Jake (Chicago, IL) on 12/27/2008

Warning
I want to warn everyone against using hydrogen peroxide orally. I brushed my teeth more than 6 months with it and wound up with 11 deep cavities that nearly cost me several teeth - I don't believe in root canals for the health disadvantages. I went on line and was shocked to read of a study that suggested the h2o2 penetrated the tooth enamel. Wish I'd read the study earlier. Yes, the h2o2 kills germs, but apparently there's no end of germs available in the mouth and they apparently are transported into the teeth where they grow cavities. My son who followed me in this misguided endeavor, whose gums are not receded as mine are, and who never gets cavities, had two cavities at this time as well. A word to the wise is sufficient.