How Oral Health and Chronic Disease Are Connected

by dr. elmira gederi shojai oral health Nov 25, 2025
Woman examining oral health and chronic disease connection with magnifying glass on teal background.

The bacteria in your mouth don't stay there — they travel throughout your entire body

Billions of bacteria from your mouth enter your bloodstream every single day.¹·²

These aren't just harmless passengers — some are harmful bacteria setting up camp in your arteries, crossing into your brain, and triggering inflammation throughout your entire body.

The connection between oral health and chronic disease is one of the most overlooked factors in modern medicine.

After 15 years as a dentist, I've watched countless patients suffer from chronic health issues their doctors couldn't explain.

They'd done everything right — clean diets, regular exercise, quality supplements — yet they still struggled with fatigue, brain fog, recurring infections, and mysterious symptoms that kept getting worse.

The problem wasn't in their effort. It was that nobody had looked in their mouths.

Here's what most people don't know: in the mid-1800s, medicine and dentistry split into separate professions.³

Since then, we've treated the mouth as if it exists in isolation from the rest of the body.

Your doctor checks your heart but never asks about bleeding gums.

Your dentist fills cavities but doesn't connect them to your diabetes.

Meanwhile, the bacteria in your mouth are having a party, and they've invited every organ system in your body to join.

In this article, you'll discover how oral bacteria drive heart disease, diabetes, Alzheimer's, and autoimmune conditions — and why testing your oral microbiome might be the most important health decision you make this year.

The connection between your mouth and these chronic diseases is stronger than most medical professionals realize, and understanding it could finally give you the answers you've been searching for.

 
 

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Key Takeaways

  • Your saliva contains approximately 100 million bacteria per milliliter,¹ and adults produce 0.5-1.5 liters daily² — delivering billions of bacteria into your digestive system every day.
  • People with gum disease face 2-3 times higher risk of heart attack and stroke compared to those with healthy gums.⁴
  • Oral bacteria like Porphyromonas gingivalis have been found in Alzheimer's brain tissue, atherosclerotic plaques, and inflamed joints.⁵·⁹·¹⁹·²³·²⁷·²⁸
  • The mid-1800s split between medicine and dentistry created a dangerous gap where chronic illnesses go undiagnosed because nobody connects oral symptoms to systemic disease.³
  • Bleeding gums signal that harmful bacteria are entering your bloodstream through ulcerated tissue.⁶
  • Testing your oral microbiome reveals exactly which bacteria are causing problems, ending years of guessing with generic treatments.
  • Addressing oral health can reduce inflammation markers, improve cardiovascular outcomes, and support recovery from chronic conditions.⁷
 

🔬

Stop Guessing. Start Knowing.

Ready to Discover What's Really Happening in Your Mouth?

The Orobiome Testing Package gives you comprehensive bacterial analysis, a personalized consultation with a licensed dentist, and a targeted healing protocol based on YOUR unique oral microbiome.

Advanced bacterial DNA sequencing to identify your specific strains

Private consultation with a licensed dental professional

Personalized protocol targeting YOUR specific bacterial imbalances

At-home testing • Results in 2-3 weeks • Licensed professional support

When Medicine Abandoned the Mouth

In the mid-1800s, physicians at the University of Maryland College of Medicine made a decision that would impact human health for nearly two centuries.

When dentists Chapin Harris and Horace Hayden proposed adding dental instruction to the medical curriculum, the physicians rejected it.³

This refusal led to the creation of the first separate dental school — and the beginning of a professional divide that persists today.

Before this split, ancient medical texts documented connections between oral infections and systemic illness.

But after the mid-1800s, we created two separate worlds:

Dentists who focus on cavities and cleanings, and doctors who treat everything below the neck while ignoring what's happening above it.

I see the consequences of this split in my practice every single day.

A patient comes in with advanced gum disease, and when I ask about their health history, they mention diabetes that won't stabilize, high blood pressure despite medication, or chronic fatigue their doctor can't explain.

