A self-ligating orthodontic bracket for ligating an archwire includes a bracket body defining an archwire slot configured to receive the archwire, a movable member movable relative to the archwire slot, and an actuator coupled to at least one of the bracket body and the movable member. The actuator includes a ferromagnetic shape memory alloy and is configured to move the movable member when exposed to a magnetic field. A method of orthodontic treatment using a self-ligating orthodontic bracket having an archwire slot configured to receive an archwire therein and including a ferromagnetic shape memory includes exposing at least a portion of the orthodontic bracket to a magnetic field such that the ferromagnetic shape memory alloy at least partially transforms to a martensitic phase from an austenitic phase, and at least one of inserting an archwire into the archwire slot and removing an archwire from the archwire slot.
