Did you know that if you use Teflon pans in a house with pet birds they might die from the fumes? Since we historically used canaries to detect dangerous gasses in coal mines, might we take that as an indication that Teflon pans should not be used at all?
The scratched ones are bad and should not be used. Going forward you should ditch all your nonstick pans and buy cast iron or stainless steel.