You won't believe how Quick they move, but you won't really notice because you see yourself everyday. It's when you look back at pictures.
I noticed most when I had a tooth removed to move my teeth over (my central line was way to the left) and when it first came out I could get my little finger all the way in the hole and it closed up so fast and my central line was nearly in the middle in no time at all.
My advice is take some photos maybe once a month (I wish I had done this) and you will see your smile transform :)
