Joybuy Insights

Choosing electric toothbrush heads: how to find the right fit and avoid waste

Choosing a new pack of electric toothbrush heads seems simple, until you discover that not every brush head fits every handle. Oral-B, Oral-B iO and Philips Sonicare use different connections. The bristle firmness, shape and pack size also affect how comfortable and cost-effective your purchase will be.

Common mistakes when buying

1. Looking at the brand name alone

Seeing “Oral-B” or “Sonicare” on the packaging isn’t enough. For example, a standard Oral-B brush head won’t necessarily fit an Oral-B iO handle. The Oral-B iO Ultimate Clean range is specifically designed for iO handles. Conversely, many standard Oral-B brush heads aren’t suitable for iO or Pulsonic models.

Most models within the Philips Sonicare system are widely compatible, but always check the model number. Look out for codes such as HX9094/88, HX9044/87, HX6014/87 or HX6016/87.

2. Choosing a cheap multipack without calculating how long it will last

A pack of 4, 6 or 8 may look like good value, but only if the brush heads suit your handle and how you’ll use them. Most of the selected products recommend replacing the heads after three months, or sooner if the bristles are bent, worn or coming loose.

A pack of 6 could last one person around a year and a half. With several people in the household, a 6-pack of brush heads will be used up sooner. An 8-pack of brush heads can be practical for families, as long as all the heads are designed for the same type of handle.

3. Treating cleaning claims as a guarantee

Brands sometimes quote percentages for plaque removal, gum care or stain removal. These figures come from the brand’s product information and aren’t a universal guarantee for every user. For example, Philips mentions claims about plaque and stain removal for certain Sonicare models in its own research or product information. Use this information to compare products, rather than as a medical promise.

Important specifications to check

Compatibility and connection

First, check your handle type:

  • Oral-B Pro, Smart and Genius: often compatible with standard round Oral-B brush heads.
  • Oral-B iO: only use brush heads explicitly labelled for iO.
  • Philips Sonicare: check the HX model and compatibility list.
  • Children’s models: choose a small brush head with an age recommendation.

An original brush head will usually have a clear brand name, model number and compatibility information. If you’re buying compatible replacement heads, pay extra attention to the connection, brush head size and information about materials and safety.

Softness and shape

Adult brush heads include round Oral-B heads and oval Philips Sonicare heads. The shape affects how you move the brush along your teeth, but it doesn’t determine on its own which head is right for you.

If you’re looking for brush heads for sensitive teeth, consider soft or extra-soft bristles. According to the product information, the Oral-B iO Gentle Care has soft bristles and a gentle outer ring. Philips Sonicare A3 features soft bristles and flexible rubber sides. If you experience persistent irritation, pain or bleeding, stop using the brush head and consult a dentist.

Replacement indicator and care

Some electric toothbrush heads have fading bristles to remind you when it’s time for a replacement. On various Oral-B models, the indicator bristles change from green to yellow or from blue to white. Philips Sonicare models may also have fading replacement bristles.

Rinse the brush head after use, leave it to dry upright and don’t share it with others. Don’t use a brush head with damaged or badly bent bristles. The recommended three-month replacement interval is a guideline; heavy use or visible wear may mean you need to replace it sooner.

Our picks for different types of users

Suited to: Budget-conscious beginners
ORAL-B Pro Deep Cleaning Original toothbrush heads, 6 pack

ORAL-B Pro Deep Cleaning - Original Toothbrush Heads, 6 pack

Why it suits this profile: This pack contains six original Oral-B brush heads for adults. It’s a good choice if you’re looking for a familiar round brush head.

How this product avoids the pitfall

The brand, compatibility with Oral-B handles and three-month replacement interval are all clearly stated.

Key benefit & highlights

Six per pack, with a round shape and designed for adults.

Suited to: Shoppers looking for premium quality
Philips Sonicare A3 Premium All-in-One, 4 pack

Philips Sonicare A3 Premium All-in-One, 4 pack

Why it suits this profile: A good choice for Sonicare users looking for a gentle brush head with several features, including longer bristles and flexible sides.

How this product avoids the pitfall

The product listing specifies the Sonicare system, model number HX9094/88, soft bristles and a three-month replacement interval.

Key benefit & highlights

Four original Philips Sonicare brush heads with soft bristles and flexible rubber sides.

Suited to: Specific needs & frequent users
Oral-B iO Gentle Care brush heads, 8 pack

ORAL-B iO Gentle Care, 8 pack

Why it suits this profile: This set is designed for Oral-B iO users who want soft bristles and like to keep several replacement heads on hand.

How this product avoids the pitfall

The listing clearly states that these brush heads are only designed for Oral-B iO handles, reducing the risk of choosing the wrong connection.

Key benefit & highlights

Eight brush heads, soft bristles and a replacement indicator.

Looking for more options?

We’ve put together a complete, up-to-date list of products that meet these strict selection criteria and current European safety regulations.

Frequently asked questions about brush heads

How often should I replace a brush head?

Many manufacturers recommend replacing it every three months. Replace it sooner if the bristles splay, bend or come loose. A replacement indicator can help, but check the brush head yourself too.

Do Oral-B brush heads fit all electric toothbrushes?

No. Standard Oral-B brush heads aren’t designed for Oral-B iO, Pulsonic or Philips Sonicare. Always check your handle model and the compatibility information. iO models in particular need a specific iO brush head.

Are soft brush heads suitable for children?

For children, choose a small brush head with a clear age recommendation, such as Oral-B Kids for children aged 3 and over, or Philips Sonicare For Kids for the stated age group. Supervise children, don’t let them bite the brush head and keep loose brush heads out of reach of young children.