The Value of a Smile (American Dental Association, 194?)
Good dental health is stressed in the story of two grade-school children who must prepare a report on oral hygiene. They go to visit a children's dentist. The dentist is busy cleaning a girl's teeth, then showing her her yearly mouth X-rays. The female dental assistant shows the two students a book about teeth containing pictures of second teeth forming behind the deciduous teeth. The assistant takes the children to see an orthodontist where they are shown drawings and casts of teeth from birth to teenage.