Plaque detection · On your phone

See the plaque
your brush missed.

Take one photo after you brush. Brushnumber finds leftover plaque tooth by tooth, scores your brushing from 0 to 100, and shows you exactly where to spend more time.

Scans run entirely on your phone. Your photos never leave your device.

How It Works

Three steps to know your teeth

We learn about you, scan your smile, then give advice made for you.

1

Quick Questionnaire

Answer a few simple questions: sensitivity, bleeding gums, braces or aligners, and how you usually brush.

2

Snap a Photo

Follow the on-screen guide and take one photo. On-device AI finds each tooth and any plaque in seconds.

3

Score & Tips

Get your Brush Number, the areas to focus on, and care tips and products matched to you. Track your progress over time.

Brush Number®

One number. Your whole brushing story.

The higher the score, the less plaque left behind. Check after you brush and watch it climb.

91–100

Good

Very little plaque detected. Your brushing coverage is excellent.

81–90

Fair

Minor plaque remains in a few areas. Focus a little more on the gumline.

61–80

Attention

Plaque is noticeable in several areas, especially between teeth and along the gumline.

0–60

Risk

Widespread buildup. With better technique and consistency, most people improve within days.

P

Plaque Control

Plaque is still present. Focus on brushing coverage and consistency first.

G

Gentle Care

Your cleaning is good, but your enamel and gums need extra gentle care.

A

Aesthetic

Your home care is strong. Time to think about whitening, polishing, or alignment.

Zone-by-Zone

Not just a score. It shows you where you missed.

Brushnumber scores three zones of your mouth separately, so your next brush is more targeted.

Gumline

Where teeth meet gums. The most overlooked spot, and the most important for gum health.

Between Teeth

Tight spaces your brush can't easily reach. Floss or a water flosser helps here.

Front Surfaces

The part of your smile everyone sees, and a common place for plaque to build up.

Upper arch · Universal numberingPlaque detected
12345678910111213141516

Illustration. Violet marks plaque, the same way a disclosing tablet would.

Privacy First

Your photos stay on your phone.

Our AI runs right on your device. We only need the results, never a look at your teeth.

  • On-device scanningCapture and analysis happen on your phone. No photo upload required.
  • Only results are syncedBy default we store your score and zone coverage, used for progress tracking and recommendations.
  • Photo sharing is opt-inWant to help improve our model? You can choose to share photos, and change your mind anytime.
Download

Find your Brush Number today

Available for iPhone and Android.

iPhone

From the App Store

Version
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Released
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Requires
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Download on the App Store

Installs and updates through Apple.

Android

Direct APK download

Version
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Released
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Requires
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Download APK

SHA-256 —

FAQ

Questions you might have

Does Brushnumber replace my dentist?

No. Results are a guide for your daily brushing and are not a medical diagnosis. If you have pain, bleeding, or other symptoms, see a dentist, and keep up with regular checkups.

Do I need special equipment or disclosing tablets?

Nope. Just your phone. Follow the in-app guide and scan in good lighting for the best results.

How often should I scan?

At first, scan after every brush to find the spots you tend to miss. Once you've built the habit, a few times a week is enough to track your trend.

Does it work offline?

Yes. Scanning happens on your device, so you get your score without a connection. The questionnaire, recommendations, and history sync need internet.

How are products recommended?

We match your questionnaire answers and scan results (like gumline buildup or sensitivity) to your care needs, and every recommendation explains why.