one of the outer edges and spaced from the appliances, wherein the moisture control structure is located in a gingival direction from the at least one of the outer edges, wherein the moisture control structure is configured to directly contact and conform to tooth surfaces as the dental arch is received in the channel to wipe away moisture from the tooth surfaces, and wherein the moisture control structure is configured to conform to gingival tissue in areas adjacent the gingival margin to substantially prevent additional moisture from entering the channel; wherein the moisture control structure comprises an absorbent material; wherein the moisture control structure also includes a flexible film extending over the absorbent material, said film comprising one or more layers and configured to contact tooth surfaces as the dental arch is received in the channel, and wherein said film is permeable to oral fluids.