Hi All,
I have used hydrogen peroxide, for several decades at night, as a toothpaste, so your linked article, K2C, certainly caught me eye. However, the "over-the-counter" hydrogen peroxide that is normally purchased is only 3% hydrogen peroxide. Note these quotes from the article:
"Taking into account that over-the-counter hydrogen peroxide concentrations can be as high as the formulas used by dentists in bleaching sessions (20-30%) and the growing popularity of hydrogen peroxide as an alternative therapy, the danger of potential long-term teeth damage by using high concentrations of hydrogen peroxide as a casual mouthwash are unknown, underestimated and largely under-discussed."
And, "Odontoblasts, are directly damaged or show a significant decrease in their metabolic activity as a result of the bleaching sessions using 35% hydrogen peroxide gel."
And, "The authors tested 35% and 20% concentrations of hydrogen peroxide and report that the 35% hydrogen peroxide diffused faster into the pulp chamber than the 20% hydrogen peroxide bleaching gel.
"It is speculated that lower concentrations of hydrogen peroxide may have significantly less toxic effects on dental pulp cells..."
Frankly, at 3%, I'm just not concerned [although it never hurts to examine different viewpoints]. I do believe the article was specifically cautioning against the [much more highly concentrated] teeth whitening concentrations, even though it did mention using it daily as a "mouthwash."
Thanks for posting, K2C,
David
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