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A 31-year-old member asked:

do the inside of tangerine peels whiten teeth like the inside of orange peels?

3 doctor answers4 doctors weighed in
Dr. Rick Kirschner
Dr. Rick Kirschneranswered
General Practice 40 years experience
Supposedly, yes: I've never tried it or known anyone who tried it, but supposedly, yes, tangerines and oranges have this effect in common. Two methods. You can rub the peel on each individual tooth. Or you can dry the tangerine peel and grind it into powder, and then use the mixture of the powder with your toothpaste when you brush your teeth.
Dr. Michael Dolby
Cosmetic Surgery 28 years experience
No: Tangerines are very acidic and placing these on enamel for long periods of time will only damage your enamel! stick to the professional or over the counter whitening that have well documented success!
Dr. Thomas Stelmach
Cosmetic Dentistry 39 years experience
Short term fix: The acids in both peels will dissolve away stain as they are dissolving your tooth enamel. Not a good idea...

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Last updated Jan 5, 2018
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