How to Clean a Night Guard

Introduction

A night guard collects saliva, bacteria, and plaque every time you use it, which can lead to odors, staining, and oral health issues if it isn’t cleaned properly. Thankfully, keeping a night guard fresh and hygienic is quick and easy when you follow the right methods. This guide explains exactly how to clean a night guard safely without damaging the material.

What You'll Need

• Soft toothbrush

• Mild dish soap

• Lukewarm water

• Non-abrasive denture or retainer cleaning tablets (optional)

• White vinegar (optional)

• Hydrogen peroxide (optional)

Steps

Rinse the night guard under lukewarm water immediately after removing it in the morning to wash away saliva and loose debris.
Apply a small amount of mild dish soap to a soft toothbrush and gently brush all surfaces of the night guard. Avoid using toothpaste, as it is abrasive.
Rinse thoroughly with lukewarm water to ensure all soap is removed.
Place the night guard on a clean towel and allow it to fully air dry before storing it. Moisture encourages bacterial growth.
Clean the storage case by washing it with warm, soapy water and allowing it to dry completely before placing the night guard inside.

Alternative Methods

• Use a denture or retainer cleaning tablet according to the package instructions for a deeper clean once or twice a week.

• Soak the night guard in equal parts white vinegar and water for 15–20 minutes to remove odors, then rinse and brush gently.

• Use a short hydrogen peroxide soak (10 minutes maximum) to sanitize, but avoid frequent use to prevent material breakdown.

What NOT to Do

• Do not use toothpaste, as it can scratch and damage the material.

• Do not soak the night guard in mouthwash with alcohol, which can cause cracking.

• Do not use hot water, which can warp the shape of the guard.

• Do not store the night guard while it is still wet.

• Avoid harsh chemicals like bleach, which can damage the material and be unsafe.

FAQs

How often should I clean my night guard?

You should clean it daily after each use and perform a deeper clean once or twice per week.

Why does my night guard smell?

Odors usually result from bacteria buildup. Regular cleaning and allowing it to fully dry before storing prevent this.

Can I use toothpaste to clean it?

No. Toothpaste is abrasive and can scratch the surface, making it more likely to harbor bacteria.

How long does a night guard last?

With proper care, most night guards last one to five years depending on material and grinding intensity.

This article is for informational purposes only. Always follow manufacturer instructions and use proper safety precautions. You assume all risk for any actions you take based on this guide.

Articles

Read our latest guides

Discover step-by-step methods for removing stains and cleaning every type of surface.