Disclosed is a bracket including a base plate on which two retaining wings are formed running parallel to one another and defining an intermediate space in which a wire arch may be held. The intermediate space has a trapezoidal structure such that the wire arch is always pushed upward under the elasticity of the bracket by the inclined retaining wings toward the retaining surfaces, such that the wire arch is held in the intermediate space in an aligned fashion without play. The cross sectional shape of the wire arch is selected such that no surface contact occurs in the intermediate space.