The Oral-B iO Series 9 takes the Oral-B iO Advanced Clean Brush Heads as its brush head; replace it every 3 months; Australian sellers list it from A$8.55 as of 5 October 2026. Fitment confirmed against the manufacturer's compatibility list.
Your electric toothbrush
Oral-B iO Series 9
Electric toothbrush
Confirmed against Oral-B's listConfirmed against Oral-B Australia's compatibility list
Not yours? ChangeSave it · remind me every 3 months
Takes the iO Advanced Clean brush head
iO Advanced Clean Brush Heads · replace every 3 months · check the code on your old part before ordering.
Your electric toothbrush
Electric toothbrush
Confirmed against Oral-B's listConfirmed against Oral-B Australia's compatibility list
Takes the iO Advanced Clean
Brush head · every 3 months · check the code on your old part.
Other Oral-B electric toothbrushes that take the iO Advanced Clean
GenuineGenuine Oral-B
$8.55 each
2-pack $17.10
Amazon AU · 5 OctLowest genuine · Amazon AU · checked 5 Oct
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by Oral-B. Compatible: another brand. Check certification on the seller's page.Genuine is made by Oral-B. Compatible is made by another brand. Check the seller's certification details before choosing.
Lowest price · $8.55 each · 2-pack $17.10
Amazon AU. Every seller we track is listed below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Compare 4 sellers
AUD, before delivery. Each price shows when it was checked.
Genuine Oral-B
4 sellers
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How long it lasts
Usually every 3 months. The filter light is a reminder, not a water-quality sensor.
Not due yet?
Get a nudge when your filter is due — it's every 3 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the brush head in your Oral-B iO Series 9
Watch the guide or follow the steps.
- 1Pull the old brush head straight off the handle's metal shaft — no twisting.
- 2Push the new head on until it stops; a small gap between head and handle is normal.
- 3Change heads every 3 months, or as soon as the blue indicator bristles fade to white.
Every number this part goes by
- Retail name:
- iO Advanced Clean
- Retail name:
- Oral-B iO Advanced Clean
- Replaces:
- iO Ultimate Clean
- Replaces:
- Oral-B iO Ultimate Clean
Sellers list any of these; they are the same part.
About your Oral-B iO Series 9
Oral-B electric toothbrush, electric toothbrush — iO. Its brush head is the iO Advanced Clean Brush Heads, part iO Advanced Clean, changed every 3 months.
Also in this electric toothbrush: Oral-B iO Clean & Gum Protect Brush Heads (every 3 months), Oral-B iO Radiant White Brush Heads (every 3 months), Oral-B iO Braces & Orthodontic Brush Heads (every 3 months).
Where the model number is: Look at the underside of the handle or the charger base: iO handles are marked iO with the series number; other handles carry the range name (Vitality, Pro, Smart, Genius) on the body.
Fits these 7 Oral-B models
Common questions
- Which brush head fits the Oral-B iO Series 9?
- The Oral-B iO Series 9 takes the Oral-B iO Advanced Clean Brush Heads (part iO Advanced Clean).
- How often should I replace the brush head in my Oral-B iO Series 9?
- Every 3 months, or sooner if it looks worn.
- Where can I buy the iO Advanced Clean in Australia?
- We track 4 Australian sellers for the iO Advanced Clean; the lowest listed price when we last checked was A$8.55 at Amazon AU. Prices are re-checked daily and dated on this page.
- How do I fit the iO Advanced Clean in a Oral-B iO Series 9?
- No tools, a few minutes: 3 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- Splayed bristles clean less and can hurt gums; the indicator bristles fade to show it is due.
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