Electric toothbrush brush head · Philips Sonicare
Philips Sonicare C2 Optimal Plaque Defense 3 x (formerly ProResults plaque control) (HX9023/67)
- Replace every 3 months
- Fits inside the fridge
- Fits 16 models
The C2 Optimal Plaque Defence head, three per pack. Fits every Philips Sonicare click-on handle; Philips lists the exact ranges. Change every three months.
- Pack
- 3 C2 Optimal Plaque Defense
- Change
- Every 3 months (Philips)
- Not for
- Philips One and Essence handles
Every number this part goes by
- Retail name:
- C2 Optimal Plaque Defense
- Retail name:
- HX9023
Where to buy
Every seller we track for this part, cheapest first. Genuine is the manufacturer's own part; compatible is a third-party filter made to fit. Prices are re-checked daily where the seller publishes them. Last checked 1 August 2026.
How long it lasts
Replace every 3 months — the appliance's filter light tells you when.
Flow slows and taste drops off as the filter fills up. Changing on time is the whole point of the filter.
Not due yet?
This filter is due every 3 months. We'll email you when it's time — free, no spam.
Fitting it
A few minutes, no tools. Watch it done, then follow the steps.
- 1Pull the old brush head straight off the handle's metal shaft.
- 2Line the front of the new head up with the front of the handle and push it on until it clicks.
- 3Change heads every 3 months; BrushSync handles light up their replacement reminder when a smart head is due.
Will it fit your appliance?
Type your model number and we'll check it against our fitment database.
Fits these models
Philips Sonicare16 models
- 2 Series plaque control (brush head)
- 2 Series plaque defense (brush head)
- 3 Series gum health (brush head)
- DiamondClean (brush head)
- DiamondClean Smart (brush head)
- EasyClean (brush head)
- Essence+ (brush head)
- FlexCare (brush head)
- FlexCare Platinum (brush head)
- FlexCare Platinum Connected (brush head)
- FlexCare+ (brush head)
- HealthyWhite (brush head)
- HealthyWhite+ (brush head)
- PowerUp (brush head)
- ProtectiveClean (brush head)
- Sonicare for Kids (brush head)
Every Philips Sonicare click-on brush head fits every click-on handle; Philips lists them all for this range, so pick the head by what you want it to do.
Common questions
- Which brush head fits the Philips Sonicare HX9023/67?
- The Philips Sonicare HX9023/67 takes the Philips Sonicare C2 Optimal Plaque Defense 3 x (formerly ProResults plaque control) (HX9023/67) (part HX9023/67).
- How often should I replace the brush head in my Philips Sonicare HX9023/67?
- Every 3 months, or sooner if it looks worn.
- Where can I buy the HX9023/67 in Australia?
- We track 1 Australian seller for the HX9023/67; the lowest listed price when we last checked was A$39.95 at genuine_oem. Prices are re-checked daily and dated on this page.
- How do I fit the HX9023/67 in a Philips Sonicare HX9023/67?
- No tools, a few minutes: 3 steps, listed on this page with the replacement video where the maker has one.
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