Abstract: An orthodontic archwire includes an anterior region, bicuspids regions and posterior regions. The archwire exhibits substantially constant unloading force in at least one of the anterior region, bicuspids regions and posterior regions, having a variation of unloading force of less than 15 gf during unloading from about 2 mm to about 0.6 mm deflection. A set of orthodontic archwires can have the property that the anterior region of a first archwire has substantially the same clinical working force as the anterior region of a second archwire, the bicuspids regions of the first archwire has substantially the same clinical working force as the bicuspids regions of the second archwire, and the posterior regions of the first archwire has substantially the same clinical working force as the posterior regions of the second archwire.

Abstract: An orthodontic archwire includes an anterior region, bicuspids regions and posterior regions. The archwire exhibits substantially constant unloading force in at least one of the anterior region, bicuspids regions and posterior regions, having a variation of unloading force of less than 15 gf during unloading from about 2 mm to about 0.6 mm deflection. A set of orthodontic archwires can have the property that the anterior region of a first archwire has substantially the same clinical working force as the anterior region of a second archwire, the bicuspids regions of the first archwire has substantially the same clinical working force as the bicuspids regions of the second archwire, and the posterior regions of the first archwire has substantially the same clinical working force as the posterior regions of the second archwire.

Abstract: An archwire is comprised of an elongated wire of nickel/titanium alloy in a generally arcuate configuration and a pair of tubular metallic sleeves in spaced apart relationship at predetermined points along the length of the wire. The sleeves are crimped onto the wire, and an upstanding metallic post is bonded on each of the sleeves. The posts are seated in the crimped area of the archwire and are secured thereto by brazing. The crimp formation is then heat set.