O.o it is just a compound for an skeleton iron sword?
You can compound: Iron Net Boots + Wolf Tooth + Iron Net Boots, without problem.

It doesn't need to be a Dragon Tooth. But I agreed that raptors do drop a Dragon Tooth. But it is not easy to get, because you need kill about 20 raptors to get 1 Dragon Tooth, or 2 if you are combo with your pet.