Have you ever tried the guatapanal mouthwash you can get in pharmacies? That will whiten your teeth a couple shades. Wish I could get it in the states. Suppose to prevent gum disease as well. Very strong stuff.
You've been using this for awhile, how has it been working for you..........
http://dr1.com/forums/living/104735-better-dominican-products.html
Post #2...........
B in Santiago