![]() ![]() But that biofilm will start building up on the brush head as well." "And so you're trying to break that up physically and remove it with your with your brush. Over time, bacteria will build up in your mouth and create a sticky layer around your teeth called a biofilm, Tamir says. and so they become just a lot less effective, they're not as firm, so they become a lot less effective at just removing plaque and buildup on the teeth," Tamir says.īut it's not just that, there's also a bacterial factor. ![]() "Essentially, the bristles themselves will get worn out, they'll get bent. The simple truth is, if you're using an old toothbrush, you simply won't get as much out of a brushing session as you should. Why is it important to replace your toothbrush? "As you use it, they bend, they flare out and there's more space between the bristles." When you start to notice that happening, that's a good sign that it's time to replace it.Įlectric toothbrush heads tend to get worn out faster, Tamir adds, so you might notice that they need to be replaced more often. Lior Tamir, a dentist in Silicon Valley, California. "When you get a new brush head, if you look at it, the bristles are all really tightly packaged together, they're really close to each other," explains Dr. One way to tell if your toothbrush or electric brush head needs to be swapped out is to look at the bristles. Richard Lipari, a dentist in Chappaqua, New York. "I usually recommend my patients change them a little bit sooner than that, around the two-month mark," says Dr. How often should you replace your toothbrush?Īll three experts we spoke to agreed that a good rule to follow is to replace your toothbrush every three months. After all, can you remember the last time that you replaced yours? So we asked the experts how often you really need to replace your toothbrush and why it's so important that you do it in the first place. Michael Wei, a cosmetic dentist in New York City.īut, most people don't do it often enough, he says. "It is so important to replace your toothbrush head to maintain good oral health," says Dr. That's why experts recommend replacing it pretty regularly.
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