Patent ID: 8366440

Claim:
An orthodontic bracket comprising: (a) A base adapted to be affixed to the surface of a patient's tooth, (b) An archwire receiving member mounted on said base, said member having interior wall segments, said segments intersecting so as to form corners and a central archwire slot, (c) An axle coupling said archwire receiving member to said base so as to permit said archwire receiving member to rotate with respect to said base, said axle having a distal end insertable into said base, a radial bearing portion engaging said archwire receiving member, and a head portion having a polygonal or non-circular shape, and, (d) A selectively removable locking member adapted to fit snugly inside said archwire receiving member and having exterior wall segments conforming to the shape of said interior wall segments and further including an aperture shaped for engaging said head portion so as to lock said archwire receiving member in place to prevent rotation thereof.