But nobody — not their physician, not their previous dentist — has ever connected these dots.

The 1839 Split

How dentistry and medicine became separate professions

Before 1839
🤝

Unified Health Approach

Ancient medical texts documented oral-systemic connections

 
1839
🦷

Dentistry Path

Focus on cavities, cleanings, and oral symptoms only

🏥

Medicine Path

Treats everything below the neck, ignores oral health

⚠️

The Result

200 years of treating your mouth as separate from your body — while oral bacteria drive chronic disease

Your mouth is the gateway to your body. It's not a separate system.

Every time you eat, brush, or even swallow, bacteria from your oral cavity enter your digestive tract and bloodstream.

When that oral ecosystem is out of balance, those bacteria become invaders triggering inflammation everywhere they go.

🎬

See How Medicine & Dentistry Should Work Together

The Gateway to Health documentary reveals why your mouth is the gateway to total body health — and what happens when this connection gets ignored.

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The Bacteria Highway Nobody Talks About

Here's what happens in your mouth right now, at this very moment:

Approximately 700 different bacterial species are living on your teeth, gums, tongue, and throat.⁸

Most of them are beneficial, helping you digest food, produce vitamins, and protect against harmful invaders. They're supposed to be there.

But when certain bacteria overgrow — usually because of poor oral hygiene, sugar consumption, stress, or genetic factors — they shift from helpful allies to dangerous pathogens.

These harmful bacteria, particularly ones like Porphyromonas gingivalis, don't stay confined to your mouth.

They exploit any opportunity to spread.

Every time you chew, brush your teeth, or even swallow, these bacteria enter your bloodstream through tiny ulcers in your gum tissue.⁶

If you have bleeding gums, you're essentially giving them a direct highway into your cardiovascular system.

Think about that: if your gums bleed when you floss, harmful bacteria are entering your bloodstream at that exact moment.

Once in your bloodstream, these bacteria don't just pass through harmlessly. They colonize distant sites in your body.

Research has found oral bacteria in atherosclerotic plaques, heart valve tissue, brain tissue of Alzheimer's patients, and inflamed joints of people with rheumatoid arthritis.⁴·⁵·⁸·⁹·¹⁹·²³·²⁷·²⁸

They travel everywhere blood flows, setting up inflammatory responses wherever they land.

The numbers are staggering.

Saliva contains approximately 100 million bacteria per milliliter,¹ and you produce about 0.5 to 1.5 liters of saliva every single day³ — meaning billions of bacteria from your mouth enter your gut daily.

When your oral microbiome is healthy, this bacterial transfer supports your gut health and immune function.

But when dysbiosis takes over in your mouth, you're essentially swallowing an inflammatory cascade three times a day with every meal.

 
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🦠
Limited-Time Free Viewing

Understand the Complete Oral-Gut Connection

The Interconnected series reveals how oral bacteria directly affect your gut microbiome and why healing must address both systems together — not one in isolation.

Every time you swallow, billions of bacteria from your mouth seed your gut. If your oral microbiome is out of balance, you're constantly re-infecting your digestive system.

Limited-time free access • Essential for complete healing

How Gum Disease Attacks Your Heart

The connection between gum disease and heart disease isn't just correlation — it's causation happening through multiple biological pathways.

People with periodontal disease have 2-3 times the risk of experiencing a heart attack, stroke, or serious cardiovascular event compared to those with healthy gums.⁴

Here's the mechanism:

Porphyromonas gingivalis, one of the primary bacteria in gum disease, has been found directly inside atherosclerotic plaques — the dangerous fatty deposits that narrow arteries and cause heart attacks.¹⁰·¹³·²⁷

These bacteria don't just happen to be there. They're actively contributing to plaque formation and instability.

When P. gingivalis enters your bloodstream through bleeding gums, it invades the cells lining your blood vessels.¹¹

Once inside, it triggers an inflammatory response that damages the vessel walls.

