V-bend was used for uprighting the roots of the  tooth(這是v-bend的作用)
 

 

1.Connecticut Intrusion Arch(CIA)

 

2.bendistal pliers

 

 3.Sectional Wire for Jasper Jumper Round Wire For Double Buccal Tubes

 

4.virginia大學有關archwire上彎制v bend的研究(裡頭有bracket與在archwire上彎制v bend的效果研究)

 

5.forestadent的molar spring

 

6.wire & brackets relationship

 

7.gable bend

 

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