Odontarrupophobia

Odontarrupophobia (from Odonto-, "teeth/tooth" and from Greek: arrupos, "cleaning/cleanse") is a fear of toothbrushes or the cleaning of teeth.

This disorder dates back to 1969, when the earliest recorded human of having Odontarrupophobia, Bob Nofacerwitsen, tried to publish a book informing people about the "great sinister evil" of toothbrushes and how you can help get rid of them forever.