Eli5 why do teeth yellow after whitening

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I’ve had my teeth whitened 6 months ago which turned them completely white, however they begun turning yellow and I’m wondering what causes this and how can I avoid it

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Anonymous 0 Comments

If your drink tea or coffee it’s more important to brush BEFORE drinking. Counter intuitive I know but the fluoride protects from acid and brushing after drinking acidic things weakens your enamel and brushing is more rough on your teeth afterwards.

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