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What Causes Bad Smells in Invisalign and How to Fix It?

Publish Date: November 6, 2023

Invisalign is a popular orthodontic treatment option that straightens teeth using a series of clear aligners. These discreet and removable trays make them a convenient alternative to traditional braces. However, one common concern among users is the development of unpleasant odors. If your Invisalign aligners start to smell bad, you’re not alone, and thankfully, there are simple ways to address and prevent this issue.

Why Do Invisalign Trays Start to Smell?

There are several reasons why your aligners might begin to emit a foul odor. Since Invisalign aligners stay in your mouth for most of the day, bacteria, saliva, and food particles can easily build up inside them. Not cleaning the trays properly, putting them back in after eating without brushing, or drinking sugary beverages while wearing them can all contribute to bad smells. Dry mouth and improper storage may also allow bacteria to grow, making the odor worse over time.

1. Bacterial Buildup

The most common cause is bacteria. When you wear aligners for up to 22 hours daily, saliva, plaque, and food particles can get trapped inside. Without proper cleaning, bacteria thrive in this moist, enclosed environment, resulting in bad breath and smelly trays.

2. Poor Oral Hygiene

If you don’t brush and floss properly before reinserting your aligners, food debris and plaque remain on your teeth. This transfers to the aligners, creating an ongoing cycle of odor and contamination.

3. Improper Cleaning Techniques

Rinsing your trays with water is not enough. Some users skip dedicated cleaning or use harsh methods like toothpaste, which can scratch the plastic and make it easier for bacteria to hide and grow.

4. Wearing While Eating or Drinking

Aligners should be removed before eating or drinking anything other than water. Sugary or acidic drinks can seep into the trays and encourage bacterial growth, while food particles trapped inside can spoil and smell.

5. Extended Use of the Same Tray

Wearing a tray longer than prescribed, whether by accident or to delay the next set, can increase the risk of smells. Over time, bacteria and plaque accumulate even with good hygiene.

How to Get Rid of the Smell?

The good news is that smelly aligners can be easily cleaned and maintained with a few smart habits.

1. Rinse Every Time You Remove Them

Make it a habit to rinse your aligners with lukewarm water every time you take them out. This helps prevent dry saliva and plaque from hardening on the trays.

2. Brush and Floss Regularly

Before reinserting your aligners, brush and floss thoroughly to remove food particles and plaque. This prevents bacteria from transferring to the trays.

3. Clean Trays Properly

Use a gentle, clear antibacterial soap and a soft-bristle toothbrush to clean your aligners at least once daily. Avoid toothpaste and colored soaps, which can cause staining or damage.

4. Soak with Cleaning Crystals or Tablets

Invisalign offers special crystal cleaning services, but you can also use over-the-counter aligner cleaning tablets. Soak your trays daily to keep them fresh and odor-free.

5. Avoid Eating with Aligners

Always remove your trays when eating or drinking anything besides water. Rinse your mouth and the trays before putting them back in.

6. Follow Your Change Schedule

Stay on track with your aligner schedule. Prolonged use of a single tray can increase the risk of smell and discomfort.

Additional Tips for Freshers: Invisalign Aligners

For those using Invisalign Aligners to achieve a straighter smile discreetly, maintaining tray cleanliness is just as important as brushing your teeth. Consider investing in a small travel cleaning kit for on-the-go care. Also, store your trays in a ventilated case when not in use to prevent bacterial growth.

Need Help with Your Invisalign? Contact Perfect Smile Tulsa!

At our dental practice, we’re dedicated to providing expert care for Invisalign users. If you’re dealing with unpleasant odors or have questions about maintaining your aligners, contact us for personalized solutions and guidance.