I had braces, now I have retainers. I wear my retainer religiously ever since I got my braces off 4 years ago, unless I get something uncomfortable in my mouth. Last week, after drinking from the same glass as my 3 cousins and dirty glasses (from now on I’m washing my own glass), I got something in my mouth and it made wearing a retainer uncomfortable, so for about 5 days I didn’t wear it. The bottom retainer went in perfectly, but the top did not. Although it went in, there was a lot of pressure on my teeth. I know I’m supposed to wear it for life otherwise the teeth will go back, but I didn’t realize that if I didn’t wear it, the teeth will move so fast, I mean it’s only bean a few days, not weeks, months, or years. Now after wearing it again every night, it fits back in smoothly, but how come after 4 years of being good, they still move so fast back to the original way that they were.