The Best Way to Clean Your Retainer, According to Dental Professionals (2025)

Have you come across the ‘Honest Hygienist’ on Instagram? Catherine Staffeldt is the dental professional behind the account that has gained a following for her straightforward, practical approach to oral care. We spoke with her about what she personally uses to clean her retainers and the cleaning recommendation she gives each of her patients. 

She puts it simply: “The Dental Pod is every hygienist’s favorite dental hack. It delivers a professional-grade clean for retainers, aligners, and guards - right from home” 

Q1. Catherine, what kind of experience do you have with wearing or cleaning retainers?

As a dental hygienist, I am regularly asked by my patients how to properly care for their retainers, aligners and nightguards. I also wear a retainer myself, so I understand firsthand how hard it is to keep them hygienically clean and free from bacteria. 

I had been using the Dental Pod over two years, and now use Zima Dental’s newest model, the Dental Pod Pro. It’s the only cleaning device I trust with my own dental appliances and the one I recommend to all my patients for professional-grade retainer cleaning from the comfort of their own homes. Zima Dental has completely transformed oral appliance care with science-backed, high-quality products and I love that they make hygiene more effective and accessible for everyone!

Q2. What’s the impact of dirty retainers on oral hygiene and health?

Poorly cleaned retainers are one of the most common hygiene issues I see in the clinic. Plaque, tartar, and bacteria can build up on appliances fast, and if they’re not properly cleaned, all of that gets transferred straight back onto your teeth and gums. This causes inflammation, recurring plaque, halitosis (bad breath) and increases your risk of periodontitis (gum disease).

People often think their appliance is clean just because they brushed it with a toothbrush, or used a sterilizing tablet, but they still come in needing intense scaling to remove hardened tartar from their teeth.

Q3. How effective are methods like brushing or cleaning tablets?

Brushing with a toothbrush can’t reach the crevices where bacteria hide, and over time, it can create microscratches on the surface of your appliance, creating the perfect environment for bacteria to thrive, replicate, and form a sticky biofilm with other species. Tablets might sterilize the surface, but they can’t remove built-up grime or the biofilm of Streptococcus bacteria and Candida albicans yeast that gets trapped in your appliance’s crevices. 

These methods are surface-level at best and don’t target the main problem. What you need is a solution that can actually break down and lift away what brushing and just soaking leave behind, that’s why I always recommend the Dental Pod Pro.

Q4. Why is the Dental Pod Pro so effective?

The Dental Pod Pro uses high-frequency ultrasonic waves between 42,000 and 47,000 Hz that create millions of microscopic bubbles. These collapse rapidly in a process called ‘cavitation’, which safely dislodges bacteria, plaque, and stains from your oral appliance.

It’s the same cleaning technology we use at the clinic, but adapted for home use. The second cleaning setting: Max Clean mode, delivers an even deeper clean, perfect for older appliances or tough yellow stains. The Dental Pod Pro leaves retainers clear, fresh, and truly clean.

Q5. Is cleaning my retainer with the Dental Pod quick and easy?

Yes, and that’s part of why I love it!  Just fill the tank with water, drop your appliance in, and press the on-button. In a few minutes, the ultrasonic waves do the job for you. It's completely effortless giving your retainer a professional clean, without having to visit your dentist.

Q6. As a dental professional, what do you like most about the Dental Pod Pro?

The three I always mention are:

1. The large tank – fits anything from retainers to night guards or TMJ appliances
   

2. The removable base – makes water refills easy and quick
   

3. Max Clean mode – eliminates deep-set stains and stubborn tartar on heavily stained or older appliances

And importantly, the Dental Pod Pro tackles bad odors. By breaking down hidden plaque and bacteria, it keeps breath fresh and appliances crystal clear. It’s every hygienist’s favourite dental hack, and a staple in my own hygiene routine.

To learn more about how the Dental Pod Pro works and why I recommend it take a look at my YouTube channel.