New Research Points to a Smarter Approach to Oral Health: Support the Good Bacteria, Too

For years, oral care has focused on removing bacteria. New research is adding another idea to the conversation: supporting a healthier balance of bacteria in the mouth.

Your mouth is home to a complex community of bacteria known as the oral microbiome. Some of these bacteria are associated with oral health, while others can contribute to problems when the microbial community becomes unbalanced.

That's why researchers are increasingly looking beyond simply eliminating bacteria—and asking how we can help create an oral environment where beneficial bacteria can thrive.

A Different Way to Think About Dental Plaque

Recent research highlighted by the University of Minnesota explored how bacteria within dental plaque communicate with one another through chemical signals.

Researchers found that by interfering with certain bacterial signals, they could shift the plaque community toward bacteria more associated with oral health. Rather than trying to eliminate the entire bacterial population, the approach focused on influencing which bacteria were able to thrive.

It's an important distinction.

A healthy mouth isn't a bacteria-free mouth. Balance matters.

Clean Is Important. But What Comes Next?

Brushing and flossing remain essential parts of a healthy oral care routine. They help disrupt plaque and remove bacteria from teeth and along the gumline.

But bacteria naturally begin returning after you clean.

That's where thinking about the oral microbiome adds another dimension to daily oral care.

Instead of focusing only on removing bacteria, what if your routine also considered the beneficial bacteria you want in your mouth?

Brush + Floss → Clean

ProBiora® → Repopulate

Where ProBiora Fits In

This research did not study ProBiora® or probiotics, and the mechanism researchers investigated is different from probiotic supplementation. But the broader focus on microbial balance closely aligns with the science behind ProBiora.

ProBiora contains ProBiora3®, a patented blend of three beneficial bacterial strains—S. oralis KJ3®, S. uberis KJ2® and S. rattus JH145®—isolated from and specifically selected for healthy human teeth and gums.

Taken after brushing and flossing, ProBiora provides beneficial bacteria back to the oral environment, including the surfaces of teeth and along the gumline.

It's a simple addition to the traditional oral care routine:

Clean. Then repopulate.

The Oral Microbiome Is Changing the Conversation

As researchers continue to learn more about the oral microbiome, oral health is becoming about more than simply asking:

“How do we remove bacteria?”

We're also beginning to ask:

“How do we support a healthier balance of bacteria?”

That's a shift we're excited to see.

Because when it comes to your daily oral care routine, clean matters—but so does what comes next.

The University of Minnesota research discussed above did not evaluate ProBiora®, ProBiora3® or probiotic supplementation.

References

Peer-Reviewed Research
Sikdar R, Beauclaire MV, Herzberg MC, Lima BP, Elias MH. N-acyl homoserine lactone signaling modulates bacterial community associated with human dental plaque. npj Biofilms and Microbiomes. 2025;11:204. doi:10.1038/s41522-025-00846-z.

Related News Coverage
ScienceDaily. New approach to gum disease could replace antibiotics with precision treatment. October 6, 2026. Based on research from the University of Minnesota.