The Tooth Family Song from the British Council shows, with text, animation,  and music, why it’s important to brush your teeth.   British Council songs won’t win any Grammy awards, but my students seem to like them and learn vocabulary and sentence structure.  They also, of course, develop their listening skills.

The link is near the bottom of the Health section of my English For Beginners page.

The entire Health section has a pretty impressive (if I say so myself!) collection of health-related links accessible to English Language Learners.