If you’ve ever wondered whether upgrading to an electric toothbrush is actually worth it, you’re not alone.
Most people think about plaque and whitening. But what you’re really doing is shaping the community of bacteria in your mouth, also known as your oral microbiome.
This ecosystem of bacteria in your mouth plays a major role in everything from cavities to gum disease to bad breath.
So we wanted to find out, does using an electric toothbrush lead to a healthier oral microbiome?
We ran a study to find out.
Our Findings
We compared the results from Bristle Oral Microbiome Test takers to see if an electric or manual toothbrush led to healthier mouths.
Here's what we found:
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People using electric toothbrushes had more beneficial bacteria
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This was true across age, sex, and even people with gum disease
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The biggest benefits showed up in people who brush twice a day
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Younger users (under 30) also saw less bad breath–causing bacteria
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If you only brush once a day, we saw similar, worse oral microbiome health scores
Why This Matters
To understand these results, you need to understand what’s actually happening in your mouth every day.
Your oral microbiome is a constant competition between beneficial bacteria and harmful bacteria.
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Beneficial bacteria help keep us healthy. They compete with harmful species and help prevent inflammation. They also help with digestion, and produce molecules like nitric oxide that helps regulate our blood pressure.
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Harmful bacteria, when allowed to grow unchecked, drive cavities, gum disease, and bad breath - and are even associated with a growing number of systemic health conditions, like heart disease and diabetes.
The difference between a healthy mouth and disease isn’t whether bacteria are present. It’s about which bacteria are in control.
What Brushing Is Really Doing
Bacteria in your mouth like to build protection for themselves, like shelters, in communities called biofilm (what we know as plaque).
Plaque is like a protective shield that harmful bacteria build around themselves.
If that biofilm stays intact, it hardens into tartar and it allows harmful bacteria to grow and take over, and becomes very difficult to remove without your dentist.
Brushing works by breaking up that structure. When you disrupt the biofilm these bacteria lose their protection, and beneficial bacteria are able to take their place instead.
Where Electric Toothbrushes Fit In
This is where electric toothbrushes may have an advantage. Electric toothbrushes generally remove plaque more evenly and consistently, resulting in more effective biofilm disruption.
That consistency is likely a key reason we see improvements in microbiome balance.
A Simple Way to Upgrade Your Routine
If you’re considering switching, we've partnered with our friends at Quip to make it easier than ever.
Quip’s newer electric toothbrushes, like the Ultra™ Lite Sonic Electric Toothbrush, offer professional-level performance at a more accessible price point (<$100).
Key features include:
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Sonic vibrations for effective plaque disruption
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Built-in timers to guide proper brushing time
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Sleek, simple design that makes it easier to stay consistent
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Smart features that help track and improve your routine over time
Exclusive Offer for Bristle Readers
Quip is offering 20% off sitewide for Bristle readers through 4/28/2026. Just use code BRISTLE20 at checkout at getquip.com
If you’re looking for an easy upgrade that can improve how consistently and effectively you brush, it’s a strong place to start.
