11 Gross Things That Could Be On Your Toothbrush

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iStock

Before you brush today, consider this: Poop is just the beginning of what could possibly be hanging out on your toothbrush.

1. E. COLI

Guess what? If your bathroom has the sink and toilet in one room, and you flush with the lid open, there is fecal matter on everything within a 5 to 6 foot radius. Flushing aerosolizes your poop, depositing bacteria like Escherichia coli, or E. coli, directly onto your toothbrush—and brushing with an E. coli-loaded instrument could make you sick. “This bacteria is associated with gastrointestinal disease,” says Dr. Maria Geisinger, DDS, an assistant professor and periodontist at the University of Alabama at Birmingham.

Gastroenteritis, or infectious diarrhea, is one such illness. “In bathrooms with a toilet attached, [researchers] looked at toothbrushes in normal use between one and three months,” Geisinger says. “At the three-month mark, they found E. coli colonies. That’s a good reminder to replace your toothbrush every three months.”

Once E. coli and the other bacteria on this list form colonies, they’re a lot harder to kill because “they start to make an extracellular matrix, which protects them from antimicrobial medicines that you might use in the toothpaste, mouthwash, and even antibiotics,” Geisinger says. “One of the reasons you can’t just take an antibiotic and say ‘oh good, my dental disease is cured’ is because they’re actually in a biofilm.”

The colonies on your toothbrush are similar to the algae that grows at the bottom of the pool, according to Geisinger. “Your pool is full of water—you can’t just swish it around and get that algae off,” Geisinger says. “It’s got to be scrubbed off because it’s protected by this extracellular matrix. In fact, complex biofilms have a circulatory system. So they’re almost like a living organism, composed of all this different bacteria.”

So make sure to flush with the lid down, which will greatly decrease aerosolization, and, therefore, the literal crap on your toothbrush. Also, be sure to wash your hands after you use the restroom and before you brush to avoid transferring fecal matter to your toothbrush that way, Geisinger says, and change your toothbrush every three months.

2. STAPHYLOCOCCUS AUREUS

This bacteria typically lives in your respiratory tract and on your skin, and, under the right conditions, can be responsible for some pretty nasty stuff. “It’s often associated with [antibiotic resistant] MRSA infections or necrotizing fasciitis, which is flesh-eating bacteria,” Geisinger says. Necrotizing fasciitis occurs when bacteria enters the skin through an open wound, and, according to the CDC, most often affects people who have other health problems that might hinder their bodies’ efforts to fight infection. Thankfully, this condition very rare, but you still don’t want the stuff that could cause it on your toothbrush.

3. STREPTOCOCCUS MUTANS

It makes sense that this bacteria would be on your toothbrush—it’s responsible for tooth decay. “But again, we’d like it not to be there,” Geisinger says. “You don’t want to take tooth decaying material from one area of your mouth and put it in another while you’re trying to do your due-diligence about removing deposits.”

Keeping bacteria and other nasty stuff to a minimum on your toothbrush could be as simple as what you buy. According to one study, “Toothbrushes with lighter or clear bristles retain up to 50 percent less bacteria than colored toothbrush bristles,” Geisinger says, potentially because clear toothbrush bristles have less porosity than colored ones. And instead of brushes with fancy perforated or rubber handles, opt for solid plastic handles which studies have shown “had less microbio load than larger or perforated or multi-surface handles [because there are] fewer nooks and crannies for the bacteria to hide in,” Geisinger says.

4. FOOD DEBRIS

That thing you had for dinner last night? Yeah, it’s probably still on your toothbrush the next morning … and now it’s food for the bacteria on there, too! (As are your poop particles. Yuck.) Avoid having unintentional leftovers and clear out bacteria by washing your brush before it goes in your mouth in potable tap water or antibacterial mouth rinse, Geisinger says.

