The present application for a patent of a utility model disclosure a constructive disposition applied to self-ligating brackets for orthodontic treatment, which comprises a closed housing (2) on the bracket body (1) for a sliding lock (3), which prevents the bracket lock from slipping from the bracket body at the time of unlocking with a system for fixation of the lock (3) on the bracket (1) by means of a straight groove (4) located on the bracket body (1), or an arc-shaped groove (5), which enables the movement of the said lock (3) by means of turning a specific key (6), providing the opening.
