Ok my cousin whos 12 wants to whiten her teeth with arm and hammer bakeing soda. What i want to know before she does it is, is it safe. I heard it can take the enamel of your teeth. I mean i don't want that to happen so i want to know before she does it and something happens.
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well, I am a final year dental student at the moment, and I would say that your cousin should be using a fluoride based over the counter toothpaste, as anything more abrasive is likely to rub away the enamel over time and will lead to sensitivity and discolouration as the softer dentine shines through. At 12, her second molar teeth should be erupting, and so what is important isnt really what she brushes with- it is that she brushes 2x daily for long enough and with good technique to keep her gums and teeth clean. In response to the previous answer DONT, just dont use BLEACH in your mouth. Especially not at this age. It can seriously damage gums, mouths, and also can go through the tooth into the nerve. At 12 she can stop or avoid doing the bad habits that discolour teeth- smoking, tea/coffee/ wine and get into good habits of cleaning.. and so will not need to whiten.
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