Foods That Stain Your Teeth
Most people want to have white teeth. After all, nothing is more embarrassing than smiling in front of someone or a camera with teeth as dark as charcoal. That's quite exaggerated, but you get the idea. If you don't believe that many people want white teeth, it s worth knowing that the teeth whitening industry generates over £10 billion a year. That's a lot of money spent on trying to get a set of teeth white.…
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