Heredity can also be the rationale why some individuals have naturally brighter or thicker tooth enamel than others. You could simply be born with teeth that seem extra yellow (or whiter) compared to other folks's teeth, Outericka stated. Part of this has to do with the thickness of your enamel, which is semi-translucent. If you could have thin layer of enamel, the true colour of your naturally yellowish dentin will present through.
These embody meals and drinks containing tannins similar to; coffee, tea, red wines, and curry. The abrasive composition of baking soda is what permits it to be a whitening agent for enamel.
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