Your body tries to repair this damage by depositing cholesterol and other substances, creating plaque.

But the bacteria persist inside these plaques, continuing to trigger inflammation that makes the plaques unstable and more likely to rupture — which is what causes heart attacks.¹²

Animal studies have confirmed this pathway.

When researchers repeatedly injected P. gingivalis into mice, they developed significantly more atherosclerosis than control animals — even when both groups ate the same diet and had the same cholesterol levels.¹³

The bacteria alone accelerated plaque formation by triggering oxidative stress and chronic inflammation in the arterial walls.

I had a patient who'd been told by her cardiologist that her cholesterol was "borderline" but nothing to worry about.

She ate well, exercised regularly, and had no family history of heart disease.

But she had chronic bleeding gums that her previous dentist had dismissed with "just floss more consistently."

When we tested her oral microbiome, we found sky-high levels of P. gingivalis and several other pathogenic bacteria.

After six months of targeted treatment to rebalance her oral bacteria, her inflammatory markers dropped significantly — and her cardiologist was shocked at the improvement in her arterial health measurements.

The inflammation connection is crucial.

Gum disease doesn't just create localized inflammation in your mouth.

It increases systemic inflammatory markers throughout your entire body, including C-reactive protein, interleukin-6, and tumor necrosis factor-alpha — all of which are established risk factors for cardiovascular disease.⁷

Your inflamed gums are essentially broadcasting inflammatory signals that affect every organ system.

Orobiome Heart CTA Preview
 
 
💓

Stop Guessing. Start Knowing.

Protect Your Heart. Test Your Mouth.

Get comprehensive oral microbiome testing with a personalized protocol targeting YOUR specific bacterial profile — discover if oral bacteria are impacting your cardiovascular health.

Identify pathogenic bacteria linked to heart disease

Licensed dental professional consultation included

Custom healing protocol based on YOUR results

At-home testing • Results in 2-3 weeks • Licensed professional support

The Diabetes Connection You've Never Heard

The relationship between oral health and diabetes runs in both directions, creating a vicious cycle that worsens both conditions.

People with diabetes are approximately three times more likely to develop severe gum disease.¹⁴

But here's what most people don't know:

Gum disease makes diabetes harder to control, increasing blood sugar levels and insulin resistance.

When you have chronic gum inflammation, the inflammatory mediators released by your immune system don't stay localized to your mouth.

They circulate throughout your body, interfering with insulin signaling.¹⁵

Your cells become less responsive to insulin, requiring more of it to move glucose out of your bloodstream.¹⁶

This insulin resistance drives blood sugar higher, creating the exact problem diabetics are trying to avoid.

One of my most memorable patient transformations involved a woman I'll call Susan.

She'd had type 2 diabetes for seven years, and despite taking medication and following her endocrinologist's dietary recommendations carefully, her A1C levels remained stubbornly high.

When she came to see me about persistent bad breath and bleeding gums, I noticed she had moderate to severe periodontal disease.

After we addressed her gum disease with deep cleaning and targeted antimicrobial therapy, something remarkable happened.

Within three months, her A1C dropped from 8.2 to 6.9 — the best control she'd had in years.

Her endocrinologist reduced her medication dosage.

Susan hadn't changed her diet or exercise routine.

The only variable that changed was eliminating the chronic inflammation coming from her mouth.

The research backs this up.

Multiple studies have shown that treating periodontal disease in diabetic patients leads to meaningful reductions in A1C levels, typically around 0.4 to 0.7 percentage points.¹⁷

That might not sound dramatic, but in diabetes management, every fraction of a point matters for reducing the risk of complications like neuropathy, kidney disease, and vision loss.

The oral bacteria involved in gum disease can also directly affect pancreatic function.

When inflammation becomes chronic, it can damage the insulin-producing beta cells in your pancreas, worsening your body's ability to regulate blood sugar on its own.¹⁸

Your Brain on Oral Bacteria

The connection between oral health and Alzheimer's disease is one of the most alarming discoveries in recent research.

