Tow element bracket system for true straight wire orthodontics

Claim 1

A two piece adjustable bracket system for straight wire orthodontic treatment comprised of: (a) a series of bracket support bases individually contoured on one side to permit bonding to each tooth, each bracket support base being of a thickness to establish, with its tooth, a vertical faces which together with the corresponding vertical faces of other bonded bracket support bases creates a symmetrical archform which compensates for the width and contour variations of the teeth to which they are bonded; (b) a series of rectangular working brackets each containing a plurality of archwire slots; (c) a coupling means integral with each bracket support base and with each working bracket rigidly, but detachably, joins a support base to a bracket in a flush fit and having means for attaching said bracket to said support base in any of four angular positions; whereby the following improved treatment procedure may be carried out: a bracket support base having a tooth side contour conforming in both horizontal and vertical direction, and of proper width and height is bonded to each tooth; a working bracket having archwire hodling means particularly suited for the type of orthodontic movement required of that tooth is coupled to the corresponding bracket support base in any chosen one of four possible positions by use of the said coupling means; a flexible archwire is positioned in and held to a desired working bracket to produce simultaneously the desired in-out, up-down, rotation, torque and angulation tooth movements needed to bring all the teeth into the alignment required without the need for archwire bending and rebonding of the bracket support base, while allowing subsequent changes in any of the said tooth movements to be rapidly and conveniently made.