5. AND 6. LACTOBACILLUS and PSEUDOMONAS

“These are two bacteria that have been associated with pneumonia type infections, particularly in hospital settings” where a patient is on a ventilator, Geisinger says. Though Lactobacillus is typically considered a “friendly” bacteria—it’s sometimes used to treat diarrhea and is present in foods and our own guts—it can also be linked to cavities and tooth decay. Pseudomonas can cause eye infections if you use contacts and don't clean them adequately.

Bacteria thrives on brushes that have frayed bristles, by the way, so Geisginer (and the American Dental Association) recommend replacing your toothbrush if the bristles are looking like they’ve seen better days—even if you haven’t hit the three-month mark yet.

7. HERPES SIMPLEX TYPE ONE

And now, a virus! “Herpes simplex type one used to be called oral herpes, but now almost 50 percent of genital lesions are also herpes simplex type one,” Geisinger says. “The viruses are different than bacteria because they come in little capsules, and they’re not technically alive—they need your cells to replicate. In a patient who has an active herpes outbreak, an oral cold sore, that virus can be retained on the toothbrush up to a week.”

Geisinger says she's not aware of any research into "the viability of the viruses on the toothbrushes," but says that transfer of a virus from one person to another by sharing toothbrushes is a possibility under the right circumstances. "HSV can be transmitted in saliva, so sharing toothbrushes during an oral herpes outbreak could lead to a higher risk transfer of viral particles and therefore disease," she says.

8. HPV

Another virus that can make a home on your toothbrush is Human papillomavirus, or HPV. “It’s linked to both cervical cancer and esophageal and oral cancers,” Geisinger says. “The interesting thing about HPV is that the presence of HPV in your mouth seems to decrease if you do a good job with toothbrushing.” And once again, if you share toothbrushes with someone who has HPV, you could be at risk for contracting it yourself. "Both viruses are transmissible in saliva," Geisinger says, "so viral transmission through shared toothbrushes is a possibility."

9. CANDIDA

This fungus is responsible for yeast infections and diaper rash. The most common species in the mouth is called Candida albicans, which causes oral thrush—basically, a yeast infection in your mouth. “[C. albincans] is linked to higher decay rates in kids,” Geisinger says. “In kids that have candida infections, about 15 percent have candida reservoirs on their toothbrush, and it can certainly be passed among siblings or other toothbrushes stored in the same area.” To keep candida from infecting multiple toothbrushes, make sure that the instruments are stored upright and away from each other.

10. MOISTURE

According to Geisinger, one of the worst things you have on your toothbrush is moisture because it encourages bacteria to grow. “There’s a precipitous drop in bacteria [on toothbrushes] after about 24 hours, and that’s really because the toothbrush dries out," she says. "So, if you can, having two toothbrushes is probably advantageous.” If you’re using a toothbrush just once every 24 hours, it will stay nice and dry, and bacterial loads will be low.

Another thing you shouldn’t do: Cover your toothbrush. “Even though it’s tempting because of the fecal matter from the toilet, covering toothbrushes or putting them in your medicine cabinet does not allow them to dry out,” Geisinger says. “Bacterial counts on those toothbrushes are considerably higher than on toothbrushes that are stored upright, separate, and allowed to dry completely.”

11. BLOOD

Up to 70 percent of adults in the United States have gingivitis, and about 47 percent of people over the age of 30 have destructive gum disease. "That means they have ulcerations or microscopic breaks in the tissue underneath the gum lines where they can’t see, which allows blood to get on the toothbrush,” Geisinger says. “It also allows a pathway for bacteria to get into the bloodstream. In patients with inflammation, bacteria in your bloodstream spike after things that would irritate those inflammations—including mastication, eating, toothbrushing, even a visit to your dentist to have a cleaning.” That’s how dental and oral bacteria end up in plaques that are associated with heart disease.

“The amount of bacteria in the bloodstream is actually proportional to how much inflammation and dental disease is present in the mouth,” Geisinger says. “Patients who are receiving regular dental care—that includes dental cleaning and exams—have improved levels of gingival inflammation, less blood in their saliva, and less blood on their toothbrush. So go see your dentist!”

