No hot water coming out of any of my faucets after a burst pipe?

I had a burst pipe the other night on the pipes for my kitchen sink. Right before this happened, all the hot water in the house was working fine except in the kitchen sink where the pipes were frozen. Then the pipes burst, so I shut off the water and my neighbor helped me fix the broken pipes. Now the water is back on and the cold water works fine, but nothing comes out of the hot water in any of the faucets. I don't think there is any chance that some other pipe got frozen since the weather warmed-up, is there something that I'm missing that should have been done?