Studies have found Porphyromonas gingivalis — the same bacteria that drives gum disease — in the brain tissue of Alzheimer's patients.⁵·⁹·¹⁹·²³

These aren't just traces. The bacteria are present in quantities that suggest active infection.

How do oral bacteria reach your brain?

They travel through your bloodstream and cross the blood-brain barrier, which is supposed to protect your brain from pathogens.

Once inside, these bacteria trigger chronic inflammation in brain tissue.

Your immune system responds by activating microglia, the brain's immune cells, which release inflammatory chemicals that damage neurons.

Over time, this chronic inflammation contributes to the accumulation of beta-amyloid plaques and tau tangles — the hallmark features of Alzheimer's disease.⁵·⁹·¹⁹·²³

The bacterial toxins also play a direct role.

P. gingivalis produces enzymes called gingipains, which are toxic proteins that damage brain tissue and interfere with the cellular machinery that clears away damaged proteins.

When researchers have blocked these gingipains in animal models, they've seen reduced brain inflammation and less Alzheimer's-type pathology.²⁰

Research has also linked gum disease to increased risk of stroke.

The inflammation from periodontal disease promotes the formation of blood clots, and the bacteria themselves can trigger clotting mechanisms.²¹

One study found that people with severe gum disease were 2.8 times more likely to have a stroke compared to those with healthy gums.²²

But it's not just Alzheimer's and stroke.

Patients with gum disease report higher rates of brain fog, poor concentration, and memory problems even before any formal diagnosis of cognitive decline.²⁹

This makes sense when you consider that chronic inflammation anywhere in the body affects brain function.

Those inflammatory molecules cross into your brain and interfere with neurotransmitter production, neuroplasticity, and the formation of new memories.²³

When Your Immune System Can't Keep Up

Your immune system is remarkably efficient at dealing with transient bacterial exposures.

But when you have chronic gum disease, you're overwhelming your immune defenses every single day.

The constant bacterial load from your mouth forces your immune system into a state of perpetual activation,²⁴·³⁰ which has devastating consequences throughout your body.

This chronic immune activation is why gum disease has been linked to autoimmune conditions.

Researchers have found oral bacteria in the synovial fluid of rheumatoid arthritis patients — meaning these mouth bacteria have colonized the joints and are contributing to the inflammatory destruction of cartilage and bone.²⁵

The immune system, already confused and attacking the body's own tissues in autoimmune disease, becomes even more dysregulated when faced with a constant bacterial challenge from the oral cavity.

The inflammatory burden affects your entire body.

When gum disease persists, your liver produces elevated levels of C-reactive protein and other acute-phase proteins.²⁶

Your blood vessels become inflamed, your gut barrier weakens, and your immune system struggles to respond appropriately to other threats.

You become more susceptible to infections, slower to heal from injuries, and more vulnerable to developing new inflammatory conditions.

I've seen patients who've been diagnosed with fibromyalgia, chronic fatigue syndrome, or "unexplained" autoimmune markers improve dramatically after we addressed their oral infections.

One patient had been suffering from debilitating joint pain for three years, seeing multiple rheumatologists who couldn't give her a definitive diagnosis.

Her bloodwork showed elevated inflammatory markers, but nothing fit a clear autoimmune pattern.

When she came to me with complaints of chronic bad breath, I found severe periodontal disease with deep pockets and significant bone loss.

After applying targeted solutions for her gum disease over several months, her joint pain reduced by about 70%.

Her inflammatory markers dropped.

She wasn't cured — she still has some joint discomfort — but she went from barely functional to being able to work full-time and enjoy activities with her grandchildren.

The Warning Signs Nobody Connects

Most people don't realize their oral health is affecting their entire body because the symptoms seem unrelated.

You go to your doctor complaining of fatigue, and they run thyroid tests.

You see a cardiologist about high blood pressure, and they prescribe medication.

