twisted wire around brackets

[MusicIsMyLife]

My ortho put wires (one on each side) that he wrapped around a bracket, braided it, then wrapped around the next bracket. He did this around my premolars on each side of my upper arch. I was wondering what this is for?
You can see it behind my regular wire in this pic:

[johnnys_angel]

I had something very similar to this, and my orthodontist explained (as he was putting it on) that it was pretty much like a powerchain, did the same job, only a wire instead of whatever material they normally use .

[Chris]

I think it creates alittle more pressure for movement just like when they use wire ties instead of o-rings.

[MusicIsMyLife]

Thanks!