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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WHY DENTAL HYGIENISTS ARE SWITCHING
Most toothbrushes were never built for your whole mouth
You've probably blamed yourself. Blamed your technique. Bought a second toothbrush, then a third.
But here's the part most brush brands don't say out loud: manual and standard electric brushes are built for the front of your mouth. Straight bristles on a straight handle. Great for what's easy to reach — not so great for everywhere else.
If you're still missing the back molars and the gum line after two minutes of scrubbing, that's not a discipline problem.
It's not you, it's your toothbrush.
CLEAN BETTER TONIGHT
Manual brushes were built for the front of your mouth
That's not a flaw, it's the design. A flat, straight brush head works fine on flat, straight surfaces. But teeth aren't flat, and your back molars aren't easy to reach with a stick and some bristles.
For the front of your smile, that's fine. For everywhere else, it's working against you.
Misses the back molars
A straight brush head can't wrap around the curve of your mouth, so the hardest-to-reach spots get skipped, night after night.
Leaves the gum line untouched
Most manual brushing barely grazes where the tooth meets the gum — exactly where plaque and gingivitis build up.
Depends on perfect technique
Two minutes, the right angle, the right pressure, every side. It's a lot to get right twice a day, every day.
You don't need to brush harder — you need the right brush
If you're missing spots, it's not a discipline problem. It's a tooling problem.
When your brush actually reaches every surface:
- You stop missing the back molars
- You stop guessing if you brushed long enough
- You stop fighting sore wrists and bleeding gums
Backed by Clinical Results
Up to 5.1x
Better whole-mouth clean vs. manual brushing
Up to 82%
More plaque removed in hard-to-reach areas
Up to 45%
Reduction in gingivitis after 30 days
*Based on clinical studies conducted at Salus, an ADA-accredited research facility.
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