I have recently switched to crest pro health toothpaste, and I doubt whether it would keep my teeth from white staining. I was using Aqua fresh until recently, when I switched to crest pro health. I have also used its mouthwash, but that was about 5 months ago, and I stopped using it, when I noticed color change in my teeth to brown. I verified this out with the storekeeper, and he confirmed that the toothpaste was far different from the mouthwash. Moreover, there is a slime kind of feeling when I brush my teeth with it. I wanted to know whether it is normal, or should I change the toothpaste immediately! Please advice appropriately! Thanks.