A single reason for needing to whiten teeth is smoking cigarettes. Nicotine stains teeth with time and results in teeth to become dark and uninteresting. Some of the natural toothpaste remedies in this post might help clear away yellow cigarette stains from teeth. Swish with h2o right after foods. https://bookmarkdistrict.com/story16890156/the-smart-trick-of-natural-teeth-whitening-home-remedies-that-nobody-is-discussing