Looking After Your Little Athlete’s Teeth

By Andy Gunning

If you have a sporty child, you’ll already know how much they ask of their bodies. Between school, training sessions, matches, swimming lessons, running clubs and weekend tournaments, many children are exercising far more than we ever did. That’s a wonderful thing — but it does bring a few challenges, especially when it comes to teeth. This is something I’ve become increasingly aware of both trying to fuel 2 very active kids myself and helping coach their rugby team. Watching gumshield’s rattling in mouths as they play and fending off the constant requests for snacks.

Two of the biggest challenges?
Impact and sugar.

Let’s talk about both.

Why Gumshields Matter (And Why Fit Is Everything)

If your child plays any kind of contact sport — rugby, hockey, football, martial arts, — a gumshield isn’t optional. It’s one of the most important bits of kit they own.

A properly fitted gumshield:

Absorbs impact
Protects the front teeth, lips and jaw
Reduces the risk of fractures and knocked-out teeth

But here’s the key: a badly fitting gumshield offers far less protection.

The “boil-and-bite” ones from sports shops are better than nothing, but they’re often bulky, uncomfortable and don’t stay in place well — which means kids chew them, spit them out or don’t wear them at all.

A custom-made dental gumshield is:

Made from a scan or impression of your child’s teeth
Thinner and more comfortable
Much better at staying in place
Far more protective

For active kids, that comfort and fit makes all the difference — especially when they’re training hard or competing.

Why Sporty Kids Need Sugar

Here’s the tricky part.

Active children need fuel. Their brains need glucose to concentrate at school. Their bodies need carbohydrates to grow, recover and perform. When kids train or play sport, they burn through energy fast.

That’s why:

They need slow-release carbs (like oats, rice, pasta, potatoes)
And they also need fast carbs for quick energy (like fruit, smoothies, sports snacks, gels, drinks)

And yes — fast carbs usually mean sugar, whether it’s natural (fruit, honey) or added (sports drinks, bars, sweets).

So we don’t want to say “no sugar”.
We want to say “use sugar smartly.”

The Problem for Teeth

Every time sugar hits the teeth, the bacteria in the mouth produce acid. That acid attacks the enamel for about 30–60 minutes.

Sporty kids tend to:

Sip sports drinks
Snack little and often
Eat fruit, bars and gels throughout the day
Train after school, then eat again

This can mean their teeth are under acid attack for hours at a time — even if they brush well.

That’s why we often see:

Early enamel wear
White spots
Sensitivity
Decay in very fit, healthy kids

How to Protect Teeth While Still Fueling Performance

Here’s the good news: you don’t have to choose between performance and teeth.

A few simple habits make a huge difference:

1. Keep sugar “in blocks”, not drips

Try to give sugary foods and drinks with meals or in one go, rather than constantly grazing.
For example:

A sports drink during training ✔
Sipping it slowly all afternoon ✖

2. Rinse, don’t brush, straight after

After sport or sugary snacks:

Rinse with water
Or use sugar-free gum to stimulate saliva

Don’t brush for at least 30 minutes, as enamel is softer after acid exposure.

3. Use fluoride daily

Fluoride strengthens enamel and helps it resist acid.

Brush twice daily with fluoride toothpaste
Ask us about fluoride application at your next visit. We routinely use this.

4. Watch the drinks

Water should be the main drink.
Sports drinks should be:

Used for training and competition
Not sipped all day long

5. Regular check-ups for sporty kids

Active children often need:

More frequent monitoring
Early prevention (like fluoride varnish)
Advice tailored to their training schedule

Strong Bodies, Strong Smiles

We love seeing kids active, confident and thriving. Sport builds resilience, friendships and physical health — and we would never want teeth to get in the way of that.

With the right gumshield, smart fuelling, and a few protective habits, your child can enjoy the best of both worlds:
a strong, growing body — and a healthy smile.

If your child plays sport and you’d like advice on gumshields, fluoride protection or fuelling without damaging teeth, just ask. We’re always happy to help.