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Oral Probiotics: A Dental Hygiene Necessity

EVIDENCE BASED

Evidence Based

iHerb has strict sourcing guidelines and draws from peer-reviewed studies, academic research institutions, medical journals, and reputable media sites. This badge indicates that a list of studies, resources, and statistics can be found in the references section at the bottom of the page.

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The Best Thing You’re Not Doing for Your Mouth (And It’s Shockingly Simple)

You brush. You floss. You rinse. It’s the classic routine you’ve followed since your first trip to the dentist—a gold star-worthy lineup. But what if the best thing you could be doing for your mouth isn't in your bathroom cabinet yet?

Infection in the mouth ranks as the second most prevalent chronic disease in the world1, and it doesn’t just affect your smile. If left untreated, oral disease can worsen and complicate conditions like diabetes, cardiovascular disease, and even pregnancy outcomes. 

In turn, oral health is undergoing a quiet revolution. However, while dentistry has come a long way, many of its most common practices haven’t evolved considerably over the decades. But science has! We now have access to newer, non-invasive, evidence-based approaches that align with total body health. 

One of the simplest, most powerful tools leading the charge: oral probiotics.

If you’re someone who values natural, preventive solutions, it’s time to discover the shockingly simple step that could change everything for your oral health.

What Are Oral Probiotics?

Probiotics are beneficial bacteria that help restore and maintain a healthy environment in the mouth. Ideally, we’d all be born with thriving communities of these helpful microbes already living in our bodies, including our oral cavity. However, after generations of widespread antibiotic use and rising bacterial resistance, research suggests that many people today may actually begin life with fewer of these protective bacteria than ever before.2

Your mouth is a vibrant ecosystem, and keeping it in balance is essential for both oral and overall health. When that balance is disrupted, harmful bacteria can take over, leading to inflammation, gum damage, oral infections, and even increased risk for broader systemic health issues. The body also becomes less equipped to regulate inflammation and immune responses effectively.

Benefits Of Oral Probiotics

Excitingly, science now supports the idea that reintroducing health-promoting bacteria into the mouth can make a meaningful difference.2 

Clinical results show promising improvements with routine oral probiotics such as:

  • Reduced gum bleeding
  • Improved gum health
  • Better gum comfort and attachment
  • Noticeably fresher breath

Unlike antiseptic mouthwashes that wipe out everything, oral probiotics work with your body in harmony. These helpful bacterial strains, like Limosilactobacillus reuteri ATCC PTA 5289 and DSM 17938, help restore microbial balance, support the ongoing development of beneficial bacteria, and encourage a healthier, more resilient oral environment. 

This tiny addition to your daily routine? It's the shockingly simple thing your mouth has been missing.

The Hidden Cost Of Oral Disease

Let’s be clear: oral health isn’t just about teeth. 

Your mouth is the gateway to nearly every major system in your body. Bleeding gums, for example, may seem harmless, but they can serve as an open door for harmful bacteria to enter your bloodstream and travel throughout your body.

Chronic gum disease has been linked to serious conditions such as heart disease, stroke, uncontrolled blood sugar, brain conditions like dementia and Alzheimer’s Disease, respiratory illness, and even adverse pregnancy outcomes. And here’s the kicker: most people don’t feel any oral pain or discomfort until the complications are already advanced.

This is why prevention of oral issues is critical! Research has now identified that supporting a healthy oral microbiome (your body’s community of good and bad bacteria) is one of the smartest things you can do, naturally.3

Why Your Dental Care Team Might Not Be Talking About This Yet

Brushing, flossing, and rinsing are foundational patient-driven strategies to oral health—no arguments there. But they don’t address one of the core drivers of oral disease: a disrupted microbial balance.

A disrupted microbial balance in the mouth allows harmful bacteria to overpower the beneficial ones, leading to gum inflammation, oral tissue damage, and bad breath.  Additionally, harmful bacteria can increase the risk of systemic disease as these disease-causing critters and their byproducts easily enter the bloodstream through bleeding gum tissues.

Most dental professionals are trained to treat this bacterial disruption with mechanical and surgical interventions: remove plaque, scrape tartar, and polish enamel. But what many oral care routines still overlook is the crucial role of balancing the oral microbiome.

