On this page, The American Dental Association describes why we should clean our teeth, as well as how to do it. Watch the video to see how you should be brushing.
This site has animations that cover a variety of topics from simple tooth brushing and use of dental floss to gum disease, dental implants, wisdom teeth, veneers, fillings and more.
This site not only talks about tooth care, but also give you some history about dental care. At the bottom of the article, there are links to more information and videos.
This video (for secondary students) describes what would happen if you stopped brushing your teeth. Learn about plaque, bacteria, tartar, gingivitis and other unhealthy mouth conditions.