This piece originally ran in 2016.

These Microwavable Plush Animals Are a Charming Way to Keep Warm and Help Reduce Stress

Intelex / Amazon
Intelex / Amazon

There are plenty of ways to stay warm as winter bears down, but one of the easiest solutions is to simply cuddle with one of these microwavable plush animals from Intelex. Aptly called Warmies, there's a whole line to choose from, including bears, bunnies, sloths, pink hippos, and more. Each Warmie is available on Amazon for $17–$20.

Unlike similar products, Warmies don't have a removable heat pack inside; instead, they are filled with natural grains that heat up when you put them in the microwave. What really separates Warmies from the rest, though, is that they contain dried French lavender, which is not only soothing to smell, but can potentially act as a natural sleep aid, according to research.

Microwavable animals from Intelex.
Intelex/Amazon

While Warmies are safe for all ages (make sure kids are doing so under proper adult supervision), they can help adults looking to soothe minor aches, stress, and other ailments. Each time they're warmed up to specifications, expect the heat to last for around 40 to 45 minutes.

And if needed, you can put your Warmie in the freezer for two to three hours (in a sealed freezer bag) and use it as an ice pack.

Humans aren’t the only ones who need some added warmth and stress reduction every now and then. Check out these heated plush toys for dogs.

Mental Floss has affiliate relationships with certain retailers and may receive a small percentage of any sale. But we only get commission on items you buy and don’t return, so we’re only happy if you’re happy. Thanks for helping us pay the bills!

An Alaska Dentist Is Being Prosecuted for Riding a Hoverboard During a Tooth Extraction

LightFieldStudios/iStock via Getty Images
LightFieldStudios/iStock via Getty Images

In July 2016, an Alaskan dentist named Seth Lookhart extracted his patient’s tooth while standing on a hoverboard. After the procedure, he pulled off his gloves, glided down the hall, and threw his hands in the air in a show of (very misguided) triumph. He then texted a video of the whole affair to his friends and family, joking in at least one conversation that it was a “new standard of care.”

He’s getting prosecuted.

But it wasn’t the patient who took him to court—according to CNN, Veronica Wilhelm was sedated for the extraction, and she didn’t even know about the hoverboard incident until the state of Alaska asked her to confirm she was the patient in the video. Alaska charged [PDF] Lookhart with “unlawful dental acts,” claiming that riding a hoverboard during a procedure violates the minimum professional standards of dentistry.

Though Lookhart pleaded not guilty, his defense attorney, Paul Stockler, isn’t arguing that what his client did was fine. On the contrary, he asserted in court that Lookhart had made a “terrible lapse in judgment,” and even apologized to Wilhelm for it.

“It’s unacceptable and be assured that when I agreed to represent him, I got in his face and told him what I thought about him for doing this,” he said while cross-examining Wilhelm, according to KTUU.

Stockler maintains that however ill-advised Lookhart’s behavior may have been, it wasn’t criminal.

“Should he lose his dental license for a period of time, for forever? Is it a crime?” Stockler told CNN. “He’s not the first person to do something idiotic. I’ve seen things a lot worse and nobody’s ever had criminal charges filed against them. As the law is written, I don’t believe that’s a crime.”

It’s up to the court to decide if pulling a tooth on a hoverboard without getting permission from the patient does actually qualify as a crime. And according to KTUU, Wilhelm wouldn’t have given permission had she gotten the chance.

“I would’ve said ‘Hell no!’ No, that’s unprofessional. It’s crazy,” she said in court.

Even if Lookhart eludes conviction on this particular issue, he’s also facing more than 40 other charges. According to CNN, these include billing Medicaid for more than $25,000 in unnecessary or not properly justified procedures; engaging in a scheme to defraud Alaska Medicaid of $10,000; and diverting more than $25,000 in funds from Alaska Dental Arts.

Whatever the verdict, we should find out soon. The trial, which started on November 12, is expected to wrap up this week.

[h/t CNN]

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