Tell Me How Career Series - Career Education and Opportunities for Young People. Recommended for both School, Public Libraries and Guidance Offices. The Tell Me How series is a necessary addition to any library, guidance center of school curriculum. It explores a large number of career opportunities for young people and features real people doing real jobs. In this program host Melody Young gets a check-up with a modern-day dentist who performs magic. Subjects Covered Include: How long do you have to go to school to be a dentist? What makes a good dentist? What does a dental hygienist do? Is a dentist a doctor? What is a cavity? What is a filling? How are cavities formed? Do dentists make false teeth? What courses in school will prepare you for becoming a dentist? What other careers are related to dentistry? Can girls become dentists?