Worm Tooth

Worm Tooth is a crafting material dropped by Devourers in The Corruption. It appears to be the tooth of the Devourers. Unlike most Corruption items it does not have a Crimson equivalent. However, in Hardmode, when the Dryad is in the Graveyard biome she sells the seeds of the world evil opposite of the current world evil (i.e. Corrupt Seeds in a Crimson world and Crimson Seeds in a Corrupt world). This means the player can create an artificial Corrupt biome in a Crimson world and therefore allow Devourers to spawn and drop Worm Teeth.

History
Dent de ver Presa de Verme 蠕虫毒牙