I recently realized that all my whitnening toothpastes (was using Total with Whitening) have been making my teeth worse. I have some translucent spots, and the bleaching agents were making those spots even more translucent and uneven. So after my friend pointed out my spots were worse since he met me, I did some research and switched to an enamel restoring toothpaste by Arm & Hammer:http://www.drugstore.com/products/pr...59&catid=15481
I also considered Pronamel. But I have to say, after only a few days of the switch and my teeth feel way cleaner and look more even. The baking soda is also supposed to help neutralize acid from juices and soda that would contribute to enamel degradation, I don't drink those too much though. Not sure how much faith there is to this whole Liquid Calcium thing, but my teeth look better so I recommend it to anyone with similar translucent problems in their teeth.