Well I just got my braces off last thursday, and just got my retainer yesterday. My orthodontist told me that I only need to wear it at night time after dinner. So I put it in and it was a little sore, but my orthodontist said it would loosen up. I can get it on really easy but it takes a bit of work for me to get them off (he said that was also normal). Overall they fit really good. Here's the problem though, last night was my first night wearing them, and I did exactly what my ortho said. Then I woke up at 5:30. My retainer wasn't in my mouth! Both top and bottom were not in my mouth! Luckily I found them, one in my bed, the other on the floor next to my bed (i was really nervous my dog got them because she sleeps in my room). I was just wondering, how could they possibly fall out of my mouth? They fit well, and my teeth haven't really shifted, and it takes some effort to get them out! Is this normal? I'm worried about wearing them tonight because I don't want to lose them after 2 days.
Also if your wondering, I use a clear, plastic retainer, top and bottom.