Two-Minute Brushing Timer

How long should you brush your teeth?

Brush for two minutes, twice a day, with a fluoride toothpaste. That's the American Dental Association's advice, and the NHS in the UK says the same. Two minutes feels longer than it is. Without a timer, it's easy to stop early and skip the back teeth.

The NHS suggests brushing last thing before bed, because night-time brushing is important, and at one other time in the day.

How to brush, step by step

The ADA's technique is simple:

1. Angle the brush. Hold the bristles at about 45 degrees to your gums, so they reach where teeth meet gums.
2. Use short, gentle strokes. Move the brush back and forth in short strokes about one tooth wide. Gentle is the key word. You're not scrubbing a floor.
3. Cover every surface. Brush the outer sides, the inner sides and the chewing surfaces of every tooth.
4. Tip the brush for the front teeth. For the inside of your front teeth, hold the brush upright and make several up-and-down strokes.
5. Use a soft-bristled brush. The ADA recommends one.

The tip under the timer changes with each zone, so you get one reminder at a time instead of all five at once.

Why brush in zones?

Splitting your mouth into zones makes sure every part gets its share of the two minutes. The CDC's oral care toolkit for healthcare settings uses the same idea: two minutes, with 30 seconds in each quarter of the mouth, finishing with the tongue.

The timer offers two ways to split it:

Six zones give the front teeth their own slot, which helps if you tend to rush the insides of your front teeth. Four zones are simpler to remember.

"Right" and "left" mean your right and left. The diagram shows your mouth as if you were facing it, so your right side is on the left of the picture.

After you brush

The timer ends with three short reminders:

• Brush your tongue. A few gentle strokes finish the job.
• Spit, don't rinse. The NHS explains that rinsing straight after brushing washes away the concentrated fluoride left by the toothpaste. If you use a fluoride mouthwash, use it at a different time of day, not right after brushing.
• Clean between your teeth once a day. The ADA advises cleaning between your teeth daily. Floss, tape or interdental brushes all work; the NHS says interdental brushes can replace floss. It also says it's best to floss before brushing, so many people do it first and let the timer remind them on the days they forget.

When not to brush

Don't brush straight after a meal. The Oral Health Foundation advises waiting at least one hour after eating, because brushing straight away can wear away tiny bits of enamel. The Sugar Acid-Attack Calculator shows how long your teeth spend under acid attack on a typical day.

Electric or manual toothbrush?

Either works. The ADA says manual and powered brushes are both effective at removing plaque. The NHS agrees, as long as you clean every surface of every tooth with fluoride toothpaste. It adds that some people find an electric brush makes it easier to brush well.

If your electric brush already has a timer, you can still use this page for the zone tips and the streak. Whatever you use, a worn brush cleans less well. The ADA advises replacing it every 3 to 4 months, or sooner if the bristles are frayed. The Toothbrush Replacement Reminder puts that on your calendar.

For children, the Kids Brushing Timer uses the same idea with a friendlier look.

How this tool works

• Timing. The timer counts down 2:00 and divides it evenly: 30 seconds per zone with 4 zones, 20 seconds with 6. It measures real elapsed time, so it stays accurate even if your phone briefly slows the page down.
• The diagram. The zone to brush now is blue, finished zones turn green, and the rest fade.
• Cues. Each zone shows one technique tip, paraphrased from ADA and NHS guidance. The general cue (45-degree angle, short gentle strokes) stays on screen.
• Screen stays on. While the timer runs, the page asks your browser to keep the screen awake (the Screen Wake Lock feature). Some browsers don't support it. If yours doesn't, tap the screen now and then.
• Sound. Sound is off until you turn it on. Then you hear a short beep at each zone change and a chime at the end. Phones that support vibration also buzz.
• Streak. When you finish, tap Add to my streak. Brushing before noon counts as morning; noon onward counts as night, and anything after midnight until 4 AM counts as the night before. "Morning + night" counts days in a row with both. If today isn't finished yet, the streak still counts through yesterday.
• Privacy. Your log is saved only in this browser on this device, in your My Smile data. Nothing is sent anywhere. Clearing your browser data deletes it.
• Offline. Once this page has loaded, the timer needs no internet connection.

The timer can't see how well you brush. Two minutes of gentle, careful brushing beats two minutes of fast scrubbing. If your gums bleed, your teeth are sensitive, or you're not sure your technique is right, ask your dentist or hygienist to watch you brush at your next visit.

Frequently asked questions

Sources

1. American Dental Association. Toothbrushes (Oral Health Topics). updated August 2026. Accessed October 26, 2026.
2. American Dental Association (MouthHealthy). Brushing Your Teeth. Accessed October 26, 2026.
3. NHS. How to keep your teeth clean. reviewed June 30, 2025. Accessed October 26, 2026.
4. Centers for Disease Control and Prevention. Oral Health in Healthcare Settings to Prevent Pneumonia Toolkit. Source of the 30-seconds-per-quadrant split and finishing with the tongue. Accessed October 26, 2026.
5. American Dental Association (MouthHealthy). Toothbrushes. Accessed October 26, 2026.
6. Oral Health Foundation. National Smile Month: Diet and oral health. Accessed October 26, 2026.

Last reviewed October 26, 2026 by the Dental Health Time editorial team, against the sources above. How we review.