Abstract: An orthodontic appliance and method is described for the correction of malocclusions of teeth. Light, continuous force, with torque being absent, is applied to the dental arch. Round arch wires are secured within brackets having symmetrically and continuously curved grooves. Under the influence of elastomerically applied force, the arch wire guides the teeth into a pre-selected alignment with no torquing forces being necessary.

Abstract: Dental appliances such as orthodontic apparatus in the form of a coated metal having characteristics including aesthetic appearance highlighted by tooth coloring, resistance to abrasion, low friction, weldability, stability at high temperatures and attachability to dental adhesives. A base metallic material is covered by a coating including a para-oxybenzoyl homopolyester and polytetrafluoroethylene and a pigment for providing the tooth coloring.