Junie B Jones Toothless Wonder, Book 20 by Barbara Park

In the 20th Junie B. Jones book, one of Junie B.'s top front teeth is loose! Only Junie B. is not that thrilled about this development.

Because what if she looks like toothless Uncle Lou? And even worse . . . what's all this tooth fairy business? Like, who is this woman, really? And what does she do with all those used teeth? So many questions, so little time.