Bottom teeth don't overlap as much, you can really tell on the right side of this pic. Top teeth don't turn toward each other like a book anymore. My filling on the front tooth is still chipped, but we can't fix it until everything is done. At my last appointment, we did another interproximal reduction aka trimmed my teeth a little on the bottom row. Didn't hurt. I hate the feeling of permanence, like if someone trims my teeth, that bit of tooth is going to be gone forever. Then again, I want a straight smile forever, so it doesn't really matter that my teeth are being trimmed. I'm getting a little lazy and keeping my trays out for more than 3 hours a day on some days. I have to stay more disciplined.