Personal Care & Accessories

How to Clean an Oral-B iO Electric Toothbrush

Oral-B iO toothbrushes collect diluted toothpaste in two less-visible places: inside the lower opening of the round brush head and around the top of the magnetic-drive handle. If those areas are rinsed only while assembled, residue can dry into a ring and interfere with easy head removal. Oral-B directs users to rinse the operating head, separate the head and handle, run water through both mating areas, wipe the pieces dry and store them upright. The charger needs its own unplugged cleaning path rather than immersion. This guide covers iO Series handles, standard iO replacement heads and common magnetic chargers; accessories such as the iO Sense display or powered travel case should follow their individual manual.

Published 2026-08-31 · Updated 2026-08-31

Primary reference: Oral-B official iO electric-toothbrush cleaning guide. Always check the manual for your exact model.

Quick reference

After brushing: Rinse while running, switch off and pull the head straight away.
Deep clean: Flush inside the head and around the handle's top opening.
Charger: Unplug, wipe with a damp cloth and dry before reconnecting.
Avoid: Charger immersion, scraping seals, dishwasher heat and wet storage.
Ready when: Head, handle and charger are dry and the head seats without force.

What you will need

The instruction booklet for the exact Oral-B iO series
Clean running water
Soft lint-free cloths or plain paper towel
A soft damp cloth for the unplugged charger
A ventilated upright toothbrush stand
A soft brush reserved for removable non-electrical holders if needed

Step-by-step instructions

Step 1: Rinse immediately after brushing

With the iO still running, hold the brush head under clean running water so toothpaste is flushed from the bristles and neck. Keep the stream moderate and point it away from the display. Switch the handle off before removing the head.

Step 2: Pull the head straight off

Grip the plastic neck, not the bristles, and pull the head in line with the drive shaft. Do not twist aggressively or use a tool beneath the head. If paste has dried at the joint, wet the area briefly and work the head loose with straight, controlled pressure.

Step 3: Flush the head from both directions

Rinse the bristles, outer neck and opening at the bottom of the brush head. Let water run through the interior so foamy residue exits rather than remaining around the metal drive connection. Shake out water without striking the head against the sink.

Step 4: Clean the handle top and body

Run water over the top of the handle and around the drive shaft as Oral-B directs, then wipe the display, buttons, grip and bottom with a clean cloth. Do not insert pins beneath the top seal or use abrasive powder on the screen and glossy surfaces.

Step 5: Dry and store the two pieces separately

Wipe the handle and brush head dry, paying attention to the head opening and handle top. Store both upright with room for air movement. Immediately enclosing a wet head in a travel cap or pushing it back onto a damp handle can preserve the residue the rinse was meant to remove.

Step 6: Clean the magnetic charger

Unplug the charger. Wipe its top, sides and cord with a damp cloth, lifting away dried rings instead of scraping them. Oral-B identifies its charger as water-resistant on applicable iO guides, but it should not be completely submerged. Dry it before reconnecting power.

Step 7: Treat accessories according to their design

Empty removable head holders and wipe their accessible surfaces. For an iO Sense charger, powered travel case or display accessory, use the individual accessory paragraph in the booklet. Do not assume a washable brush handle makes a charging accessory washable in the same way.

Step 8: Inspect before the next use

Confirm that the drive shaft is straight, the top seal is intact and the dry head slides on and off without force. Replace a brush head with splayed bristles, a cracked neck or looseness at the drive connection. Stop using a charger with a damaged cord or liquid trapped inside.

Specific cleaning questions

Open a question for a concise answer about stains, odors, safety, frequency, and troubleshooting.

Should the iO brush head be removed after every use?

Oral-B directs users to detach the head and clean the head and handle separately, then wipe and air-dry them.

Can water run over the top of an Oral-B iO handle?

Yes, official cleaning guidance tells users to rinse the handle top and head opening, then wipe the parts dry.

Can I submerge the iO charger?

No. Unplug and wipe it. Applicable iO chargers are water-resistant, but Oral-B says not to completely submerge them.

Why is there white buildup below the brush head?

Dried toothpaste and mineral residue collect at the joint. Separate and flush both mating areas after brushing.

Can an iO brush head go in the dishwasher?

No. Rinse it under running water and air-dry it; dishwasher heat and detergent are not the official method.

Can I use bleach or alcohol on the handle?

Routine iO care uses water and a clean cloth. Harsh chemicals are unnecessary and may affect seals or finishes.

How should I clean the iO Sense charger?

Use the separate accessory instructions for the exact Sense charger rather than applying the handle-rinsing method to it.

When should the brush head be replaced?

Replace at the recommended interval or earlier when bristles splay, the neck cracks or the head no longer locks securely.