The Most Common Brushing Mistakes Parents Make (And How to Fix Them)
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Brushing your child’s teeth might seem straightforward, but many parents unknowingly make mistakes that can affect their child’s oral health. These common brushing errors can lead to cavities, gum problems, and frustrated kids — but the good news is, most are easy to fix!
In this guide, we’ll cover the most common brushing mistakes parents make, why they matter, and practical tips to help you and your child get brushing right every time.
1. Brushing Too Hard
Why it’s a mistake:
Many parents think scrubbing harder cleans better — but brushing too hard can damage delicate gums and tooth enamel.
How to fix it:
Use a soft-bristled toothbrush (like our gentle 3-sided kids brush!) and apply gentle pressure. Let the bristles do the work — a light circular motion is best.
For more, see the New Zealand Dental Association (ADA) guidelines on brushing.
2. Not Brushing Long Enough
Why it’s a mistake:
Most kids (and adults!) don’t brush for the recommended 2 minutes, leaving plaque behind.
How to fix it:
Use a timer or play a 2-minute song to make brushing fun and ensure the full time is spent. Our toothbrush subscription can help by keeping brushes fresh and exciting for kids!
Check out the Colgate site’s advice on brushing duration.
3. Missing Hard-to-Reach Areas
Why it’s a mistake:
Plaque loves to hide between back molars and along the gum line — spots that are easy to skip.
How to fix it:
Guide your child’s toothbrush around every surface — front, back, and chewing surfaces. Encourage small, gentle strokes and remind them to clean the tongue too.
4. Using the Wrong Toothbrush Size or Type
Why it’s a mistake:
Using an adult brush or one that’s too big can make brushing uncomfortable and ineffective for kids.
How to fix it:
Choose age-appropriate brushes designed for little mouths. Our 3-sided toothbrush for kids is specially designed for easier, faster cleaning that kids love.
Learn more about toothbrush types at the NZ Dental Association.
5. Not Replacing Toothbrushes Often Enough
Why it’s a mistake:
Worn-out toothbrushes don’t clean well and can harbor bacteria.
How to fix it:
Replace your child’s toothbrush every 3 months or sooner if it looks worn or after illness. Our hassle-free subscription service delivers fresh brushes right on time.
The Mayo Clinic recommends replacing toothbrushes every 3-4 months.
6. Skipping Brushing Before Bedtime
Why it’s a mistake:
Nighttime brushing is crucial because saliva production decreases during sleep, allowing plaque to build up.
How to fix it:
Make brushing before bed non-negotiable. Try fun routines or rewards to build this healthy habit.
See the CDC’s oral health tips for more.
7. Letting Kids Brush Alone Too Early
Why it’s a mistake:
Children under 7 often lack the dexterity to brush effectively on their own.
How to fix it:
Supervise and assist brushing until your child can demonstrate good technique. Use brushing games to make it a fun, shared activity.
Learn about children’s brushing skills at AAPD.org.
8. Using Too Much or Too Little Toothpaste
Why it’s a mistake:
Using too much toothpaste can lead to swallowing excess fluoride; too little may not clean effectively.
How to fix it:
For kids under 3, use a smear about the size of a grain of rice. For ages 3–6, use a pea-sized amount.
The American Academy of Pediatrics (AAP) explains toothpaste guidelines.
Final Thoughts
Brushing mistakes are easy to fix, and small improvements can make a big difference in your child’s oral health and their attitude toward brushing. Use gentle pressure, brush for a full 2 minutes, choose the right toothbrush, and keep the routine consistent.
Ready to try a toothbrush designed to make brushing easy and fun? Check out our Teeny Teeth 3-sided toothbrush for kids — built to help parents and kids get brushing right every time.