You can straighten the pivot with smooth jaw pliers that have the front edge rounded to match the curve of the pivot, or do the same with some tweezers. If the pivot isn't badly bent it usually won't break (not being the straight variety). It will need polished afterwards, to remove possible flat marks left from the tool. I think Fried covers this in one of his books, but I can't recall which, it may be in "Bench Practices for Watch and Clock Makers". I have a pair of modified fly-tying pliers for the few times I need to do this.