How long ago did you take the advil? Give it time to work and try to relax.
I was going to say there's not much you can do for that type of pain..you're not talking about sores from the wires right?
But I just googled and here's what I came up with. No idea if it works but..http://www.ehow.com/how_4758933_reduce-pain-braces.html
Feel better Katie...tooth/mouth pain bites
In the future remember to take advil BEFORE you go for tightening etc. It works better if you don't wait til the pain is really bad.