You may not be aware of any controversy surrounding the use of flouride in toothpastes, and in public drinking water.
Even so, it is a very important issue to understand as the debate and controversy surrounding Flouride has been raging since the very beginning of its industrial use. It has been linked with many types of cancer and other diseases in the body due to its highly toxic nature. Prominent scientists and doctors have spoken out against the use of flouride right from the beginning, but the industrial steam roller has completely ignored their findings as it would not be profitable or convenient to do so.
I would urge you to watch this video to learn more about the history of the issue and the vast amounts of misinformation and spin that have been perpetuated by the fluoride industry.
Most people now (except the well informed) believe that fluoride is the wonder substance that prevents tooth decay, and that those who say anything different are quacks and scare-mongers...well of course! That's what we have been taught to believe! So get ready to finally hear the other side of the story...it may shock you to learn of all the solid research and evidence against the use of fluoride!
My advice would be to avoid using fluoridated toothpastes as you certainly don't need any more than you are already exposed to. And if you already have greying mottley teeth from fluorosis, then that is a sign you have absorbed it too much and may have problems with fluoride toxicity. In that case, it would be best to do a special de-tox program to enable your body to expel the fluoride to help re-establish healthy bones and teeth.