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Buying new Oral-B replacement brush heads may seem straightforward at first. However, a similar product name does not automatically mean that the brush head will fit your existing handle. Mix-ups are particularly common when an iO model is confused with a classic Oral-B Pro brush head, or when the bristle firmness does not suit your personal needs.
Larger multipacks are not always the most economical option either: if brush heads are used by just one person, an 8- or 10-pack could sit in the cupboard for several years. The key factors when choosing are therefore compatibility, bristle characteristics, replacement interval and price per head.
Oral-B iO replacement brush heads are designed exclusively for iO-series handles. Classic Oral-B brush heads such as Oral-B Pro CrossAction, on the other hand, fit many rechargeable Oral-B models, but not iO or Pulsonic handles.
That is why a note saying “Oral-B brush head compatible” is not enough. What matters is the specific toothbrush model family. Before buying, check the model name on the handle or charging station.
Soft brush heads may feel more comfortable if you have sensitive gums. However, they are not a substitute for dental advice and are not a treatment. Claims such as “for sensitive gums” primarily describe the bristle construction and the intended level of comfort during use.
If your gums continue to bleed, or if you experience pain or irritation, stop using the product and seek dental advice.
An Oral-B pack of 4, pack of 6 or pack of 8 brush heads may make sense depending on the size of your household. For one person, four heads provide roughly a year’s supply if changed at the recommended intervals. In a family with several users, a larger pack will be used up more quickly.
For a fair comparison, calculate the price per brush head. Storage conditions should also be taken into account: brush heads should be stored somewhere dry and clean, and kept out of the reach of young children.
First check which toothbrush you have:
An original Oral-B brush head should fit onto the handle without unusual force and click securely into place. If the head does not fit properly, it should not be used.
Round Oral-B brush heads surround each individual tooth and differ in their bristle arrangement and firmness. On CrossAction models, for example, the bristles are positioned at an angle. iO Ultimate Clean variants also use precisely aligned bristles, while Gentle Care models feature a softer bristle area and a cushioned outer ring.
For everyday selection:
Many Oral-B brush heads feature colour-changing indicator bristles. The fading colour serves as a visible reminder to replace the head. Product information often recommends changing the head roughly every three months, or sooner if the bristles become frayed, bent or loose.
Actual service life depends on how often the head is used, the pressure applied and how well it is cared for. Rinse the head after each use and allow it to air-dry. Brush heads should not be shared between several people.
Why this product suits this profile: The pack of 4 offers an easy way to get started and is suitable for adults with a compatible Oral-B Pro handle.
The product information explicitly states compatibility with rechargeable Oral-B models, excluding iO and Pulsonic.
Angled, X-shaped bristles and a visible replacement indicator.
Why this product suits this profile: This iO-specific brush head is designed for users looking for a precisely fitting construction with a round shape and 16-degree bristle arrangement.
The product description specifies exclusive use with Oral-B iO handles, preventing confusion with Pro heads.
Bristle-in-bristle construction, angled bristles and a colour-change replacement indicator.
Why this product suits this profile: A pack of 8 is suitable for regular users or households wanting a longer-lasting supply, as well as those who prefer a softer option.
The soft bristles and cushioned outer ring are clearly stated in the product details, while compatibility is explicitly limited to iO models.
Up to 4,000 soft bristles according to the product information, plus a pack size containing eight heads.
Why this product suits this profile: The small, round shape and extra-soft bristles are designed for Oral-B Kids handles and children aged 3 and over.
The recommended age and compatibility are listed separately. This makes it easier to choose than adult brush heads.
Extra-soft bristles, a compact round brush head and a Disney design.
We have put together a complete, regularly updated list of products that fully meet these strict selection criteria and the safety regulations applicable in the EU.
Product information often recommends changing them roughly every three months. Replacing them sooner is advisable if the bristles become frayed, bent or loose. A colour-change replacement indicator can also serve as a useful guide.
No. Oral-B iO replacement brush heads are designed for iO handles. Pro CrossAction, Sensitive Clean and 3D White heads generally fit many classic rechargeable Oral-B models, but not iO or Pulsonic. Check the specific handle before placing your order.
For one person, a pack of 4 can provide roughly a year’s supply if the heads are changed every three months. A pack of 6 or 8 is more suitable for frequent users or families. As well as the total price, always compare the price per head, and only choose a pack if it will be used within a reasonable period.