Provided are orthodontic appliances including a bonding base, a body extending outwardly from the base and an elongated slot extending along the body in a generally mesial-distal direction, and first and second protrusions disposed on the body on opposite sides of the slot. A clip is slidably engaged to the body and movable between open and closed positions. When operating the clip, the first protrusion extends into the clip to retain the clip to the body in an interference fit while the second protrusion extends into the clip when in its closed position. Optionally, the clip comprises at least one deflectable portion aligned along a reference plane extending over the slot, where the deflectable portion resiliently bends out of the reference plane to traverse the second protrusion as the clip moves between open and closed positions.
