An object of the present invention is to provide an orthodontic bracket that is capable of performing a more effective three-dimensional motion and particularly an effective motion on the tooth surface.The present invention is characterized by an orthodontic bracket which comprises a substrate surface that is bonded to the tooth surface and an arch wire retaining portion that is configured to retain an arch wire with the substrate surface as a bottom surface, the orthodontic bracket being connected by the arch wire and continuously applying a stress to individual teeth to thereby straighten a row of teeth, wherein the orthodontic bracket is in an approximately hog-backed cross-sectional shape that is orthogonal to the direction in which the arch wire is stretched with the substrate surface bonded to the tooth surface as the bottom surface, and is provided with a plurality of arch wire through holes respectively for inserting the arch wire into the holes and connecting adjacent orthodontic brackets by the arch wire.
