After a trip to the zoo, Katie wonders how animals clean their teeth. She asks her dental hygienist at her dental appointment. The hygienist, Ms. Malek, can't answer all of Katie's curious questions, but she still makes Katie's trip to the dentist comfortable and fun.

Katie loves her community, and that love is shown in Katie Woo's Neighborhood, an early chapter book series by author Fran Manushkin.