Here's How Often You Should Change Your Toothbrush — and What Can Happen If You Don't, According to a Dentist at UCLA
You should replace your toothbrush at least every three months, according to Kelman. But for some, especially people who brush their teeth a bit aggressively, you'll need a new one even sooner, she adds.
"When in doubt, you need to look at the bristles," says Kelman. If the bristles are frayed, it's time for a new toothbrush, she says. It's also important for your health and the health of the people you live with to get a new toothbrush after recovering from a sickness like a cold or the flu, Kelman notes.Using a toothbrush with frayed bristles can have multiple consequences, including:Allowing germs to build up and spread within your mouth
"If [toothbrushes are] not in that significant shape, they're going to lose their effectiveness," says Kelman. And the teeth cleaners are in their best shape when they're brand new, and in their worst condition when their bristles are frayed, she says.
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