Keep your gums healthy by drinking coffee!
http://www.dailymail.co.uk/sciencetech/article-2732165/Drinking-coffee-help-teeth-Researchers-say-cup-Joe-ward-gum-disease.html

http://www.dailymail.co.uk/sciencetech/article-2732165/Drinking-coffee-help-teeth-Researchers-say-cup-Joe-ward-gum-disease.html