How To Wash Essix Retainers. Retainers washed in hot water shouldn't be a problem. If you decide not to invest in this machine, then you want to make sure to wash your retainers with lukewarm water and gentle soap.
Use a soft toothbrush to clean; Wash the retainer with a specialized retainer cleaner once every two to three months. Denture cleaners or bleach should not be used.
Keep your essix retainer in a plastic box whenever you don’t have it in.
Don’t brush the retainer with toothpaste, as it can scratch the surface. Some people use their toothbrush, but be aware that by doing so you will scratch your retainers. If you're instructed to wear your essix retainer while you sleep, it's best to rinse it with cool water at night before putting it in your mouth, then rinse it again when you remove it. And if you're instructed to wear your essix retainer when you eat, use a soft toothbrush to gently clean it after every meal.