2min2x.org   - Brush your teeth for two minutes twice a day!  Even though this applies to everyone, this website is tailored to children watching a 2 minute video while they brush. 

www.mouthhealthy.org has all the information you need to keep healthy mouth.  Learn about prevention, dental health topics, and so much more! 

Toothwisdom.org has a multitude of health resources for older adults including dental care.