So remember when I talked about using Crest's 3D White Toothpaste? Well, I can't honestly say I'm a fan. I know I was supposed to use it for 90 days straight, but 90 days is quite a while from now and I wasn't really seeing any slight improvements. In fact, my teeth looked a yellowy-white that I did not like. May be my teeth don't like Crest? All I know is I am going back to what I KNOW works, and that's Arm & Hammer. I even bought the A&H Spinbrush for extra teeth cleaning.