Mouthguards for Teen Athletes: Types, Fit and Care

This guide covers how to choose, fit, clean and replace a mouthguard for teen athletes, written for parents and other adults who look after a young player. It walks through the main types, what to expect with braces, and the signs that mean a dentist should take a look. The aim is realistic expectations rather than a perfect product.

What a mouthguard is for, and what families often get wrong

A mouthguard is a soft protective appliance that sits over the upper teeth during sport. Dental organizations commonly advise wearing one in contact and collision sports, and in any activity where a fall, ball or elbow could meet the face. Many families treat it as optional for sports that seem gentle, or assume a teen who has never been hurt does not need one.

The other common mistake is thinking any mouthguard is fine regardless of fit. A guard that is too loose gets spat out, chewed or left in the bag, which defeats the purpose. A guard that is bulky enough to make breathing or speaking hard tends to be abandoned. Comfort is not a luxury here; it decides whether the guard is ever worn.

Related reading on the product itself: this mouthguard guide.

Practical first steps, and when to call a dentist

Start by listing the sports your teen plays and whether they wear braces or a retainer. Then compare the main options: ready-made stock guards, boil-and-bite guards, and custom guards made through a dentist. Try the guard on at home, check that it stays put without clenching, and make rinsing it after each use a routine.

Brushing twice a day with fluoride toothpaste and cleaning between the teeth daily still matter, because a guard does not replace them. Book a dentist visit for a tooth that is chipped, loose or sore after a knock, for bleeding gums that do not settle, for swelling, or if the guard hurts or rubs. Teen growth can change fit quickly, so ask the dental team to check it at regular visits.

Guides in this series

Guide / Nov 2, 2026 / 2 min read

Stock vs Boil-and-Bite

For most teens the real choice in stock vs boil and bite comes down to fit: a stock guard is ready to wear but often loose, while a boil-and-bite guard is shaped to the teeth at home and.

Guide / Oct 25, 2026 / 2 min read

Custom Mouthguards: The Basics

A custom mouthguard is made from an impression or scan of your teen's own teeth, usually through a dentist, so it can follow the exact shape of the mouth.

Guide / Oct 20, 2026 / 2 min read

Mouthguards With Braces

A braces mouthguard has to fit over brackets and wires without pressing on them or rubbing the cheeks and lips, and a regular off-the-shelf guard often cannot do that comfortably.

Guide / Oct 12, 2026 / 3 min read

Cleaning a Mouthguard

Cleaning a mouthguard takes about a minute after each use: rinse it, brush it gently with a soft toothbrush and mild soap, let it dry fully, and keep it in a ventilated case.

Guide / Oct 7, 2026 / 2 min read

Replacing a Mouthguard

Replacing mouthguards is a routine part of teen sports because teeth, jaws and braces change while the guard wears down.

Common questions

Does my teen really need a mouthguard for non-contact sports?

It depends on the sport and the risk of falls or stray contact. Dental organizations commonly advise a guard wherever the mouth could be hit, and a dentist can help you judge your teen's particular activities.

Which type should I buy first?

Many families start with a boil-and-bite guard for a better fit than stock, then move to a custom guard if the teen plays regularly, wears braces or finds other types uncomfortable. Our first three guides compare these options.

What if my teen says the guard is uncomfortable?

Discomfort is the usual reason guards end up unused, so take it seriously. Check the fit, try refitting a boil-and-bite guard if the instructions allow it, and ask a dentist if rubbing, pain or sore spots continue.