Autobrush® Adults

Brush head size guide

Pick the correct brush head size based on the user's age, or you can base it on the actual size of the user's mouth. Refer to our size chart to find the best fit. To measure the size of your mouth, you can use dental floss to determine the right size for you. Our AutoBrush Pro Brush Heads are designed to have the following measurements.

Adult small brush heads

Brush head measures 49mm from front to back and 75mm across at the widest point.

measurements for adult regular brush heads

Adult regular brush heads

Brush head measures 53mm from front to back and 77mm across at the widest point.

measurements for adult regular brush heads

Adult XL brush heads

Brush head measures 59mm from front to back and 77mm across at the widest point.

measurements for adult XL brush heads

Still unsure? We’re happy to help!

Our team is here to answer all your questions on sizing or product features. Just contact us at customercare@autobrush.com

Fluoride vs Nano-HAp

What is the difference between Fluoride and Nano-HAp?

Fluoride and Nano-Hydroxyapatite (Nano-HAp) both enhance dental health effectively. Fluoride is renowned for its ability to strengthen tooth enamel and prevent cavities. Nano-HAp offers a similar benefit as a fluoride-free alternative, perfect for those who prefer it, and is especially safe for children who might swallow toothpaste.

Learn more about Fluoride and Nano-HAp in our blog.

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colorful Autobrush kids and adults toothbrushes.

Our Mission

Autobrush was created to get high quality innovative dental care into every home. We are continuously investing in new technologies to radically disrupt, change and improve the dental care industry.

We are proud to be the original electric toothbrush that cleans and whitens teeth using LED blue light technology. It's designed for everyday whitening as part of your brushing routine, offering 360-degree coverage to help clean in just seconds with our patented technology and design.

A word from our founder...

Autobrush was founded with one question in mind. How can we evolve a task we all do that has seen little change for centuries? When we embarked on our journey to solve this question, I collaborated with extraordinary individuals that could propel our autobrush to mainstream audiences and turn a idea into a reality.

Fast forward through a year of design, trial and error, we found that the Autobrush was not only a product wanted by consumers but that it was becoming a potential ally to parents in assisting them to encourage consistent brushing habits with their children. When we started to receive feedback from parents and users with disabilities, I started to believe our autobrush could change the world of brushing forever. It had become bigger than business.

The autobrush® Difference

Proof it Works

Our clinical studies proves autobrush is up to 5.1X more effective at removing plaque from the entire mouth compared to a traditional toothbrush.

Simple Technique

Helps minimizes brushing mistakes

Loved by All Ages

Kiddos love the quirky animal characters and funky jungle tunes. Adults love the ease and simplicity. Older adults love the opportunity to regain independence.

2-in-1 Cleaning + Whitening

Whitening made simple! Pair autobrush® Advanced Whitening Toothpaste with our whitening blue LED light simultaneously brush and whiten.

Ideal for Sensitive Gums

Our carefully angled, gentle bristles and soothing red LED lights aim to clean around the gum line and target bacteria while minimizing discomfort or irritation.

Environmentally Responsible

We’re passionate about reducing our carbon footprint! We use only environmentally friendly packaging, and we’re constantly working on ways to improve our environmental impact.

Makes Brushing Fun

“The autobrush for Kids really takes the chore out of brushing. I think this is great for all children because it makes brushing super fun. It's a great motivator. It can also be really good for those with special needs or sensory issues.”

Kelly Hancock

Registered Dental Hygienist

“We've tried all versions of autobrush and this is the best. I've been following this brand for a long time since I first heard about them a few years ago. Saw the ups and downs and positive and negative reviews and I've been waiting for a brush head with nylon bristles. Now they have one and it's been worth the wait! I whip this thing around in my mouth for thirty seconds and I get that nice clean feeling on my teeth.”

David B

from New York

Why autobrush

Over 6 years of engineering & development

First of its kind

We’ve developed and refined 5 generations of Autobrushes, each one optimized for comfort and delivering an unparalleled 360º clean for adults and kids.

Developed with you in mind

We designed the Autobrush for brushers of all shapes and sizes, but especially for kids and adults with mobility limitations and sensory sensitivities. Every feature is designed with our community in mind.

Backed by experts and data

It’s the only ADA-approved u-brush for a reason. Four separate, independent clinical trials have shown thatthe Autobrush removes more plaque than both manual and electric brushes — even in hard-to-reach places.

Frequently Asked Questions

Got questions? We've got answers! Check out our full customer care center for more info

Is autobrush ADA accepted?

Yes! Autobrush is the world’s only ADA-Accepted U-shape toothbrush, clinically proven to deliver up to 5.1x better cleaning in just 30 seconds, removing up to 82% more plaque and reducing gingivitis by up to 45%.

Trusted by families, backed by experts, and validated through independent clinical studies at Salus Research, an ADA-accredited facility.

