The objective of this clinical study is to assess the efficacy of New Toothpaste Containing SnF as compared to commercially available toothpaste in the reduction of enamel erosion over a ten (10) days period. This investigation will be a randomized, double-blinded, single-center, parallel clinical study. Subjects will be randomly assigned to one of the two study groups, and will be instructed to use their assigned toothpaste for a period of ten (10) days.