Heredity can also be the explanation why some individuals have naturally brighter or thicker tooth enamel than others. You could simply be born with teeth that seem more yellow (or whiter) in comparison with different individuals's tooth, Outericka said. Part of this has to do with the thickness of your enamel, which is semi-translucent. If you have thin layer of enamel, the true color of your naturally yellowish dentin will present via.
These include meals and drinks containing tannins similar to; espresso, tea, purple wines, and curry. The abrasive composition of baking soda is what permits it to be a whitening agent for teeth.
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