How Long Do Night Guards Last?
Average Lifespan of Different Night Guards
While dentists often quote 2 to 5 years for custom acrylic night guards, over-the-counter boil-and-bite models generally last between 1 and 6 months depending on the severity of your grinding [1]. Soft EVA guards tend to wear out the fastest, as heavy bruxers can chew through them in a matter of weeks.
References
- ADA MouthHealthy — Mouthguards (2023). General guidelines for mouthguard replacement and lifespan. PubMed / DOI ↗ (n=1)
⚕️ Medical disclaimer: This content is for informational purposes only and does not constitute medical advice. If your jaw pain persists, please consult a licensed dentist or healthcare provider.
From Our Tests
If you're looking for a product that survives heavy grinding, see our caliper-measured data: Best Night Guard for Teeth Grinding.
Frequently Asked Questions
When should I replace my night guard?
You should replace your night guard if it has visible holes, deep indentations that affect your bite, cracks, or if it no longer fits securely on your teeth.