Custom Mouthguards: The Basics
Short answer. 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. A custom mouthguard is often worth discussing for braces, frequent contact sport or repeated comfort problems with off-the-shelf guards.
- A custom guard is made from an impression or scan of your teen's teeth, not shaped at home.
- It generally fits more closely and is easier to wear and talk in.
- It usually costs more in time and effort than an off-the-shelf guard, so ask your dental office what to expect.
- Growing teens may outgrow one, so ask about checking the fit.
What makes a guard custom
Instead of softening a ready-made shape at home, a dental office takes an impression or digital scan of the teeth, and a guard is then made to match it. The result follows the contours of your teen's mouth rather than approximating them.
Because the fit is closer, a custom guard usually stays in place without clenching and tends to be thinner where it can be. That comfort is the practical advantage: a teen is more likely to wear a guard that does not interfere with breathing or speech.
Who should consider one
A custom guard is worth raising with a dentist if your teen wears braces or has other dental work, plays a collision sport regularly, has a mouth that is changing, or has tried stock and boil-and-bite guards without finding one that is comfortable.
It is not a requirement for every teen. A well-fitted boil-and-bite guard suits many casual players. The question is whether the guard will actually be worn, and whether a closer fit would help.
What the dental visit usually involves
Expect a short appointment for the impression or scan, then a wait while the guard is made, followed by a fitting where the dentist checks it in the mouth. Ask how many visits are needed and whether the office adjusts the fit if something rubs.
Mention the sports your teen plays, any braces or retainers, and any history of dental injury. Ask the office for its own advice on thickness and on how often to recheck the fit, rather than relying on a general rule.
Questions worth asking before you book
Practical questions help you compare options without guesswork. Ask how long the guard is expected to last for a growing teen, what happens if it needs adjusting, and how the office wants you to clean and store it.
Ask also what to do after a blow to the mouth. Most dentists want to see a chipped, loose or painful tooth quickly, and knowing the office's emergency arrangements ahead of time saves stress later.
- How many visits will the guard need?
- What happens if it rubs or feels loose?
- How long might it fit while my teen is growing?
- How should we clean and store it?
- Who do we call after an injury?
Questions readers ask
Does a custom guard need replacing as my teen grows?
It can, because growing mouths change. A dentist can check the fit at regular visits and tell you if it no longer sits properly.
Is a custom guard always more comfortable?
Often it is, because it follows the shape of the teeth, but comfort still varies. If it rubs or feels wrong, tell the dental office and ask for an adjustment.
Can my teen wear a custom guard with a retainer?
Do not assume so. Ask the dentist, because retainers and guards are different appliances and the office can tell you what suits your teen.
Talk to a professional. Persistent bleeding, pain, swelling, loose teeth or sores that do not heal need a dentist's attention, not a supplement.