Elastic piece type self-ligating bracket

The utility model relates to the field of orthodontics, in particular to an elastic piece type self-ligating bracket, which comprises a base plate, a bracket body, an elastic piece body with a trapezoidal bottom surface and a movable locking plate, an arch wire groove is arranged on the bracket body, a first working wing and a second working wing are respectively arranged on two sides of the arch wire groove, a sliding groove is arranged on the second working wing, and the movable locking plate is arranged on the first working wing. An elastic piece mounting hole penetrating through the bracket body is formed in the groove bottom surface of the sliding groove, and a non-through sinking table body parallel to the sliding groove is arranged at the end, close to the groove bottom surface, of the elastic piece mounting hole. According to the elastic piece type self-ligating bracket, one end, far away from the arch wire groove, of each of the first working wing and the second working wing has a certain bending rad