Xiaomi Mijia T100: How to Use an Electric Toothbrush

The Xiaomi Mijia T100 is not just a gadget for oral hygiene, but a real assistant in the fight for healthy teeth and gums. Thanks to ultrasonic technology, five cleaning modes and a built-in timer, it beats conventional manual brushes in efficiency by 3-5 times. However, many users make mistakes when they use it first, which reduces the benefit of the device or even harms enamel.

In this article, we will learn how to set up the Mijia T100 correctly, which modes to choose for different tasks, how to care for the brush so that it lasts longer, and why cleaning techniques are more important than you think. You will learn how to avoid typical mistakes (such as excessive tooth pressure) and make the most of the capabilities of Xiaomi’s smart brush.

Package and preparation for first use

Before you first turn on, check that the box with the Xiaomi Mijia T100 contains all the necessary elements.

• 🪥 The toothbrush itself with built-in battery
• 🔋 Charging base (wireless, with magnetic fastening)
• 🔄 Replacement brush nozzle (usually model) T100-B)
• 📄 Short instructions in several languages (including Russian)
• 🔌 Power adapter (sold separately in some regions)

First thing you do is charge your brush, even if the light shows a partial charge.

1. Install the brush on the charging base so that the contacts on the bottom of the case coincide with the magnets.
2. Connect the base to the socket through the adapter (voltage 5V/1A).
3. Wait until the charging indicator lights up green (full charge takes ~12 hours).

⚠️ Note: Do not use power adapters with higher voltage 5V — This can damage the brush battery. Xiaomi's original adapter is labeled MDY-08-EQ.

While the brush is charging, wash the nozzle under warm water and treat it with an antiseptic (e.g. 0.05% Chlorhexidine) that will remove the factory lubricant and germs. Also check if the nozzle is tightly fixed to the shaft - it should snap with a slight click.

How to turn on and switch cleaning modes

The Xiaomi Mijia T100 features five modes of operation, which are characterized by vibration intensity and purpose, switching between them with a single button, either a short or a long press.

To turn on the brush, press the button once. To switch modes, hold the button 1-2 seconds until the indicator changes color. The brush remembers the last selected mode and turns on it the next time you use it.

Important: White regimen is not recommended to be used more than 2 times a week - intense vibrations can thin the enamel with regular use.

Rinse your mouth with water | Apply toothpaste (pea size) |Select the appropriate mode |Make sure the brush is charged (the indicator does not flash red) |Start with the back teeth, gradually moving to the front-->

Teeth cleaning technique: how to hold a brush and move it

Even the most advanced brush can't save you from tooth decay if you brush your teeth wrong. With the Mijia T100, the technique is different from the manual brush: you don't have to push or make circular movements. You just need to touch lightly and move slowly along each tooth.

Follow this algorithm:

1. Inclination angle: Keep the brush at an angle of 45° to the gum line. The bristles should touch both the teeth and the gums.
2. Move the brush slowly from the gums to the edge of the tooth (for the upper jaw - from top to bottom - from bottom to top).
3. Time to Tooth: Hold on to each tooth for 2-3 seconds. The brush itself makes 8,800-10,000 microvibrations per minute - your task is only to guide it.
4. Sequence: Start with the outer surface of your teeth, then move to the inner surface, and at the end, clean the chewing surfaces.

The built-in timer in the Mijia T100 signals every 30 seconds, a reminder to change the cleaning zone, and the full cycle takes 2 minutes, after which the brush automatically turns off.

⚠️ Attention: If you feel pain or bleeding gums, switch to Soft mode immediately and reduce pressure. If you experience symptoms again, see your dentist - this may be a sign of gingivitis.

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For better whitening, use a paste with an abrasive RDA of 70–100 (e.g. SPLAT Whitening Plus) in White mode, but no more than 1 time every 3 days.

How to care for a brush: cleaning, charging, storage

The life of the Xiaomi Mijia T100 depends not only on the build quality, but also on the proper care.

• 💧 After each use, wash the nozzle under running water and shake off the excess moisture. Do not use hot water - it deforms the bristles.
• 🧼 Disinfect the nozzle once a week in an ultraviolet sterilizer or soak in a solution of hydrogen peroxide (3%) for 15 minutes.
• 🔋 Charge the brush every 3-4 weeks (with daily use 2 times a day). ~30 purges.
• 🚫 Do not store the brush in closed cases immediately after use - moisture promotes the reproduction of bacteria.

To replace the nozzle, pull it down with force - it will be removed with a characteristic click. Install the new nozzle to the end until you hear a fixing sound. The manufacturer recommends changing the nozzle every 3 months, but when used intensively (for example, in White mode) - every 2 months.

Synchronization with a smartphone: the possibilities of the Mi Home application

Xiaomi Mijia T100 supports connection to the Mi Home app (available for Android and iOS).

• 📊 Track cleaning statistics (time, modes, zone coverage)
• 🔔 Receive reminders about replacing the nozzle
• 🔄 Update the brush firmware (if new features are available)
• 👨‍👩‍👧‍👦 Create profiles for different family members

To connect the brush:

1. Install the Mi Home app from the App Store or Google Play.
2. Sign up or sign in to your Xiaomi account.
3. Click Add Device → Toothbrush → Mijia T100.
4. Turn on Bluetooth on your phone and hold the button on the brush for 5 seconds until the indicator starts flashing blue and red.

After syncing, the app will have a control panel with a history of cleaning, for example, you can see that you missed cleaning last night or pressed your teeth too hard in Clean mode.

⚠️ Warning: If the brush doesn't connect to the phone, upgrade the Mi Home to the latest version and reboot Bluetooth. iPhone may need to allow notifications access to the app.

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Synchronizing with a smartphone is not necessary for the brush to work, but helps to control the quality of hygiene.Without connecting, the Mijia T100 runs offline with the same features.

Common User Mistakes and How to Avoid Them

Even experienced electric brush users sometimes make mistakes that negate the benefits of the Mijia T100.

• 🚫 Pressing too much: The brush cleans its teeth, so you don't have to press it, and it causes the enamel to wear off and the gums to bleed.
• ⏱️ Not enough time: Many stop cleaning before 2 minutes have passed.The timer in the brush is set to dentists' recommendations - don't ignore it.
• 🔄 Use one mode: For example, continuous cleaning in White mode harms your teeth. Alternate regimes depending on the task.
• 🦠 Wet storage: Closed cases without ventilation are a breeding ground for bacteria. Store your brush upright outdoors.

Another mistake is to use abrasive pastes (with RDA > 100) in aggressive modes, which quickly erase enamel, and the best option is pastes with RDA 30–70 (for example, SPLAT Professional or President Classic).

If you notice that your gums are sore or your teeth are sensitive to cold/hot, you're making one of these mistakes. Go back to Soft mode and review the technique.

Comparison with other Xiaomi models: which is better?

The Mijia T100 isn’t the only toothbrush in Xiaomi’s lineup, but to see if it’s right for you, let’s compare it to other popular models:

The Mijia T100 beats the T300 in terms of modes and cleaning type, but it loses the Oclean W10 in smart features (like a pressure sensor).If you want a basic but high-quality ultrasonic brush without overpaying for bells and whistles, the T100 is the best choice.

For those willing to pay more for personalization (for example, adjusting the intensity of vibration for themselves), it is worth considering the Oclean X Pro. And if the budget is limited, the Mijia T300 will cope with the main tasks, albeit without ultrasound.

FAQ: Answers to Frequent Questions