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Prevention, Hygiene & Lifestyle

Sports mouthguards

A custom-fitted guard is the cheapest dental insurance in sport.

✓ Clinician-reviewedReviewed June 20262 min read
Illustration: Sports mouthguards
Who
Any contact or collision sport
Best type
Custom-fitted
Chemist guards
Loose fit, limited protection
Kids
Re-check fit as they grow

Overview

A blow to the mouth can chip, loosen or knock out teeth, and fixing a single knocked-out front tooth can mean decades of maintenance. A well-fitted mouthguard absorbs and spreads impact, protecting teeth, lips and jaws — and it only works if it is actually worn, including at training.

Custom-fitted guards made from a scan or mould of your teeth fit snugly, let you speak and breathe normally, and stay in place on impact. Boil-and-bite guards from the chemist are better than nothing, but they fit loosely, get chewed out of shape and can dislodge exactly when you need them. Dental associations consistently recommend custom-fitted guards for any contact or collision sport.

Children in contact sports need their guards checked (and usually remade) as their teeth and jaws grow.

What to know

  • Protects against chipped, loosened and knocked-out teeth, and lip injuries
  • Custom-fitted guards outperform boil-and-bite guards for fit and protection
  • Must be worn at training, not just on game day
  • Children's guards need regular refitting as teeth erupt
  • Mouthguards also reduce the severity of some jaw injuries

Caring for it

  • Rinse after use and clean with cold water and a soft brush — hot water warps it
  • Store dry in its ventilated case, away from heat and pets
  • Bring it to check-ups so we can check the fit
  • Replace it when it is distorted, split, or no longer fits snugly

Common questions

Are chemist boil-and-bite guards good enough?
They are better than nothing, but they fit loosely, thin out where you bite hardest, and can dislodge on impact. For any regular contact sport, a custom-fitted guard is a worthwhile investment in avoiding far more expensive injuries.
Which sports need a mouthguard?
Anything with deliberate or likely contact: football codes, hockey, boxing and martial arts, basketball, netball — and skateboarding or scootering for kids. If in doubt, wear one.
My child has braces — can they still wear one?
Yes, and they should: a blow against brackets cuts lips badly. Guards can be made to fit over braces and adjusted as teeth move.
How long does a custom guard last?
Adults often get several seasons from one guard. Children usually need a new one each season or two while teeth are erupting and jaws are growing.
Dr Rick Iskandar · Reviewed June 2026
Every page is written and reviewed by practising clinicians.
Dr Rick Iskandar · Reviewed June 2026 · Sources: Australian Dental Association, specialty college guidance
✓ Clinician-reviewed

General information — not a substitute for personal advice from your dental team. Please discuss your individual situation with your dentist.

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