The white wolf tooth is a crafting material that sometimes drops from the white wolf. It can be sold to Lysis, along with a wolf pelt, to make an amulet of attack. Five white wolf teeth and five white wolf pelts can be sold to Darklow to make a spiked glove.
Lysis pays 60 gold for the tooth and Darklow buys it for 48, but some players may pay a much greater amount due to its usefulness for making endgame gear.