Abstract: A self-ligating orthodontic bracket for installation on a tooth includes a bracket body defining an archwire slot, the bracket body including a lingual surface configured to be mounted on a tooth. One or more posts extend outward from a first surface of the bracket body, and a ligating member is moveable along the first surface between a first, open position which allows access to the archwire slot, and a second, closed position which restricts access to the archwire slot. The ligating member includes projections to contact the one or more posts and maintain the ligating member in at least one of the open position, closed position, and a transition movement between the open position and the closed position.