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We used to gargle water mixed with potassium permanganate as children after cleaning our teeth to see if we did a good enough job. It would colour plaque pink,
by Bockit 10y ago
We used to gargle water mixed with potassium permanganate as children after cleaning our teeth to see if we did a good enough job. It would colour plaque pink, so it was very obvious if you hadn't cleaned properly!
- huhtenberg 10y agoA shot of its stronger solution was also routinely used as an anti-diarrhea remedy back when I was a kid. Tasted awful.