Abstract: A multi-purpose orthodontic bracket comprises two interfitting cast parts, a body and a slider, uniquely configured to secure an arch wire to the lingual side of a tooth. The body has an arch wire slot oriented for insertion of an arch wire in a direction normal to the occlusal plane. The slider has a sliding portion slidably received in a channel extending transversely of the arch wire slot in the base of the body, and a closure member having a free end positioned to span the slot when closed. The channel is acutely angled from the depthwise plane or insertion direction of the slot. The closure member of the slider is positioned to move through such plane at an obtuse angle to it so that, during closure, its free end can either push the arch wire down into the slot or clamp it against a shoulder of the body alongside the slot.

Abstract: After securement of brackets of novel design to teeth of a patient to be treated, impression is taken of the mouth. The impression is removed, replicas of brackets are inserted in impression and casting made of teeth which are then separated and positioned in ideal location in a model. Arch wires are then preformed to fit brackets on ideal model and after preforming, arch wire transferred to mouth of patient. Brackets have groove to receive arch wire which is locked in place by follower and snap ring.