Hello. I just had my braces removed 5 days ago and I was suppose to get my retainers in today but due to scheduling conflicts I have to wait another 2 days to get them. I've already noticed some shifting. My bottom teeth are spreading out. What really has me worried is that I had jaw surgery 8 months ago to correct an underbite and I'm scared that this delay mightpermanently ruin my smile. Should I be worried? Will the retainers fix this shift once I get them or is it too late?