Patent ID: 9603677
Date: 2017-03-28
CPC Classifications: A61C

Claim:
1. An orthodontic bracket system comprising: a bracket body comprising an archwire slot for receiving an archwire, a bonding base, a pair of first tie wings, and a pair of second tie wings, the archwire slot extending in an archwire slot direction; and a nitinol ligature configured to secure the archwire in the archwire slot, wherein the nitinol ligature forms a rectangular outer shape comprising two overlapping proximal parallel free ends extending in a direction parallel to the archwire slot along a first shape side, and at least one ligature portion extending over the archwire slot, wherein the portion extending over the archwire slot is non-planar, wherein the nitinol ligature does not increase the bracket system's buccolingual dimension, and wherein the two overlapping proximal parallel free ends are each free to move relative one another in a direction perpendicular to the archwire slot direction and are positioned between one of the pair of first tie wings and the bonding base.