
Stains on front teeth
These discolorations seem to have shown up gradually sometime in the past year. I only started noticing them about a month ago. I floss daily and brush with prescription fluoride toothpaste twice a day. I don't drink coffee or soda, only water and tea, and occasionally wine or whiskey. Any idea what is causing them, and how to get rid of them?
I tried a couple of whitening strips this week but haven't noticed a difference, and I don't want to push it too far if it's just going to end up whitening the tooth but not the discolored part.
35M, no notable medical conditions. Allegra taken daily.