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How Oral Infections Affect Your Overall Health
New research from King’s College London shows that silent tooth infections may be doing more damage than most patients realize. Some infections sit quietly at the root, undetected on X-ray and unfelt until they’re flagged at a routine visit. But even when an infection isn’t causing you pain, it can still negatively impact your health.
This study followed patients with deep root infections for two years after treatment. After their root canals, those patients showed lower blood sugar levels, healthier cholesterol, and reduced markers of inflammation. The likely reason: bacteria from infected tissue had been entering the bloodstream, keeping the immune system in a low state of alarm that affected the body’s metabolic function.
Treating the infection appeared to quiet that alarm. This doesn’t mean a root canal is a treatment for blood sugar problems, but it reinforces what we’ve always believed: a healthy mouth supports a healthy body. Staying current with your visits helps us catch the quiet problems before they have a chance to become something bigger.
Fighting Bad Bacteria While Keeping the Good
Traditional gum disease treatments have always had a trade-off: to reduce harmful bacteria, we often disrupted the healthy bacteria living alongside them. New research published in 2026 may change that approach.
Scientists at the University of Minnesota discovered that blocking the chemical signals bacteria use to communicate with each other, rather than killing them outright, can shift the oral microbiome toward a healthier, more balanced state. By interrupting how harmful bacteria “talk,” researchers were able to reduce disease-associated communities without harming the beneficial ones.
This kind of targeted, microbiome-aware approach represents a meaningful shift in how dental science thinks about prevention and treatment. While these tools are still being developed, the underlying principle reflects what we already aim for in our care: working with your biology rather than against it.
Gum Health and Breast Cancer Risk
New research from Johns Hopkins has added an important new dimension to what we know about gum disease. Scientists found that Fusobacterium nucleatum (a bacterium common in gum disease) can travel through the bloodstream to breast tissue, where it has been proven to cause DNA damage and accelerate tumor growth in laboratory research.
The effect was particularly pronounced in people with BRCA1 gene mutations, though the findings raise broader questions about oral bacteria and cancer risk for everyone. Researchers were clear that this is emerging science, not a cause for alarm. Even so, it’s a compelling reason to stay on top of gum health.
Gum disease is preventable. Regular cleanings remove the built-up bacteria that create the conditions for these problems to develop. If it’s been a while since your last visit, there’s no better time to come in.
