An orthodontic bracket including a body including a bonding base for attachment to a tooth, at least one gingival tie wing and at least one occlusal tie wing the at least one gingival tie wing and the at least one occlusal tie wing projecting from a labial surface of the body an archwire slot extending mesiodistally across the body and between the at least one gingival and occlusal tie wings at opposed mesial and distal sides of the body to accommodate an archwire and a locking shutter moveable between an open position in which placement and removal of the archwire is facilitated and a closed position in which placement and removal of the archwire is inhibited. The locking shutter includes a main shutter portion which substantially covers the archwire slot when the locking shutter is in the closed position and an extension member extending beyond an outer edge of the body to contact a portion of the archwire outside of the archwire slot.