You visit a neurologist for brain fog, and they suggest it's stress.

But nobody asks: "When you brush your teeth, do your gums bleed?"

Here are the warning signs that suggest your oral bacteria might be driving chronic health problems:

Bleeding gums when brushing or flossing.

This is the most obvious sign, yet it's the one most people dismiss.

Healthy gums don't bleed.

If yours does, you have inflammation and likely bacterial overgrowth.

Those bleeding points are entry portals for bacteria to access your bloodstream directly.

The Bacteria Highway

How oral bacteria travel throughout your body

1
👄

Your Mouth

700 bacterial species colonize your teeth, gums, and tongue

2
💧

Entry Through Bleeding Gums

Harmful bacteria enter bloodstream through ulcerated gum tissue

3
🩸

Bloodstream Highway

Bacteria travel to distant organs wherever blood flows

4
🫀

Colonization Sites

Heart valves, brain tissue, arterial plaques, inflamed joints

100 Million+

Bacteria per milliliter of saliva entering your system daily

Chronic bad breath that doesn't improve with brushing.

Persistent halitosis usually indicates anaerobic bacteria colonizing your tongue, gums, or throat.

These same bacteria produce inflammatory compounds that affect your entire body.

Receding gums or teeth that look longer.

Gum recession happens when chronic inflammation destroys the tissue and bone supporting your teeth.

This process releases bacteria and inflammatory mediators into your bloodstream constantly.

Loose teeth or changes in your bite.

By the time teeth become loose, significant bone loss has occurred, meaning you've had chronic infection and inflammation for quite a while.

The systemic effects of this long-term bacterial exposure can be severe.

Oral Bacteria's Systemic Impact

One pathogen, multiple disease connections

🦠

Porphyromonas gingivalis

Primary gum disease bacteria

❤️
Heart Disease

2-3x higher risk of heart attack and stroke

🩸
Diabetes

3x more likely to develop severe gum disease

🧠
Alzheimer's Disease

Found in brain tissue of Alzheimer's patients

🩺
Stroke

2.8x higher stroke risk with severe gum disease

🦵
Autoimmune Conditions

Found in inflamed joints of rheumatoid arthritis patients

🔥
Chronic Inflammation

Elevates inflammatory markers throughout entire body

These connections are established through peer-reviewed research — not speculation

Painful chewing or temperature sensitivity.

These symptoms often indicate dental decay or infection reaching deeper into tooth structure — sources of chronic bacterial load that stress your immune system.

Frequent cavities despite good hygiene.

If you're brushing and flossing regularly but still getting cavities, your oral microbiome is out of balance.

The bacteria producing those cavities are also entering your digestive tract and bloodstream.

Chronic health issues that don't respond to treatment.

If you've tried everything for your fatigue, digestive problems, inflammatory conditions, or metabolic issues without improvement, your mouth might be the missing link nobody has investigated.

⚠️

Is Your Mouth Making You Sick?

Check for these warning signs

Bleeding Gums

Gums bleed when brushing or flossing — bacteria entering bloodstream

Persistent Bad Breath

Chronic halitosis despite brushing — anaerobic bacteria overgrowth

Receding Gums

Teeth appear longer — chronic inflammation destroying tissue

Loose Teeth

Teeth shifting or wobbling — significant bone loss from infection

Temperature Sensitivity

Pain with hot or cold — decay reaching deeper tooth structure

Frequent Cavities

Recurring decay despite good hygiene — microbiome imbalance

Unexplained Chronic Health Issues

Fatigue, inflammation, or symptoms that don't respond to treatment

🔬

Even ONE checked box warrants comprehensive oral microbiome testing

The connection isn't always obvious, which is why testing becomes essential.

I can look in someone's mouth and see clinical signs of disease, but I can't tell you which specific bacteria are present or how severe the dysbiosis is without testing.

That's why we've partnered with the best microbiome testing lab in the country — to give people actual data instead of guesses.

