Why all the angst against coffee? This series of and a couple in the past would make one believe so. Be careful, or we'll send Juan Valdez and his trusty donkey to come stomp you! ;-)

Seriously, I am a fairly heavy coffee drinker and have normally white teeth. I BRUSH them three times daily. That seems to do the trick.

They have ads in Ireland now that have dentists saying, "Everyone eats and drinks healthily now and that's great, but did you know fruit juice can turn your teeth into a translucent glass-like substance?... Well... It can. News to us too. Buy this anti-translucent toothpaste!"