Reviewed by Dr. Kerri Font, DDS

Reading time: four minutes

We used to think of the mouth and the gut as separate systems. Today, science shows they are in constant communication through what is called the “oral-gut axis.” This connection means that an imbalance in your oral microbiome can directly influence your gut microbiome, gut health, and overall wellness. 

In this blog, you will learn how to fix oral microbiome imbalances by understanding the link between gum health and gut health. We will explain how harmful bacteria in the mouth can disrupt your digestive system, the risks this creates for long-term wellness, and the practical steps you can take to restore balance.

Table of Contents

Key Takeaway

The health of your gums and your gut are directly linked through the oral-gut axis. Balance your oral microbiome by treating gum disease, maintaining strong oral health habits, and supporting your gut microbiome with the right diet to improve digestion and reduce systemic inflammation.

The Oral-Gut Axis: A Two-Way Street

The oral cavity and the gut are closely connected, with bacteria constantly moving between them. Studies show that oral microbes, especially those linked to periodontal disease, can travel to the intestines and disturb the gut microbiome. 

When this balance is disrupted, it can increase gut permeability, trigger chronic inflammation, and contribute to conditions that affect overall health. Because of this strong link, gum disease and gut health are now central topics in holistic periodontics and functional medicine.

How an Unbalanced Oral Microbiome Harms Your Gut

When the oral microbiome is out of balance, the impact goes far beyond your mouth. Harmful oral bacteria and the inflammation they cause can influence the health of your entire gastrointestinal tract. 

Here are the main ways this connection unfolds:

  • Direct contamination: When gum disease is present, harmful bacteria such as Porphyromonas gingivalis thrive. Each time you swallow, billions of these bacteria move from the mouth into the digestive system, where they continue to spread.
  • Disrupting the balance: Once inside the gut, these bacteria upset the delicate balance of beneficial gut microbiota. This imbalance, known as dysbiosis, can lead to gas, bloating, poor nutrient absorption, and chronic inflammation.
  • “Leaky gut”: Research also shows that oral pathogens weaken the protective lining of the intestines. This condition, often called “leaky gut,” allows toxins and bacteria to pass into the bloodstream. The result is widespread systemic inflammation that can worsen conditions like inflammatory bowel disease, cardiovascular disease, and autoimmune disorders.

3 Steps to Balance Your Oral Microbiome

A balanced oral microbiome depends on both professional care and consistent daily habits. By addressing harmful bacteria and strengthening your oral and gut health, you create the foundation for lasting wellness.

Step 1: Treat the Source of Infection

You cannot restore balance until active gum disease is addressed. Professional periodontal treatment, such as scaling and root planing, removes deep-seated bacteria and creates a healthier foundation for your oral microbiota and immune response.

Step 2: Maintain Excellent At-Home Care

Daily brushing and flossing are essential, but adding tools such as a water flosser can help remove bacteria from areas your toothbrush cannot reach. If recommended by your periodontist, an antibacterial mouthwash may also be useful in reducing harmful bacteria and keeping your gums healthier. 

Step 3: Support Your Microbiome With Diet and Lifestyle

Beneficial gut and oral bacteria thrive on a diet rich in fiber, vitamins, and plant-based polyphenols. Limit processed sugar to reduce inflammation and protect your immune response. 

A nutrient-rich diet lays the foundation for a healthy microbiome, but lifestyle habits are just as important. Managing stress, getting quality sleep, and staying physically active all work together to support balance in both the mouth and the gut.

Schedule a Periodontal Consultation

A healthy mouth is the first step toward a healthier gut. Contact Highlands Ranch Periodontics & Dental Implants to schedule a periodontal evaluation at one of our two Colorado locations:

FAQs

How do you reset your mouth microbiome?

How do you reset your mouth microbiome?
You can reset your oral microbiome by first eliminating active gum disease through professional treatment. Once infection is controlled, daily oral health habits such as brushing twice a day, flossing, and rinsing with antimicrobial mouthwash help restore balance. A nutrient-rich diet and reduced sugar intake also encourage healthy oral bacteria to thrive.

Can probiotics help with gum disease?

Certain probiotics can support gum health by increasing beneficial bacteria and reducing harmful strains linked to periodontal disease. While probiotics are not a substitute for professional periodontal treatment, they may enhance immune response, improve oral microbiota balance, and support long-term oral and gut health.

Is there a periodontist near me accepting new patients?

Highlands Ranch Periodontics & Dental Implants welcomes new patients at both our Highlands Ranch and Sloan’s Lake offices. Whether you need gum disease treatment, dental implants, or a comprehensive periodontal evaluation, our team is here to help. Call (303) 683-1144 to schedule your visit at the location that works best for you.

Categories: Periodontics