http://www.colgate.com/en/us/oc/oral-health/life-stages/oral-care-age-55-up/article/oral-health-for-seniors
http://abcnews.go.com/Health/john-lennons-molar-fight-oral-cancer/story?id=17627303
http://www.colgate.com/en/us/oc/oral-health/conditions/cancer/article/ada-04-take-heed-april-is-oral-cancer-awareness-month
https://www.sleepassociation.org/patients-general-public/bruxism/
http://www.webmd.com/oral-health/video/is-it-gum-disease
http://www.buzzle.com/articles/tips-for-choosing-the-right-toothpaste-for-your-family.html
http://www.webmd.com/oral-health/teeth-gums-age#1
https://www.youtube.com/watch?v=gWhF0WYG7P4
https://www.youtube.com/watch?v=xdMIfEHArWs