*Based on clinical data conducted at Salus Research.

Why Do Some Dentists Say “U-Shaped Brushes Don’t Work”?

It’s a common misunderstanding! Most dentists have only seen cheap look-alike U-shaped brushes and not Autobrush.

Autobrush is the only ADA-Accepted U-shaped toothbrush with patented nylon bristles (not silicone) and five clinical studies proving its effectiveness.

Our studies show measurable improvements in plaque removal and gum health that knockoffs simply can’t match.

👉 Read our full clinical study results

Why Are Other U-Shaped Brushes on Amazon Cheaper?

Because they cut corners.
Independent clinical testing found that silicone-bristle knockoffs cleaned worse than not brushing at all, leaving plaque and bacteria behind.
In contrast, Autobrush’s patented nylon bristles are clinically proven to remove plaque up to 5.1× better and reduce gingivitis by up to 45% across multiple IRB-approved studies. 

They’re cheaper for a reason. We’re effective for one.
(And yes, Autobrush runs great sales, so stay subscribed to email/text for exclusive deals!)

Are There Clinical Studies to Prove Autobrush Works?

Absolutely, and we’re proud of them!
Autobrush is the only ADA-Accepted U-shape toothbrush backed by five independent clinical studies (and counting).
Our research shows Autobrush outperforms traditional manual brushing in both plaque removal and gum health improvement. 

👉 View our Clinical Study Results

How Do I Find the Right Brush Head Size?

Finding your perfect fit is key to a great clean.

Choose based on your age group or mouth size using our simple Size Chart, or contact our team anytime for personal help.

If it still doesn’t fit quite right, no worries, we’ve got a Perfect Fit Promise: If it’s not a good fit, we’ll fix it for free.

Is Autobrush Good for People with Disabilities?

Yes. Autobrush is a game-changer for users with disabilities, limited mobility, or sensory sensitivities.

It’s been praised by families of individuals with autism, cerebral palsy, muscular dystrophy, and others, helping users brush independently and confidently.

How effective is autobrush on the gum line?

In a clinical study by Salus Research (ADA-accredited), Autobrush users experienced:

  • Up to 45% reduction in gingivitis after 30 days
  • Up to 5.1× better plaque removal overall than a manual toothbrush
  • Up to 71% plaque reduction along the gum line in a single use, compared to only 3.5% for a manual brush. Read the study here

In a head-to-head comparison with a leading ADA-accepted electric toothbrush, Autobrush achieved:

  • 29% plaque reduction along the gum line, versus 10.5% with the electric brush
    Read the study here

These findings show that Autobrush cleans as effectively, or better, in the areas most critical for gum health, while requiring ¼ of the brushing time. 

Is Autobrush Waterproof?

Yes! Autobrush is IPX7 waterproof, meaning it’s safe for use in the shower or while rinsing under running water.

Just avoid submerging it for extended periods.

How Does Autobrush Clean the Backs of My Teeth?

Our patented brush head design surrounds every tooth: front, back, and biting surfaces.

Thousands of nylon bristles pulsate simultaneously to remove plaque from all angles.

For best results, keep the brush moving gently in a side-to-side or figure-8 motion throughout the 30-second cycle.

This ensures every tooth gets the perfect clean, even those tricky back ones!

Does Autobrush Work with Braces or Dental Work?

Yes! Autobrush is safe for braces, retainers, and other dental work.

The soft nylon bristles gently clean around brackets and wires without causing damage.

Just remember to move the brush slightly during the cycle to reach every surface.

(Always check with your orthodontist for personalized care guidance.)

Can I Use My Own Toothpaste?

Of course! You can use your favorite toothpaste with Autobrush.

Our foam toothpaste just makes things smoother (literally). It’s designed to spread evenly and reach every surface.

If using regular toothpaste, try pre-foaming or mixing it with a little water before brushing, which helps distribute it evenly.

How Often Should I Replace My Brush Head?

Every 2 months, just like a regular toothbrush.

This keeps your Autobrush performing at its best and ensures your bristles stay clean and effective.

Tip: Subscribe for automatic brush head refills so you never forget.

What Are Your Customer Happiness Policies?

We’ve got you covered 💙

  • 30-day money-back guarantee
  • Lifetime warranty (while subscribed)
  • Hassle-free returns
  • Free shipping on orders $99+

Will This Make My Kid Lazy?

Nope, quite the opposite!

Autobrush encourages independence, not laziness.

It turns brushing into something fun, empowering kids to take charge of their routines while getting a clinically proven clean every time.

Is Autobrush Completely Hands-Free?

Not exactly, and that’s a good thing.

Autobrush must be guided with gentle motion to clean effectively. Hold it lightly and move your jaw side-to-side or in a figure-8 motion. Leaving it still will *not* produce a proper clean.

The motion helps the brush’s vibrations do their best work, especially along the gum line and back teeth.