either take them to a shop or if you don't want to pay (some shops don't charge for minor things like that, but some do) you can take the break off and put it in a vise and bend it back that way. Most breaks it's just one screw to take it off (unless you have turntables - in which case, just go to a shop it will be WAY easier). The screw is usually located on in the middle on the heel piece right behind (or in front of) the break.
~WAKIN' UP THE NEIGHBORHOOD TONIGHT!~
~I could carve off a jump so hard I'd come in forward and take off of it switch~