Patent ID: 8485817

Claim:
An orthodontic system, comprising a U-shaped metal wire configured to be installed on a plurality of orthodontic brackets cemented to a row of teeth, the U-shaped wire having first and second elongated sections connected by a curved section, with the first and second elongated section having a first end and a second end, respectively, opposite from the curved section, wherein said U-shaped metal wire has a middle point located at the middle between said first and second ends, wherein a horizontal plane is defined along the longitudinal length of the U-shaped wire, wherein said middle point being located on said horizontal plane, and wherein the first end is located at a vertical height lower than the horizontal plane while the second end is located at another vertical height higher than the horizontal plane when the U-shaped wire is in its preformed uninstalled configuration, wherein after the U-shaped metal wire is installed on the plural orthodontic brackets cemented to the row of teeth, the first and second ends of the U-shaped metal wire are pressed vertically toward the horizontal plane so as to generate a resilient restoring force for both pushing and pulling the row of teeth on an upper jaw or a lower jaw and thereby adjusting the teeth from an inclined alignment to a horizontal alignment.