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A 24-year-old female asked:

I have opident teeth whitening gel 20% if excess comes out of tray and swallowed or goes on mouth tissue what will happen? dangerous?

5 doctor answers9 doctors weighed in
Dr. Gary Sandler
Dentistry 55 years experience
Opident: I'm not familiar with 'opident' tooth whitening gel per se. In general, slight oozing of excess tooth whitening gels may irritate the gums somewhat but is not generally a problem. One of the problems with ordering products such as these online is that you may not have someone who you can trust to answer your questions or know about product safety. Bargains always aren't bargains.
Dr. Sandra Eleczko
Dentistry 37 years experience
Can cause burning: 20% bleaching gel can cause burning of you gum tissue if you do not remove the excess around the tray. Not familiar with the brand you are using so i don't know if there is anything else that can cause problems.
Dr. Robert Tang
General Practice 39 years experience
Safety of whitening: Not dangerous, you should not have a lot of excess either.
Dr. Mike Deldar
Cosmetic Dentistry 25 years experience
No: You will be okay drink lots of water.
Dr. Michael Dolby
Cosmetic Surgery 29 years experience
You will be fine: After you place your trays, use your finger to wipe out the excess gel and discard. If you happen to swallow a little it won't hurt you. Make sure you are not overfilling your trays, a little goes a long ways.
Dr. Colin Smith
Dr. Colin Smith commented
undefined 31 years experience
I like to use a tooth brush to wipe the excess away. Short term exposure won't be problem.
Sep 3, 2013

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