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Reviewed by Susan Volk, RDH, BURST Ambassador — with Pete Volk — Last updated August 19, 2026
Short answer: Replace your BURST toothbrush head every 3 months, or sooner if the bristles look splayed or flattened. Heads are handle-specific — Pro 2.0, Original, Curve, Nova, and Kids each use their own head — so make sure you’re buying the one that matches your handle.
Specifically designed with charcoal-infused angled bristles, BURST toothbrush heads are built to reach the hard-to-reach areas of your mouth — but only while the bristles are actually in good shape. Here’s how to know when it’s time, how to swap the head safely, and which replacement head fits which BURST handle.
How Do You Know It’s Time? The Test Susan Uses With Patients
“I tell patients not to just guess by the calendar — look at the brush head,” says Susan Volk, RDH. “Fresh bristles stand up straight in even rows. Once they start splaying outward or lying flat, they can’t reach the gumline the way they’re designed to, no matter how strong the motor still is.”
That’s the same visual test dental professionals use chairside: stand the brush head up and look at it head-on. Straight, even bristles are still doing their job. Bristles that fan outward or flatten against the base have lost their cleaning angle, even if the toothbrush itself still runs at full strength.
Why Worn Bristles Actually Matter
According to BURST, its toothbrush heads and electric motor have been clinically shown to remove up to 91% more plaque than a manual toothbrush.* That number assumes bristles that are still doing their job. Flattened or splayed bristles reduce actual contact with the tooth surface and gumline — the motor keeps running at full strength, but less of that vibration reaches your teeth the way it’s supposed to.
A Note From Pete
“I’ll be the first to admit I’m not the dental professional in this house,” says Pete Volk. “My system is simple: I listen to my wife. When Susan tells me the bristles are looking worn, I change the head. That’s really the whole strategy, and it works.”
Which BURST Head Fits Your Handle
BURST replacement heads are handle-specific — a head made for one BURST toothbrush won’t fit a different handle. Make sure you’re ordering the head that matches the toothbrush you actually own:
- Pro 2.0 — see our Pro 2.0 review
- Original Sonic Toothbrush — what changed with the Pro 2.0
- Curve — the ortho patient’s guide to the Curve
- Nova — is the Nova a real toothbrush or a backup?
- BURSTkids — the BURSTkids lineup
How to Change the BURST Toothbrush Head
Replace your BURST Sonic Toothbrush head by removing the current head from the base of the brush, then popping on the new one. To do it without damaging the brush:
- Grasp the large part of the toothbrush firmly with one hand and hold the brush head with the other.
- Pull the brush head off straight. Bending or twisting it can damage the metal prong or the internal mechanism.
- Open the package for the replacement head.
- Line up the flat part of the metal prong with the flat part of the new brush head, and push together until it’s seated.
- A small gap between the head and the brush base is normal — it lets the head vibrate.
- Remove the head regularly to rinse the area underneath. This clears out toothpaste and saliva buildup over time.
How Often to Replace It
BURST — and dental professionals generally — recommend changing the brush head every three months. Change it sooner if the bristles look frayed or damaged, which can happen if you tend to press hard while brushing. (Pressing harder doesn’t clean better — bristles need room to vibrate, so keep even, light pressure on the tooth and gum surface.) It’s also worth changing your head if you’ve been sick, so you’re not reintroducing anything to a fresh mouth.
If remembering the 3-month mark is the hard part rather than the swap itself, a replacement-head subscription matched to that cycle solves it — see why toothbrush heads wear out faster than you think for more on that.
Where to Buy BURST Replacement Heads
You can read our BURST Ambassador review here on the site and then use Coupon Code: ZNZXWM to get 25% off your BURST Electric Toothbrush or replacement head purchase! Disclosure: we earn a commission when you use this code.
*Compared to a manual toothbrush, brushing twice daily in whitening mode for two minutes for a period of just 15 days. Data on file with BURST Oral Care.
Frequently Asked Questions
How often should I replace my BURST toothbrush head?
Every 3 months, or sooner if the bristles are visibly splayed or flattened.
Do BURST heads fit other toothbrush handles?
No. BURST heads are handle-specific — Pro, Original, Curve, Nova, and Kids each use their own matching head.
How do I know it’s time, without just guessing by the calendar?
Stand the head up and look at the bristles head-on. Straight, even rows mean it’s still working properly; bristles that splay outward or lie flat have lost their cleaning angle and should be replaced.
Is there a discount code for BURST replacement heads?
Yes — Susan’s Ambassador code ZNZXWM gets you 25% off at burstoralcare.com.