| Quick Answer: A mouthguard should fit snugly over the upper teeth, stay put without being held, and let your child breathe and talk fairly normally. Stock guards are cheapest but bulky; boil-and-bite guards mold to the teeth for a better fit; a custom guard from your pediatric dentist offers the best fit, comfort, and protection. Re-check the fit as your child grows. |
Summer sports season is here, and a good mouthguard is the simplest way to protect your young athlete’s teeth. But a guard only works if it fits. At Desert Valley Pediatric Dentistry in Avondale, our pediatric dentists put together this parent’s guide to getting the fit right.
Why Fit Matters So Much
A mouthguard that doesn’t fit won’t get worn — and a guard left in the bag protects nothing. A proper fit means it stays securely in place during play, cushions a blow effectively, and is comfortable enough that your child keeps it in. Fit is what turns a mouthguard from gear into real protection.
The Three Types
| Type | Fit | Best for |
|---|---|---|
| Stock | Pre-formed, not adjustable | Lowest cost; bulky, least secure |
| Boil-and-bite | Softened in hot water, molded to teeth | Good value with a decent fit |
| Custom | Made by your dentist from a mold | Best fit, comfort, and protection |
How to Fit a Boil-and-Bite Guard
- Heat water as directed and let it cool slightly so it won’t burn.
- Soften the guard in the hot water for the time on the package.
- Place it over the upper teeth and bite down gently, then press the lips and use fingers to mold it to the teeth.
- Move it to cold water to set, then check the fit — repeat if needed (most can be re-softened).
Signs of a Good Fit
- Stays in place without being held or clenched
- Covers the upper teeth snugly and comfortably
- Lets your child breathe and talk fairly normally
- Doesn’t cause gagging or fall loose during movement
When to Choose Custom — and Re-Check the Fit
For kids in contact sports, those who play often, or anyone wearing braces, a custom mouthguard is worth it for the superior fit and protection. And because children’s mouths change quickly — especially while losing baby teeth — re-check the fit each season and replace a guard that’s become loose or worn. Regular preventive visits are a good time to have us check it.
Visit Desert Valley Pediatric Dentistry in Avondale
Before summer leagues hit full swing, our pediatric dental practice in Avondale can fit your child for a custom mouthguard and make sure it’s comfortable and protective. We accept AHCCCS and most plans — stop in and keep your young athlete’s smile safe.
Frequently Asked Questions
How should a kids’ mouthguard fit?
Snugly over the upper teeth, staying in place without being held, while letting your child breathe and talk fairly normally and without gagging.
What’s the best type of mouthguard for kids?
A custom mouthguard from your pediatric dentist offers the best fit and protection. Boil-and-bite guards are a good-value middle option; stock guards are bulky and least secure.
How do I fit a boil-and-bite mouthguard?
Soften it in hot (not boiling-hot) water, place it over the upper teeth, bite gently and mold it with your lips and fingers, then set it in cold water and check the fit.
Does my child need a custom mouthguard?
For contact sports, frequent play, or kids with braces, custom is worth it for the superior fit and protection. Otherwise a well-fitted boil-and-bite guard can work.
How often should I replace a kids’ mouthguard?
Re-check the fit each season and replace it when it becomes loose, worn, or no longer fits — children’s mouths change quickly, especially while losing baby teeth.
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Gearing up a young athlete? We truly care about your child’s health and happiness. Reach out to get your child’s appointment scheduled. We can’t wait to see you. Desert Valley Pediatric Dentistry │ 13075 W McDowell Rd, Suite D-100, Avondale, AZ 85392 │ (623) 322-8999 │ Contact Us → |