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Rinsing Toothbrush in Listerine

Posted Jun 02 2010 12:00am
Hi, Ellie-

When you say that you can just swish the toothbrush in a couple of drops of Listerine, do you mean in a small amount of water with a few drops of Listerine mixed in?

I've been pouring Listerine into a 3 0z. Dixie cup to disinfect the toothbrush, but if using just a few drops in water would have the same effect, it'd be more economical. Your thoughts?

Thanks a lot.


Hi L,
I don't have a way to PROVE the best way to clean your brush - but there are some scientific facts that guide this reply
1. Bacteria hate to be dry - it kills them!
So whatever you do - make sure your toothbrush is able to dry out between uses.

2. Listerine (not diluted) and bleach (diluted) were compared in a side by side study - and the study found that both liquids clean toothbrushes equally well.
The heads of the brushes were swished in the liquid disinfectants and then rinsed off - the EM photographs were similar - and showed bacterially clean brushes.
This is why I recommend this technique to others.

3. I don't know what happens as you dilute the Listerine or keep re-using it.
I would imagine that it may be OK to dilute a little bit - or use less - maybe you could spray your brush with a mist of Listerine and then rinse out.

I am more careful about cleaning my brush when I am sharing a sink or in a hotel bathroom.
At home, I have to admit that I use less Listerine to swish it in each day - but in a hotel I immerse it for several minutes!!

Hope this helps,
26 Corporate Woods
Rochester, NY 14623
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