When we're sick, our bodies are loaded with germs. But what many people don’t realize is that those germs often end up on one of the most-used items in our daily routine: the toothbrush.
So the question is, should you replace your toothbrush after being sick — or does your body build up enough immunity to fight off lingering bacteria?
Dr. Kile Sherry with Reef Family & Cosmetic Dentistry in Cape Coral says it’s best not to take any chances.
"There are antibodies in your body, obviously, and there's a bunch of different thoughts on that," Sherry said. "But I personally think that when your sickness ends and that wraps up, it’s time to move on to a new toothbrush."
Beyond timing, Sherry says, where you store your toothbrush is just as important. Many people leave theirs on the bathroom counter, often within a few feet of the toilet. That, he says, is a big mistake.
"As the toilet flushes, there's some moisture that comes back up into the air and travels toward your toothbrush," Sherry said. "You don’t want that in your mouth."
And while toothbrush caps may seem like a smart way to protect your brush from germs, they may actually do more harm than good.
"I’m not a huge fan of those. We want your toothbrush very dry," he said. "It’s like a petri dish — you’re creating an environment that already has bacteria, and it’s growing and growing. So definitely avoid that."
The American Dental Association recommends replacing your toothbrush every three to four months, but after an illness, sooner is better.
"Switching it — I think a lot of people are unsure about that," Sherry said. "Any time after you’re sick, it’s recommended to switch to a new one."
As for daily storage, Sherry says there’s no need to overthink it — but it’s important to keep it simple and sanitary.
"I don’t know if we can be hair-drying our toothbrushes realistically," he said. "But putting them in a container or holder — away from toilets and super moist places — and just making sure they air dry, I think, is sufficient."
In short: after you recover from your next illness, don’t just restock the medicine cabinet. Restock your toothbrush, too.
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