How To Clean Your Retainer Case. Immediately after removing the retainer or aligner from your mouth, rinse it under lukewarm water. Soaking your retainers in a vinegar and water solution removes calcium and mineral deposits on the retainers.
To clean your retainer case: Scrub with dish soap for 20 seconds, using a sponge or scrubber appropriate for the material of your retainer case. While it’s still wet, rinse and use your fingers to help remove any debris.
It’s good to rinse right away since the debris can harden making it difficult to clean.
Use these steps to clean retainers with vinegar: You can harbor just as much bacteria as your retainer can. While it’s still wet, rinse and use your fingers to help remove any debris. You do need to clean your retainer regularly, but because of the delicate plastic and/or metals, a retainer is made with, using alcohol or harsh cleaning products could potentially corrode or damage your retainer.