Custom mouthguards for kids' sports

The honest answer: any mouthguard is better than none for a child playing contact sport, but a custom-fitted mouthguard made from a mould of your child's teeth fits more securely and protects more reliably than a generic boil-and-bite guard from a shop. Because children's mouths change as they grow and lose baby teeth, the fit also needs to be checked and updated over time.

Why do children need a mouthguard for sport?

A mouthguard cushions the teeth, lips and jaw from knocks during sport. Dental injuries in junior sport, such as chipped, knocked-out or pushed-in teeth, are common and can be painful, costly and lasting, especially when an adult front tooth is involved. A mouthguard is one of the simplest ways to reduce that risk in contact and collision sports like rugby, league, AFL, hockey, basketball and martial arts.

What is the difference between custom and boil-and-bite mouthguards?

• Custom-fitted mouthguard: made by the dentist from an impression or scan of your child's teeth. It fits snugly, stays in place, allows easier breathing and talking, and gives more even protection.
• Boil-and-bite mouthguard: bought off the shelf, softened in hot water and bitten into shape. It is cheaper and immediately available, but the fit is less precise, it can feel bulky, and it may dislodge on impact.
• Stock mouthguard: a one-size guard that is not moulded at all and generally fits poorly.

For regular players, and especially once adult front teeth have come through, a custom-fitted guard is usually the better long-term investment in protection.

When should a child's mouthguard be replaced?

Children grow quickly and lose baby teeth, so a guard that fitted last season may be loose or tight now. As a general guide, have the fit checked at your regular dental visits, and expect to replace a custom guard as new teeth come through or if it becomes worn, torn or no longer fits well. A guard that no longer fits properly offers far less protection.

How do I look after a mouthguard?

• Rinse it in cold water (not hot, which can warp it) before and after use.
• Brush it gently with a toothbrush and store it in a ventilated case.
• Keep it out of hot cars and away from direct sun.
• Bring it to dental check-ups so the fit can be reviewed.

Does my child need a mouthguard if they only wear braces?

Children with braces who play sport can benefit from a mouthguard to protect both their teeth and the soft tissues of the lips and cheeks from the brackets. The type of guard suitable for a child in braces is best chosen with your dentist or orthodontist, as the fit needs to account for the appliances and ongoing tooth movement.

Frequently asked questions

Is a custom mouthguard worth it over a cheaper one?

For children who play contact sport regularly, the better fit and protection of a custom guard generally make it worthwhile. For occasional, low-contact activity, a well-fitted boil-and-bite guard may be a reasonable starting point. Your dentist can advise based on the sport and your child's stage of development.

How much does a custom mouthguard cost?

The cost depends on the type of guard, so we will give you a written quote. Some health funds contribute towards mouthguards under extras cover, so it is worth checking your rebate with your fund. See our fees page for general information.

Can my child wear a mouthguard with a removable plate?

Plates are usually taken out for sport and the mouthguard worn instead. Check the specific instructions with the dentist or orthodontist who provided the plate.

At what age should kids start wearing one?

As soon as a child plays contact sport, a mouthguard is worth using, even with baby teeth, to protect the teeth, lips and jaw. The guard is then updated as adult teeth come through.

Protect your child's smile this season

If your child plays sport, a check of their teeth and a properly fitted mouthguard is a smart pre-season step. You can read more on our dentistry for kids page. Book online, call (02) 9649 6468, or click our WhatsApp to chat now: message Berala Dental on WhatsApp.

We review this article periodically so the information stays current for 2026.