I got my braces removed about a year ago and I wear my retainers every night now. I was advised to gently wash my retainers in cold water. However, doing so does not clean the retainer of plaque.
- I have tried brushing it with my tooth brush but it doesn't clean it properly. Now, the plaque is just building into a think over-coating.
- I tried soaking it in a Denture Cleanser tablet
- I tried soaking it over-night in a cup of listerine and then seeing if it brushed off.
None of these seemed to work, so any advice on what is the best way to clean it?
EDIT: Result of @FlatBanana's answer: I soaked my retainer for about 8 hours in a cup of water and a table spoon of baking soda. When I pulled them out, although they were not completely clean, brushing them with some toothpaste made the plaque come out much more easily. So, for now, this is the best solution I have found so far.