How to Clean Your Invisalign and Retainer Properly - And Why Most People Get It Wrong
By Dr Sarah Mpi · 5 min read · Dentist-reviewed
You're investing hundreds, sometimes thousands, of pounds in your smile. But if you're not cleaning your aligners correctly, you could be undoing all of that work. Here's what your dentist probably hasn't told you.
Whether you're wearing Invisalign, a retainer, a nightguard, or a denture, keeping your removable dental appliance clean isn't just about fresh breath. Bacteria that build up on aligners can cause cavities, gum disease, and even damage the appliance itself. And yet, most people are still rinsing under the tap and hoping for the best.
Why rinsing your aligner isn't enough
Running your aligners under warm water feels like you're doing something, but the reality is that water alone cannot remove the plaque and bacteria that cling to the microscopic grooves in your appliance. Within hours of wearing an aligner, a biofilm begins to form. Within days, if not properly cleaned, that biofilm hardens and becomes far harder to remove.
Over time, this leads to a cloudy, discoloured aligner, unpleasant odour, and a significantly higher risk of oral health problems during your treatment.
What not to do
- Don't use toothpaste, it's abrasive and scratches aligners, making bacteria harder to remove
- Don't soak in hot water, heat warps the plastic and ruins the fit
- Don't use regular mouthwash, the alcohol can discolour the appliance
- Don't eat or drink (except water) while wearing your aligners
The right way to clean your aligner or retainer
Dentists recommend cleaning your appliance at least once a day, ideally twice. Here's the routine that actually works:
- Rinse first- remove your aligner and rinse it with cool water to loosen any loose debris
- Deep clean daily- use an ultrasonic cleaner to break down plaque and bacteria at a microscopic level, without any scrubbing or harsh chemicals
- Rinse after cleaning - a 30-second rinse under cool water before reinserting is all you need
- Store in a clean case- never leave aligners on a surface or wrapped in tissue
What is ultrasonic cleaning and why does it work so well?
Ultrasonic cleaners use high-frequency sound waves (42,000 Hz in the case of the Sereclean Pod) to create millions of tiny microscopic bubbles in water. When these bubbles collapse by a process called cavitation, they generate miniature bursts of energy that dislodge bacteria, plaque, and debris from every surface of your appliance, including the areas you simply can't reach with a brush.
This technology has been trusted in laboratories and medical settings for decades. The Sereclean Pod brings that same professional grade performance into your home, completing a full clean cycle in just five minutes.
The Sereclean Pod removes up to 99.9% of bacteria and is the only ultrasonic cleaning pod registered with the MHRA, making it a certified medical device. That matters when you're placing something in your mouth every day.
Works for all removable appliances
- Invisalign and clear aligners
- Retainers (fixed and removable)
- Dentures
- Nightguards and mouthguards
How to use the Sereclean Pod
It's designed to be as simple as possible:
- Fill the tank to the MAX line with room-temperature water
- Place your dental appliance in the pod, fully submerged
- Drop in a Sereclean cleaning tablet for enhanced antibacterial results
- Press start and let the 5-minute cycle run
- Remove your appliance, rinse for 30 seconds, and you're done
Frequently asked questions
Can I clean my retainer and aligner at the same time?
Yes, the Sereclean Pod is designed to accommodate multiple appliances in a single cycle.
Do I need to use a tablet, or will water alone work?
The pod works with water alone, but using a Sereclean cleaning tablet significantly enhances the antibacterial effect and leaves your appliance fresher.
Is ultrasonic cleaning safe for all aligners?
Yes. The process is gentle on the appliance material, no abrasion, no heat, no risk of warping or damage.
How often should I clean my aligner?
At a minimum, once a day. Twice daily, morning and night, is ideal for maintaining freshness and oral health throughout your treatment.
Ready to give your aligners the clean they deserve? Shop the Sereclean Pod →
