How To Clean Plastic Retainers Naturally. To clean retainers or other mouth appliances, pour warm water into a stainless steel or plastic container and stir in the baking soda. Be sure to rinse them off a few times to make sure all the soap is.
Make sure the cup is. After 20 minutes, remove your retainer from the natural cleaning solution and wash thoroughly. Be sure to rinse them off a few times to make sure all the soap is.
Have a clean glass container and fill it halfway with warm water.
After 20 minutes, remove your retainer from the natural cleaning solution and wash thoroughly. Use antibacterial soap to wash This is another natural ingredient you can use to clean a retainer without fear of damaging it. Be sure to rinse them off a few times to make sure all the soap is.