Dental Discoveries: New Bacteria Linked to Tooth Decay

Since modern dental care is highly effective, you may think science learned about all the causes of cavities ages ago. However, a recent finding reveals that this view isn’t quite right. Scientists have now discovered new bacteria linked to tooth decay, so you’ll need to update your dental knowledge a bit. Your Indianapolis dentist is here to make sure that happens. To that end, here’s a primer on the new bacterial discovery and some ways to prevent cavities.

What Did We Already Know?

Of course, this new scientific finding didn’t come out of nowhere. We already knew certain bacteria could cause teeth to decay.

The prior view was that only one type of bacteria – Streptococcus mutans – decayed teeth. Until recently, scientists believed this strain was the leading cause of cavities; it’d cling to teeth, erode enamel, etc. The other known 700+ strains were thought to be blameless; they were supposedly benign microbes living on your teeth, tongue, and gum pockets.

What Do We Know Now?

As it turns out, Streptococcus mutans isn’t the only bacterial culprit behind tooth decay. Research over the last few years has shown that another bacterium can also cause cavities.

The main conclusion comes from researchers at the universities of Pennsylvania and North Carolina. In a 2023 study, they found that Selenomonas sputigena – a distinct bacterial strain – also decays teeth. It was even noted to amplify Streptococcus mutans’ ability to cause cavities. As such, both types of bacteria working together can do more harm than either could alone.

How Can You Prevent Tooth Decay?

Given that several kinds of bacteria can decay teeth, it’s crucial that you work hard to prevent cavities. Do so by using the following tips:

• Practice Good Oral Hygiene – To remove tooth-decaying bacteria from your smile, remember to brush twice daily, floss once daily, and rinse often.
• Reduce Your Sugar Intake – Do your best to avoid sweets and treats, as sugar attracts harmful oral bacteria. If possible, eat “mouth-healthy” foods like lean proteins and leafy greens instead.
• Get Enough Water – Water washes out the food debris and plaque in your mouth, so drink plenty of it every day.
• See Your Dentist Often –  Attend dental checkups and cleanings every six months. Through these frequent visits, your dentist can detect and treat the early signs of tooth decay.

New bacteria are now linked to tooth decay, but that doesn’t make oral care hopeless. Keep looking after your smile and see your dental provider for help!

About the Practice

Martinez Dentistry is based in Indianapolis, IN. Led by Drs. Corey Martinez and Bond Harman, our practice offers honest and trustworthy dental care. We won’t “upsell” you procedures you don’t need, as our team will only address your true oral issues. That means your whole family can trust us to help your grins thrive for life! For more details or to book a visit, please contact us on our website or by phone at (317)-846-3431.