Abstract: A uni-twin orthodontic bracket defining a facial surface has a bracket base defining a central bracket section and mesial and distal tie-wing sections and defines a active precision edgewise slot having mesial and distal ends and having parallel slot side surfaces and a slot bottom surface and adapted to receive an edgewise archwire in force transmitting relation therein. A mounting surface is defined by the bracket base and is oriented at a desired torque angle with respect to the facial surface and the parallel slot side surfaces. The mounting surface is adapted to be fixed in relation to the facial surface of a patient's tooth and positions the parallel slot side surfaces at a desired torque angle. The mesial and distal bracket sections define mesial and distal tie-wings and define archwire relief areas establishing clearance with an edgewise archwire.