Can I Clean Invisalign in an Ultrasonic Cleaner?

Published on  | Annadin Sorbito | Time to read 6 min
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If you're wearing Invisalign, you already know how important it is to keep your aligners crystal-clear and odor-free. But brushing them by hand gets tiring fast. That's where an ultrasonic cleaner retainer system comes in. These devices are increasingly popular for cleaning retainers and aligners—but can you safely clean your Invisalign trays in one?

The answer is yes—but only if you do it the right way.

Let’s walk through how to safely clean Invisalign in an ultrasonic cleaner, what to avoid, and how ultrasonic tablets can make all the difference.


Is It Safe to Clean Invisalign in an Ultrasonic Cleaner?

Yes, as long as the ultrasonic device is designed for dental appliances, you can absolutely clean Invisalign aligners in it. Most Invisalign trays are made from a type of medical-grade thermoplastic that holds up well to gentle ultrasonic vibration.

The key is using a cleaner that’s made specifically for retainers or aligners. A standard jewelry ultrasonic cleaner might not offer the same safe frequency range.

Always choose an ultrasonic cleaner retainer system made for oral appliances to avoid damage.


Why Use an Ultrasonic Cleaner?

Invisalign aligners are worn for 20–22 hours per day. That’s a lot of time for bacteria, plaque, and food particles to build up. Traditional brushing can scratch the plastic and won’t always reach the deep crevices.

With an ultrasonic cleaner retainer, sound waves create microscopic bubbles that scrub every surface of the aligner without harming it.

It’s the most effective, damage-free way to clean your trays—hands-free.


Can I Just Use Water in the Ultrasonic Cleaner?

Technically, yes—but it won’t clean very well. Water alone doesn’t have the disinfecting or clarifying power to remove biofilm and buildup.

To get the full benefits, you’ll need to add a safe, effective ultrasonic tablet made for Invisalign or retainers.

Using ultrasonic cleaner tablets gives you the cleaning boost needed to actually disinfect your trays.


How to Clean Invisalign in an Ultrasonic Cleaner

Cleaning your Invisalign with an ultrasonic cleaner retainer is incredibly easy and takes just a few minutes a day.

Step-by-Step Instructions

  1. Fill the tank with warm (not hot) water

  2. Drop in one ultrasonic tablet

  3. Place your Invisalign trays inside

  4. Run the cleaner for 5–10 minutes

  5. Remove and rinse your trays under fresh water

Make sure to let your aligners air dry or gently pat them with a clean cloth before placing them back in your mouth.

This simple daily routine keeps your Invisalign clear, fresh, and free of bacteria.


Best Practices for Invisalign Cleaning

To prevent damage or poor results:

  • Avoid bleach or alcohol-based cleaners

  • Don’t run the cleaner for longer than recommended

  • Never use boiling water

  • Clean your device regularly, too

Using the right cleaner and the right ultrasonic cleaner tablets ensures you get great results without warping or clouding your aligners.

The wrong products can make your aligners smell worse or even warp them.


Why You Should Use Ultrasonic Cleaner Tablets

Some users try to clean Invisalign trays with denture tablets or just soap. That’s a mistake. Denture cleaners may be too abrasive, and soap leaves residue.

The best option? Ultrasonic cleaner tablets designed specifically for retainers and aligners. These dissolve completely, are persulfate-free, and gently lift away stains and bacteria.

Ultrasonic tablets are the secret weapon for keeping Invisalign trays odorless and crystal clear.

Shocking Risks of Dirty Retainers: Could Your Neglect Lead to Serious Health Issues?

Skipping regular retainer cleaning can turn it into a breeding ground for harmful bacteria, leading to infections, Bad breath, and even damage to your teeth and gums. This isn’t just about hygiene—it’s about protecting your health. Don’t wait until it’s too late.


What to Look For in a Tablet

  • Persulfate-free formula

  • Safe for plastic aligners

  • Fast-dissolving

  • Non-toxic and residue-free

If you're using Invisalign, your oral hygiene depends heavily on how clean your aligners stay. Using a random cleaner can cause irritation, bad taste, or worse—bacteria buildup.

The right tablet means fewer stains, less odor, and a more hygienic smile.


Common Mistakes When Cleaning Invisalign

People new to ultrasonic cleaners often make avoidable errors. Here’s what to look out for:

1. Using Just Water

As mentioned earlier, water alone doesn’t cut it. You need ultrasonic cleaner tablets for the cleaning to be truly effective.

2. Cleaning Less Often Than You Should

You wear Invisalign nearly all day—daily cleaning is a must. Otherwise, bacteria can build up quickly, causing bad breath and yellowing.

Cleaning your aligners should be as routine as brushing your teeth.

3. Using Harsh Chemicals

Never use bleach, alcohol, or household cleaners. They can permanently damage the trays and irritate your mouth.

Stick with products labeled safe for an ultrasonic cleaner retainer system and made specifically for aligners.


Manual Cleaning vs. Ultrasonic Cleaning

Still brushing your Invisalign trays with a toothbrush and toothpaste? Here's how that compares:

Method Cleaning Power Risk of Damage   Effort
Brushing with Toothpaste Low–Medium High (scratches) High
Soaking in Water Low Low Low
Ultrasonic + Tablet High Very Low Very Low

Final Thoughts

So, can you clean Invisalign in an ultrasonic cleaner? Yes—and you probably should.

With the right setup, including a safe ultrasonic cleaner retainer device and high-quality ultrasonic tablet, you’ll clean your Invisalign trays more thoroughly, more safely, and with less hassle.

Cleaner trays = fresher breath, clearer plastic, and a healthier mouth.

If you’re serious about your smile, an ultrasonic cleaner is the best investment you can make in your Invisalign care routine.

Disclaimer:

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.

Meet Dr. Jessica Cohen

Dr. Jessica Cohen, DMD, MS is a Board-Certified Orthodontist serving the Deerfield area with over a decade of experience. As a devoted mom to three girls — Scarlett, Shiloh, and Schuyler — she knows the value of creating a warm, welcoming environment for patients of all ages. Passionate about crafting confident, healthy smiles, Dr. Cohen blends science and artistry through her background in studying the esthetics of beauty pageant winners. She proudly recommends Weiss Naturals Persulfate-Free Retainer Cleaner tablets by B. WEISS to her patients — and even her own kids use it daily— for its gentle yet effective formula that keeps retainers fresh without harsh chemicals. It’s her trusted solution for safe, everyday care.

Meet Dr. Jessica Cohen

Dr. Jessica Cohen, DMD, MS is a Board-Certified Orthodontist serving the Deerfield area with over a decade of experience. As a devoted mom to three girls — Scarlett, Shiloh, and Schuyler — she knows the value of creating a warm, welcoming environment for patients of all ages. Passionate about crafting confident, healthy smiles, Dr. Cohen blends science and artistry through her background in studying the esthetics of beauty pageant winners. She proudly recommends Weiss Naturals Persulfate-Free Retainer Cleaner tablets by B. WEISS to her patients — and even her own kids use it daily— for its gentle yet effective formula that keeps retainers fresh without harsh chemicals. It’s her trusted solution for safe, everyday care.