How Often Should You Really Replace a Toothbrush? (More Often Than You Think!)
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We get it — toothbrushes aren’t always top of mind. But using an old, worn-out brush is like cleaning your windows with a muddy rag.
It looks like you’re doing the job… but are you really?
Let’s talk about when (and why) you should replace your toothbrush — especially when it comes to kids — and how to make it easier to remember.
🕒 The 3-Month Rule (Yes, It’s Real)
According to dentists and the New Zealand Dental Association, you should replace your toothbrush every 3 months — or sooner if the bristles are frayed.
Why?
-Worn bristles don’t clean effectively
-Bacteria can build up in the brush head
-Bristles lose their shape and damage gums
-Kids chew on them (yep, we know)
If someone in your house has been sick — especially with something contagious — you should replace brushes immediately after recovery.
👶 Do Kids Need Their Brushes Replaced More Often?
In many cases… yes.
Kids tend to:
-Brush too hard or not enough
-Chew or bite the brush head
-Drop it (in very questionable places)
-Forget to rinse it properly
-Use it like a paintbrush/weapon/magic wand
That’s why we recommend checking your child’s toothbrush monthly and replacing it at least every 3 months — more often if it’s showing signs of damage or grime.
💡 How to Actually Remember
Here are a few simple tricks:
📅 Set a recurring reminder on your phone every 3 months
🪥 Use colour-coded brushes so you know whose is whose
📦 Stock up in advance — no scrambling when it’s time to swap
💌 Subscribe to Teeny Teeth! Our subscription service delivers new brushes to your door every 3 months — no memory required
🚨 Signs It’s Time for a New Toothbrush
Still unsure? Look for these:
-Bristles are bent or frayed
-The head looks stained or dirty
-There’s an odd smell (yes, this happens)
-Your child was sick recently
-They’ve been “cleaning” the sink with it (it happens)
📦 Skip the Guesswork with a Teeny Teeth Subscription
Our brushes are designed to last the full 3 months — and when they’re due for a replacement, a new one just arrives, like magic ✨
You can:
-Choose brushes for kids, teens, or adults
-Get them every 3 months, hassle-free
-Save money by buying in bundles
-Rest easy knowing everyone’s brush is fresh, clean, and dentist-approved
👉 Check out our subscription options here
Coming Next Week:
“Best Toothbrush for Receding Gums? The Ones That Don’t Cause Them!”
We’ll explore soft bristles, gentle angles, and what to avoid when brushing sensitive gums.