Picture book written and illustrated by Marc Brown. Little, Brown and Company: New York, 1985.
All of Arthur’s friends have lost at least one tooth, if not more, but not Arthur. He keeps wiggling and wiggling his one loose tooth hoping it will come out. His friends offer to help take it out for him but to no avail. He even visits the dentist, who reassures Arthur that everyone is different, and his tooth will come out soon.