by senon » Wed Jul 14, 2010 2:22 am
Toothpastes don't actually whiten your tooth. It is the act of brushing that removes surface stains that makes them appear whiter. Toothpaste is not even needed to do this. Getting a coronal polish from a dental hygienist also helps to remove these stains. Intrinsic stains are harder to get rid of. Bleaching is an option for this and actually turns even stainless teeth relatively whiter, though it can cause sensitivity.