Tough Tannins
“Staining on the teeth is caused by chemicals called tannins. Not only do they cause discoloration and visible staining, but the acid damage can also lead to cavities. In addition to foods and drinks, tannins are also found in cigarettes and vapes, so avoiding these is one of the best ways to prevent stains.”
Joe Kravitz, Rockville, MD Cosmetic Dentist