North Idaho Dental Group
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The Oral-Gut Connection: How Digestive Health Affects Your Smile

August 17, 2025
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Posted By: Dr. Ben Gates
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Digestive health can have a direct impact on your oral health. Additionally, your oral health can impact your gut health in the opposite direction.

Dentists have long known about the connection between gum disease and systemic health problems, but new studies find links between your oral health and digestion.

In this blog, we explore the relationship between digestion and your smile, or your oral health and your digestive tract, including:

  • Erosive GERD and Your Smile
  • Tooth Loss and Digestion
  • The Oral and Gut Microbiome Axis

Erosive GERD and Your Smile

The gut and mouth interact with each other in various ways. Erosive GERD or acid reflux is one example.

When your stomach produces too much acid or acid is allowed to enter the mouth through the stomach, it can damage your tooth enamel.

If you suspect acid reflux or GERD, it’s essential to seek treatment from your doctor to avoid damage to the esophagus and teeth.

Tooth Loss and Digestion

Tooth loss directly impacts your digestion and the way you absorb nutrition. If you have missing teeth, chewing correctly may be a challenge. If you have missing teeth, it’s essential to talk to your dentist about tooth replacement.

Options may include:

A complete smile helps you grind food correctly to maximize your nutrition and digestion.

Oral and Gut Microbiome Axis

According to a recent study, “oral and gut microbiomes interdependently regulate physiological functions and pathological processes.”

Additionally, the oral and gut microbiome are directly linked to diseases of the GI tract, which may include inflammatory bowel and pancreatic disease.

Your best defense is regular dental checkups, excellent oral hygiene, and a healthy diet!

When to Call Your Dentist in Ponderay or Coeur d’Alene, ID

If you notice oral health changes, if it’s time for your next checkup, or if you suspect acid reflux, it’s essential to talk to your dentist. To get started or if you have questions for our team, call us today at (208) 255-1255.

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