Tooth Fairy Dentist is an online game at 43g.Com. You can play Tooth Fairy Dentist in your browser for free.When children lose their baby teeth, if they place them under their pillow the tooth fairy pays them a visit and replace them with a small reward. But I'm sure you already know that. In a way we can say that the tooth fairy is the guardian of healthy teeth. Still, from time to time, she needs some help herself with maintaining a perfect smile.