Strangely weird but fascinating video of how your toothbrush wears out


Watch exactly how and why your toothbrush wears out.

Using an array of microscopes, the guys at Applied Science show how toothpaste, an abrasive substance, strips down and smooths the bristles of your brush – making it pretty useless for removing plaque.

Then again, if you’re wanting that fresh feeling, the 10 billion microbes on the toothbrush probably don’t help too much either.

There’s a lot of science in this video but it’s oddly fascinating. And there’s a lot of silver coating and stripping going on. This guy is genius. You’re going to know a lot more about bristles, plaque and abrasive force than you ever thought you needed!