Why Does My Invisalign Smell Even After Cleaning?
Oral Health Blog

Why Does My Invisalign Smell Even After Cleaning?

Invisalign aligners are a popular choice for people seeking to straighten their teeth discreetly. However, one common issue that many users face is unpleasant odors coming from their aligners, even after cleaning. This can be frustrating and can affect your overall experience with Invisalign. In this article, we will explore the reasons behind this persistent smell and offer practical solutions to keep your aligners fresh and odor-free.

Understanding the Causes of Odor

Bacterial Build-Up

One of the primary reasons for the unpleasant smell in your Invisalign aligners is the build-up of bacteria. Your mouth is home to millions of bacteria, which can transfer to your aligners every time you wear them. When these bacteria accumulate, they produce waste products that cause bad odors.

Improper Cleaning

While you may be cleaning your aligners regularly, improper cleaning techniques can leave behind residue that contributes to bad smells. Simply rinsing with water or brushing without proper technique might not be enough to remove all the bacteria and plaque.

Food Particles and Debris

Small food particles and debris can get trapped in your aligners, especially if you do not brush and floss your teeth thoroughly before reinserting them. These particles can decay and lead to unpleasant odors.

Dry Mouth

A dry mouth can also contribute to bad-smelling aligners. Saliva helps to wash away food particles and bacteria. When your mouth is dry, bacteria can thrive and produce more odors. This can be exacerbated by wearing aligners, which can reduce the flow of saliva.

Why Choose Persulfate-Free Purple Tablets?

  1. Residue-Free Cleaning: Unlike some traditional cleaners that may leave behind a residue or alter the taste of your aligners, persulfate-free purple tablets dissolve completely. This ensures your aligners remain fresh and free from any lingering tastes.

  2. Gentle yet Effective: These tablets are formulated to be gentle on your aligners while still effectively removing bacteria, plaque, and odor-causing substances. This ensures that your aligners stay clean without compromising their integrity.

  3. No Harsh Chemicals: Persulfate-free tablets are designed without harsh chemicals like persulfates, which can sometimes cause irritation or allergic reactions in sensitive individuals. This makes them suitable for daily use without concerns about adverse effects.

  4. Ease of Use: Using persulfate-free purple tablets is straightforward. Simply drop a tablet into a glass of lukewarm water and place your aligners inside. Let them soak for the recommended time (usually around 15 minutes), then rinse your aligners thoroughly with water before reinserting them.

Preventing Future Odors

Avoid Eating and Drinking with Aligners

To prevent food particles and bacteria from getting trapped in your aligners, always remove them before eating or drinking anything other than water. This practice also helps to avoid staining.

Regular Dental Check-Ups

Regular visits to your dentist are essential for maintaining good oral hygiene and ensuring that your aligners are fitting correctly and not causing any issues. Your dentist can provide professional cleaning and additional tips for keeping your aligners fresh.

Proper Storage

When not wearing your aligners, store them in a clean, dry case. This prevents exposure to bacteria and reduces the risk of contamination. Make sure to clean the case regularly as well.


Unpleasant odors from Invisalign aligners can be a common issue, but they are preventable with proper care and maintenance. Understanding the causes of these smells and implementing a thorough cleaning routine can help keep your aligners fresh and odor-free. By following these tips and ensuring good oral hygiene, you can enjoy a more pleasant experience with your Invisalign treatment. Remember, consistency is key to preventing odors and maintaining the effectiveness of your aligners.

Are you currently using or thinking about using retainer cleaning tablets? It's important to be aware that certain cleaner brands have the potential to cause toxic reactions.

It's crucial to be aware of harmful ingredients hiding in common cleaner brands. One such persulfate, which can pose SERIOUS health risks and is found in almost all leading retainer cleaners brands. Moreover, persulfate's health risks potentially impact respiratory health and skin sensitivities in your family, especially in teens and sensitive individuals. Learn more about the risk of persulfate HERE. 



The content in this article is for informational purposes only and is not a substitute for professional medical advice. Always consult with a healthcare provider before making any changes to your health regimen. The author and publisher do not take responsibility for any consequences resulting from the information provided in this article.