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Tartar build up is a difficult issue to control.
It has been observed that it tends to increase in severity as we age. Once tartar hardens, it must be removed with dental instruments. Preventing the build up is by the formulations that have been proven to decalcify beginning build-ups. Most toothpastes that claim whitening contain titanium dioxide, which is an ingredient found in white paint. This is also used to help whiten teeth, although it is transient in nature.