Variable cross-sectioned orthodontic archwire equipped with integrated hook

Abstract

Disclosed is an archwire with a varied cross section which is formed integrally with a hook. The archwire includes a customized archwire body corresponding to a setup model of patient's teeth, and the hook which is formed integrally with the archwire body. The archwire body is formed in such a way that at least one region has a cross section different from that of other region.

What is claimed is: 
     
         1 . An archwire with a varied cross section which is formed integrally with a hook, the archwire comprising:
 a customized archwire body corresponding to a setup model of patient's teeth; and   the hook which is formed integrally with the archwire body,   wherein the archwire body is formed in such a way that at least one region has a cross section different from that of other region.   
     
     
         2 . The archwire with the varied cross section according to  claim 1 , wherein the hook has a height which is equal to or smaller than that of a slot of a bracket. 
     
     
         3 . The archwire with the varied cross section according to  claim 1 , wherein an inter-bracket region of the archwire body has a cross-sectional area smaller than that of a portion which is ligated to a slot of a bracket. 
     
     
         4 . The archwire with the varied cross section according to  claim 1 , further comprising a loop which is formed within a desired distance from the hook, wherein the loop is formed integrally with the archwire body. 
     
     
         5 . The archwire with the varied cross section according to  claim 4 , wherein the loop, the hook and the archwire are flush with each other by forming a plate, and
 the loop is bent at a desired angle.   
     
     
         6 . The archwire with the varied cross section according to  claim 4 , wherein the archwire body is divided into a posterior wire region and an anterior wire region, and a cross-sectional area of the posterior wire region is larger than that of the anterior wire region. 
     
     
         7 . The archwire with the varied cross section according to  claim 4 , wherein the cross-sectional area of the loop is variably determined corresponding to the setup model of the patient's teeth. 
     
     
         8 . The archwire with the varied cross section according to  claim 4 , further comprising a stop which is provided at a portion ligating to a slot of a bracket to further protrude from the slot, wherein the stop is formed integrally with the archwire body. 
     
     
         9 . The archwire with the varied cross section according to  claim 1 , wherein the archwire is made from Ti6Al4V-ELI material.