Oxen Bone

Is there a problem in this sentence?

It is a (little-known) fact that ivory, as well as hippopotamus teeth and ox bone, (were used) (during) the eighteenth century (to make) artificial teeth. (No error).

I don’t think so but go get super wasted then read it you’ll be like what the f@$& happens to this!?!?!??

Ox bone soup (Seolleongtang)