In fact, many common oral healthcare products, like alcohol-based mouthwashes, can completely obliterate the bacteria in your mouth, good and bad. It's like burning down the whole forest to get rid of a few weeds. Medicine has learned this lesson with gut health. Now it’s time for dentistry to apply that knowledge to the mouth.

That’s where oral probiotics come in.

The Best Probiotic For Oral Health 

We know probiotics are important, but are all probiotics created equal? Take one walk down the supplement aisle or browse iHerb, and you’ll find dozens of options, all promising results. So, how do you know which one is right for your oral health?

The answer lies in the strain of bacteria. Just like dog breeds have different personalities and needs—a pug might nap all day while a golden retriever lives for long walks—bacterial strains also have unique properties and functions. It’s not enough to know the species; the strain tells you what that probiotic is actually capable of. 

Clinically studied strains like Limosilactobacillus reuteri ATCC PTA 5289 and DSM 17938 are highly specific  bacterial strains designed to offer benefits such as:4

  • Reduction in inflammation by calming immune overreactions in the gums
  • Inhibition of the growth of problem-causing bacteria like P. gingivalis
  • Support of soft tissue healing and reattachment
  • Improvement of your breath by naturally balancing odor-causing bacteria and their by-products

In my practice, I’ve seen firsthand how this tiny fix transforms my diseased patients. People who once dreaded their dental visits now show up with healthier gums, fresher breath, and renewed confidence.

And the best part? No needles. No scraping. No stinging rinses. Just a naturally derived, science-backed lozenge that works behind the scenes while you go about your day.

Why This Matters More Than Ever

We’re entering a new era of healthcare—one rooted in prevention, personalization, and the science of connection.

Oral inflammation is now recognized as a critical contributing factor to systemic inflammation, which plays a role in countless chronic conditions. As more people turn toward functional medicine and holistic care, they are seeking smart and simple solutions that work with the body.

That’s what evidence-based oral probiotics offer: a bridge between traditional hygiene and modern wellness. It’s the best of both worlds—natural, effective, and supported by real science.

Tips For Starting Oral Probiotics

This tiny fix has been a game-changer for my patients. And it might just be the smartest, simplest step you take for your own oral health.

Here’s how to get started:

  • Look for probiotics with Limosilactobacillus reuteri and specifically the DSM 17938 and ATCC PTA 5289 strains.
  • Use a lozenge to dissolve slowly in the mouth, delivering beneficial bacteria right where they’re needed.
  • If your dental professional reports that you had a great check-up, continue to take it once daily after brushing and flossing. 
  • If your dental professional reported some dental concerns, consider taking one lozenge twice daily after brushing and flossing.

And remember: oral probiotics are a powerful addition, not a replacement, to your dental care routine. Keep showing up for your checkups—you’ll likely give your dental hygienist less to clean and more to cheer about.

Try it for 30 days. This might be the easiest, most impactful step you can take for your mouth, your health, and your future.

It really is the best thing you’re not currently doing for your mouth. (But not for long.)

*Disclaimer: These statements have not been evaluated by the Food and Drug Administration.  This product is not intended to diagnose, treat, cure, or prevent any disease.

References: 

  1. The American Academy of Periodontology.  Staging and grading of periodontitis: Framework and proposal of a new classification and case definition.  Available at: https://aap.onlinelibrary.wiley.com/doi/10.1002/JPER.18-0006
  2. Mu Q, Tavella VJ, Luo XM. Role of Lactobacillus reuteri in Human Health and Diseases. Front Microbiol. 2018 Apr 19;9:757. doi: 10.3389/fmicb.2018.00757. PMID: 29725324; PMCID: PMC5917019.
  3. Patil, S., Rao, R. S., Amrutha, N., & Sanketh, D. S. (2013). Oral microbial flora in health. World J Dent, 4(4), 262-6.
  4. Jones, S. E., & Versalovic, J. (2009). Probiotic Lactobacillus reuteri biofilms produce antimicrobial and anti-inflammatory factors. BMC microbiology, 9, 1-9.

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