🔬

Precision Over Guesswork

Get Answers You Can Actually Use

The Orobiome Testing Package includes comprehensive microbiome analysis, a private consultation with a licensed dentist who will explain your results, and a personalized protocol targeting YOUR specific bacterial imbalances.

Generic Approach

Random mouthwashes, hoping something works

Targeted Protocol

Know exactly which bacteria to address

Advanced bacterial DNA sequencing identifies your specific strains

Licensed dentist consultation to interpret your unique results

Personalized healing protocol based on YOUR bacterial profile

Get Tested Now

At-home testing • Results in 2-3 weeks • Licensed professional support

Why Testing Beats Guessing Every Time

For decades, dental care has operated on a "drill, fill, and bill" model.

You come in with a cavity, we fill it.

Your gums bleed, we tell you to floss more.

But this reactive approach completely misses the underlying cause: bacterial imbalance in your oral ecosystem.

Testing your oral microbiome gives you specific, actionable information that generic dental care never provides.

Instead of assuming all gum disease is the same, testing reveals exactly which bacteria are causing YOUR inflammation.

Instead of trying random mouthwashes and hoping they help, you get a targeted protocol based on your unique bacterial profile.

The technology for this testing has advanced dramatically in recent years.

Using bacterial DNA sequencing, we can now identify not just the presence of specific bacteria but their relative abundance and how they're interacting with each other in your oral ecosystem.

We can see if you have high levels of P. gingivalis, Treponema denticola, Tannerella forsythia, or dozens of other species associated with disease.³¹

We can also see if you're lacking protective bacteria that help maintain oral health.

This information transforms treatment from guesswork into precision medicine.

If testing shows you have severe dysbiosis dominated by P. gingivalis, we know this bacteria responds well to specific antimicrobials and doesn't respond to others.

If you have an overgrowth of Candida species, we take a completely different approach.

If your protective bacteria are depleted, we focus on rebuilding those populations before trying to eliminate pathogens.

One of my patients had been struggling with recurrent gum infections for five years.

She'd been through multiple rounds of antibiotics, professional cleanings every three months, and expensive specialty treatments.

Nothing worked for more than a few weeks before the infection returned.

When we finally tested her oral microbiome, we discovered she had an unusual species that wasn't responding to the antibiotics she'd been prescribed.

We switched to a targeted protocol based on her test results, and within eight weeks, her gums showed the first sustained improvement she'd had in years.

Testing also lets us track progress objectively.

Instead of relying on how your gums look or how you feel, we can retest after treatment and see exactly how the bacterial populations have changed.

Did the pathogenic bacteria decrease? Did the beneficial species increase? This data-driven approach removes the guesswork and lets us adjust treatment if needed.

For people dealing with chronic health conditions potentially linked to oral bacteria — heart disease, diabetes, autoimmune conditions, cognitive decline — testing becomes even more critical.

You need to know if oral bacteria are contributing to your systemic inflammation.

You need to track whether addressing your oral health is impacting your overall health markers.

Guessing isn't good enough when your long-term health is at stake.

 
 
🔬

Your Symptoms Have a Source

Stop Guessing. Start Knowing.

The Orobiome Testing Package analyzes your specific oral bacterial profile, identifies exactly which pathogens are driving your inflammation, and provides a personalized protocol from a licensed dentist.

🧬

DNA Sequencing

Identify your specific bacterial strains

👨‍⚕️

Expert Consultation

Licensed dentist reviews your results

📋

Custom Protocol

Targeted healing plan for YOUR mouth

At-home testing • Results in 2-3 weeks • Licensed professional support

✓ Trusted by thousands nationwide • No more generic advice that doesn't work

The Test-First Philosophy That Changes Everything

What I love about the approach we've developed through Gateway to Health is that it mirrors what we've learned works for gut health.

You wouldn't take random probiotics and hope for the best if you had serious digestive issues.

You'd want to know what's actually happening in your gut.

