Any good toothpaste will include other components to make it more effective. Fluoride is the most important one. In fact, it’s the primary reason tooth decay and cavities have declined dramatically over the past 50 years. This naturally occurring mineral protects your teeth when you eat. Every food you consume leaves trace elements of sugar and starch on your teeth.
Fluoride counters this problem in two ways. It strengthens tooth enamel, the protective layer on the outside of your teeth, and that added strength makes your teeth less susceptible to chipping and cracking.
When you consume items that stain your teeth such as coffee, cigarettes, wine, tea, and sugary drinks, the enamel weakens. Fluoride counters this issue, although you should still brush your teeth more often if you smoke or consume any of those products. Fluoride also fights off previous damage by reversing the process of tooth decay. For these two reasons, when you shop for toothpaste, you should pick one with fluoride.
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