Alien is part of our toothbrush buddy family of MyTeeth.

Alien is not from Earth

She didn't have to brush her teeth on her planet because they eat smutmunkel. Smutmunkel is a thick gritty grain that humans would find terribly yucky, but everyone likes eating it on Alien’s home planet. And smutmunkel doesn't damage teeth at all. When Alien came to Earth, she couldn’t find any smutmunkel to eat and soon had to learn all about teeth brushing. She could not understand why she should put a strange long toothbrush with white stuff into her mouth. Thankfully, her toothbrush friends explained everything to her. Now she stands happily in front of the mirror after every meal and brushes her teeth.