Causes of blackening:
consult a dentist
Changing color of teeth can also be a sign of some serious problem. For this you should first consult a dentist. If your dentist gives you any suggestion, you should follow it. Along with this, you can also do some home remedies.
Use of fluoridated toothpaste
flossing or interdental brush
If your teeth are changing colour, especially darkening, you can use flossing or interdental brush at least once a day. This will be beneficial for you.
Pay attention to diet
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