Humm that would be creepy (the landfill) Maybe he or she eats them. Or builds a tooth fairy city out of them. It wouldn’t be its nature for something to take teeth or objects with out a purpose right?
I seem to remember one of my favorite children’s books was a Tooth Fairy book. If I remember right, the Tooth Fairy does have a town that’s built out of teeth. But…it was done in a cute style, rather than a creepy style.