The same principle applies to your mouth.

Testing first, then creating targeted interventions based on that data, is how modern functional medicine should work.

It's how we've been approaching gut health through the KBMO gut testing we offer, and it's the same philosophy we're bringing to oral health through the Orobiome test.

 

The mouth and gut aren't separate systems — they're two parts of one continuous tube.

The bacteria in your mouth directly seed your gut microbiome every time you swallow.

If your oral microbiome is dominated by inflammatory bacteria, you're essentially inoculating your gut with these pathogens multiple times per day.

This is one reason why people with gum disease often struggle with digestive issues, and why addressing oral health can improve gut symptoms.

My husband, Dr. Pedram, and I created the Gateway to Health documentary series specifically to bridge this gap between medicine and dentistry.

We brought together the leading experts in oral health, cardiovascular disease, and systemic inflammation to explain these connections that mainstream medicine still largely ignores.

The response has been overwhelming — thousands of people finally understanding why their health hasn't improved despite doing "everything right."

 
🎬
Free Documentary Series

See the Complete Picture of Oral-Systemic Health

Watch free for 10 days

The Gateway to Health documentary series features cutting-edge research and expert interviews that reveal how your mouth affects every organ system — and what you can do about it.

Oral-Systemic Connections

Heart disease, diabetes, Alzheimer's, autoimmune conditions

Leading Experts

Top physicians & dentists reveal what's been missing

The 1839 Split

Why medicine abandoned the mouth for 200 years

Actionable Protocols

Strategies you can implement immediately

Free 10-day access • Episodes delivered to your inbox • Watch anytime

Featuring Dr. Pedram Shojai, Dr. Elmira Shojai, and leading experts in oral-systemic health

Your Mouth Is the Gateway — What Happens Next?

If you're reading this and recognizing yourself in these descriptions — the bleeding gums you've dismissed, the chronic health issues nobody can explain, the sense that something important is being missed — you have options now that didn't exist even five years ago.

The first step is understanding that your oral health directly impacts your systemic health.

Your mouth isn't separate from your body.

The bacteria living there affect your heart, brain, immune system, metabolic health, and inflammatory status throughout your entire body.

Dismissing oral symptoms as "just dental problems" is a mistake that can have serious long-term consequences.

The second step is getting actual data about what's happening in your oral ecosystem.

Stop guessing.

Stop assuming all gum disease is the same and treating it generically.

Test your oral microbiome and find out exactly which bacteria are present, which ones are overgrown, and which beneficial species you're lacking.

This information is the foundation for effective treatment.

The third step is working with professionals who understand these connections.

You need a dentist who looks beyond cavities and sees your oral health as part of your overall wellness.

You need healthcare providers who understand that inflammation in your mouth contributes to inflammation everywhere.

You need a personalized protocol based on your unique bacterial profile, not a one-size-fits-all approach.

I've spent 15 years learning these connections and implementing this test-first approach in my practice.

I've seen patients transform their health by addressing oral bacteria that conventional dentistry never identified.

I've watched cardiovascular markers improve, blood sugar stabilize, inflammatory conditions calm down, and chronic fatigue lift — all because we stopped treating the mouth as separate from the body.

The Gateway to Health movement is about bridging the gap that was created nearly 200 years ago.

It's about bringing the mouth back into the body where it belongs.

It's about using modern testing technology to identify root causes instead of just treating symptoms.

And it's about empowering you with the knowledge and tools to take control of your health in ways that weren't possible before.

Your chronic health issues might not be as mysterious as they seem.

The answer might be hiding in plain sight — right there in your mouth every time you look in the mirror.

The question is: are you ready to look?

Start your healing journey with comprehensive oral microbiome testing.

The Orobiome Testing Package includes everything you need:

  • At-home test kit,
  • licensed oral health professional consultation,
  • personalized protocol,
  • plus access to our Gateway to Health video series
  • and 14 days of group coaching support.

Finally get the answers your conventional care has been missing.

