You can tell the condition of the cutters by looking at them. You
either dulled them, or caused their tops to be snapped off. (Could
have damaged side-links, too.) Inspect carefully.
Now you know how much the worst cutter would have to be filed/ground
back to cut again.
If it's a lot, you might want to have a shop do it, with grinder. Just
so they don't overheat and distemper the steel. Then check the
depth-gauges- they'll probably have to be filed down some.
Even if most of the cutters are ground away, that chain is good to have
around, for when you have to cut some dirty wood. Much better than
using new chain.
Do not use rat-tail file- must be constant diameter, like 5/32" or
7/32"; generally labeled as "chainsaw filexs." (Sorry, Turtle.)