Your guardian or guardian angel depending on your beliefs serves in that role as part of their duties if they feel it's warranted.
The tooth fairy is real and she does exist. She comes when you are sleeping, she takes your tooth, gives you money. Parents do NOT trick you and put money under there just for fun. Tooth fairy...
well she is not short and not small. so she might be if you think.
i think that she takes it and makes a castle made of teeth. she needs more and more as the teeth decay! she uses them like bricks.