If you're dealing with gut issues alongside your oral health concerns, comprehensive gut testing can reveal the complete picture of how your oral-gut axis is functioning.

Many of our patients benefit from testing both systems to understand the full scope of their microbiome health.

About the Author

Dr. Elmira Shojai

Dr. Elmira Shojai is a Doctor of Dental Surgery with over 15 years of hands-on clinical experience revolutionizing how we understand the connection between oral health and whole-body wellness.

After graduating from the University of the Pacific, consistently ranked among the world's most prestigious dental schools, Dr. Elmira spent over a decade in active clinical practice in California, where she treated thousands of patients and discovered patterns conventional dentistry was completely missing.

Time and again, she witnessed patients with perfect oral hygiene developing gum disease, recurring cavities, and chronic bad breath — symptoms that pointed to deeper systemic issues.

She saw patients with heart disease, diabetes, and autoimmune conditions who had severe oral infections that no one had connected to their declining health.

These clinical observations led her to functional dentistry and oral microbiome science.

In May 2025, Dr. Elmira made a pivotal decision: transition from one-patient-at-a-time clinical practice to leading Gateway to Health as Chief of Dental Programs, where she could scale her impact to reach thousands.

She now oversees a nationwide network of licensed dentists who provide personalized consultations based on cutting-edge oral microbiome testing — the same testing she wishes she'd had access to throughout her clinical career.

Featured as a leading expert in the Gateway to Health documentary series alongside her husband, Dr. Pedram Shojai (NYT bestselling author and founder of The Urban Monk), Dr. Elmira brings real-world clinical experience to every educational resource, protocol, and patient consultation.

Her mission is clear: bridge the dangerous gap created when medicine and dentistry split in the mid-1800s, and help people understand that the mouth isn't separate from the body — it's the gateway to systemic health.

 

Sources

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  2. Iorgulescu G. Saliva between normal and pathological. Important factors in determining systemic and oral health. J Med Life. 2009.
  3. Journal of Ethics, American Medical Association. Overcoming Historical Separation between Oral and General Health Care: Interprofessional Collaboration for Promoting Health Equity. September 2016.
  4. Harvard Health Publishing. Gum disease and heart disease: The common thread. February 2021.
  5. Ryder M. Porphyromonas gingivalis and Alzheimer disease: Recent findings and potential therapies. J Periodontol. 2020.
  6. Hajishengallis G. Periodontitis: from microbial immune subversion to systemic inflammation. Nat Rev Immunol. 2015.
  7. Lockhart PB, et al. Periodontal disease and atherosclerotic vascular disease: does the evidence support an independent association?: a scientific statement from the American Heart Association. Circulation. 2012.
  8. Deo PN, Deshmukh R. Oral microbiome: Unveiling the fundamentals. J Oral Maxillofac Pathol. 2019.
  9. Shawkatova I, et al. Alzheimer’s Disease and Porphyromonas gingivalis: Exploring the Links. Life. 2025.
  10. Ruan Q, Guan P, Qi W, et al. Porphyromonas gingivalis regulates atherosclerosis through an immune pathway. Front Immunol. 2023.
  11. Deshpande RG, Khan MB, Genco CA. Invasion of aortic and heart endothelial cells by Porphyromonas gingivalis. Infect Immun. 1998.
  12. Huang X, et al. Porphyromonas gingivalis aggravates atherosclerotic plaque instability by promoting lipid-laden macrophage necroptosis. Signal Transduct Target Ther. 2025.
  13. Lalla E, Lamster IB, Hofmann MA, et al. Oral infection with a periodontal pathogen accelerates early atherosclerosis in apolipoprotein E-null mice. Arterioscler Thromb Vasc Biol. 2003.
  14. Harvard School of Dental Medicine. Understanding the connection between gum disease and diabetes.
  15. Gurav AN. Periodontitis and Insulin Resistance: Casual or Causal Relationship? Diabetes Metab J. 2012.
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