Wearing a night guard helps protect your teeth from grinding and clenching while you sleep. However, just like a toothbrush, it needs to be cleaned regularly to prevent bacteria buildup and keep it in good condition. This article will guide you step by step on how to clean your night guard properly.
Why Cleaning Your Night Guard is Important

A night guard spends hours in your mouth, collecting bacteria, plaque, and food particles. If not cleaned, it can develop an unpleasant odor, discoloration, and even lead to oral health problems like gum disease or cavities. Cleaning your night guard daily helps keep your mouth healthy and extends the life of the guard.
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Supplies Needed for Cleaning
To clean your night guard properly, you will need:
- A soft toothbrush
- Mild dish soap or non-alcoholic mouthwash
- Lukewarm water
- A clean towel
- A ventilated case for storage
- Optional: baking soda, hydrogen peroxide, or vinegar for deeper cleaning
Daily Cleaning Routine
Cleaning your night guard every morning is essential. Follow these steps for a quick and effective daily cleaning routine:
- Rinse Immediately: After removing your night guard, rinse it under lukewarm water to wash away saliva and loose debris.
- Brush Gently: Use a soft toothbrush and mild dish soap or non-alcoholic mouthwash to gently clean all surfaces. Avoid toothpaste, as it can be too abrasive and scratch the plastic.
- Rinse Again: After brushing, rinse the guard thoroughly with lukewarm water to remove any remaining soap or mouthwash.
- Dry Properly: Place the night guard on a clean towel and let it air dry completely before storing it in its case.
Deep Cleaning Methods
Even with daily cleaning, deeper cleaning is needed at least once a week to remove any stubborn bacteria or stains. Here are some effective methods:
- Baking Soda Paste
- Mix a small amount of baking soda with water to form a paste.
- Use a toothbrush to scrub the night guard gently.
- Rinse thoroughly and let it dry before storing.
- Hydrogen Peroxide Soak
- Soak the night guard in a mixture of equal parts hydrogen peroxide and water for about 30 minutes.
- Rinse well and allow it to dry completely.
- White Vinegar Soak
- Soak the night guard in white vinegar for 30 minutes.
- Rinse with lukewarm water and allow it to dry.
- Denture Cleaner Tablets
- Drop a denture cleaner tablet into a cup of water.
- Soak the night guard for the recommended time (usually 15-20 minutes).
- Rinse well and dry completely.
What to Avoid When Cleaning Your Night Guard
To prevent damage, avoid these common mistakes:
- Do not use hot water, as it can warp the plastic.
- Do not use toothpaste, which can scratch the surface.
- Do not soak in alcohol-based mouthwash, as it can weaken the material.
- Do not store a wet night guard in a closed case, as this can cause bacteria growth.
How to Store Your Night Guard Properly
Proper storage is just as important as cleaning. Follow these steps:
- Always let your night guard dry completely before storing it.
- Use a ventilated case to allow air circulation.
- Store the case in a cool, dry place away from direct sunlight.
- Clean the storage case regularly with mild soap and water.
When to Replace Your Night Guard

Even with proper care, night guards do not last forever. Here are some signs that it may be time to replace yours:
- Visible cracks or tears
- Changes in fit or discomfort
- Persistent bad odor even after cleaning
- Yellowing or discoloration
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FAQs
How often should I clean my night guard?
You should clean your night guard daily to remove bacteria, plaque, and saliva buildup. A deeper clean using denture tablets or a vinegar solution can be done once a week to prevent odors and stains.
What is the best way to clean a night guard?
Rinse it with lukewarm water after each use, then gently brush it with a soft toothbrush and mild soap. Avoid using toothpaste, as it can be too abrasive and cause scratches. Let it air dry before storing it in a ventilated case.
Can I soak my night guard in mouthwash?
While occasional soaking in alcohol-free mouthwash is fine, daily use may damage the material over time. Instead, use a diluted vinegar or hydrogen peroxide solution for deep cleaning. Always rinse thoroughly afterward.
Conclusion
Keeping your night guard clean is essential for maintaining good oral hygiene and extending its lifespan. By following a simple daily cleaning routine and doing deep cleaning once a week, you can ensure that your night guard stays fresh and safe to use. Proper storage and regular inspection will also help you get the most out of your night guard. If you notice damage or discomfort, consult your dentist about getting a replacement.