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.
Adult regular brush heads
Brush head measures 53mm from front to back and 77mm across at the widest point.
Adult XL brush heads
Brush head measures 59mm from front to back and 77mm across at the widest point.
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
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.
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1. It doesn't feel like brushing, so mornings get easier.
Most kids don’t hate clean teeth, they hate being forced into another chore.
Autobrush changes the experience completely. The 30-second routine feels more like using a fun gadget than standing at the sink being told to “brush longer.”
Less resistance. Less negotiating. Easier mornings for everyone.
2. A reluctant brusher still gets a real clean.
Most brushing battles end with a rushed 20 seconds and nobody wins.
The teeth still get brushed badly, and you both start the day frustrated.
Autobrush's u-shaped design covers every tooth at once, so even a reluctant brusher gets a clinically effective clean.
The fight ends. So does the plaque.
3. It helps kids brush more independently.
One of the hardest parts of brushing is feeling like you have to supervise every second.
Autobrush simplifies the routine by helping clean the areas kids usually miss, making it easier for them to participate more confidently and independently.
4. You finally feel confident they brushed properly.
Cavities are the #1 chronic disease in children.
Autobrush is the only ADA-accepted U-shaped toothbrush, clinically proven to remove up to 82% more plaque than a manual brush.*
That means less guessing, less worrying, and more confidence that brushing is actually getting done properly.
5. When they want to brush, the habit builds itself.
The biggest difference many parents report isn’t just speed, it’s consistency. When brushing feels easier, quicker, and more enjoyable, kids are far more likely to stick with the habit long term without constant reminders.
It's no wonder why dentists recommend it to their patients:
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Dr. Mikaeya Kalantari, Pediatric Dentist
"This is a really great toothbrush to get your kids on the routine of oral care. It makes it fun! It makes it exciting! The angle of the bristles and the more powerful vibrations are really really going to go far into getting the teeth clean."
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Dr. Clara D. Griffey, DDS
“If you have such a struggle getting them (your kids) brushing in the first place, this is a really great option. The music is what got my kids excited about it and love it!"
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Kelly Hancock, RDH
“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."
Not all u-shaped brushes are created equal
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Frequently Asked Questions
Got questions? We've got answers! Check out our full customer care center for more info
Is autobrush ADA accepted?
Why Do Some Dentists Say “U-Shaped Brushes Don’t Work”?
Why Are Other U-Shaped Brushes on Amazon Cheaper?
Are There Clinical Studies to Prove Autobrush Works?
How Do I Find the Right Brush Head Size?
Is Autobrush Good for People with Disabilities?
How effective is autobrush on the gum line?
Is Autobrush Waterproof?
How Does Autobrush Clean the Backs of My Teeth?
Does Autobrush Work with Braces or Dental Work?
Can I Use My Own Toothpaste?
How Often Should I Replace My Brush Head?
What Are Your Customer Happiness Policies?
Will This Make My Kid Lazy?
Is Autobrush Completely Hands-Free?