Protection Changes Over Time
Your custom-fit mouthguard is built to match your teeth, but it still wears down over time. Regular use, chewing, impact, heat, and improper storage can all affect how it fits and performs.
If your mouthguard feels loose, looks damaged, smells bad, or has become uncomfortable, it may no longer be giving you the protection you need.
Quick Check
Your mouthguard should:
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Stay in place securely
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Feel smooth and comfortable
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Have no cracks or tears
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Be easy to clean
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Feel like it still fits your teeth properly
If it fails any of these checks, it is probably time for a replacement.
Replace Your Mouthguard If...
It feels loose
Your mouthguard should stay in place without needing to bite down. If it slips, shifts, or feels less secure than it used to, the fit may be compromised.
It has deep bite marks
Some wear is normal, but deep grooves, thinning spots, or heavy chew marks can reduce the guard’s ability to protect your teeth.
It has cracks, tears, or rough edges
Visible damage means the material is breaking down. A cracked or torn mouthguard should be replaced before your next season or contact-heavy use.
It smells bad even after cleaning
If odor does not go away after proper cleaning, bacteria may be trapped in the material. That is a clear sign it is time for a new guard.
It feels uncomfortable
A custom-fit guard should feel natural. If it starts rubbing, pinching, or bothering you during play, the fit may no longer be right.
It no longer feels like your original fit
Your guard should feel snug and consistent every time you wear it. If it feels different than when you first got it, replacement is worth considering.
How Long Does a Custom-Fit Mouthguard Last?
Most athletes should replace their custom-fit mouthguard every season.
You may need to replace it sooner if you chew on it, use it frequently, play contact sports, or notice changes in fit, comfort, smell, or structure.
Keep Your Protection at Its Best Keep Your Protection at Its Best
Replace your custom-fit mouthguard when it feels loose, shows damage, smells bad, or no longer feels comfortable. A fresh custom-fit guard helps keep your protection consistent every time you play.
