Open Wide — Nancy Krulik

Katie is an ordinary fourth-grader -- except for one very extraordinary problem!

Katie doesn't like going to the dentist -- who does? But she certainly never meant to scare
Emma W.'s little brother so badly that he refuses to go for his first checkup at Dr. Fang's...er--that's Dr. Sang's. Then, in less time than it takes to say "open wide," Katie turns into the dentist! Now she has to deal with a terrified six-year-old, one who has yucky stuff stuck in his teeth!