Reid Brogden, DDS, MS

You are over the hardest part (the first few days of braces).  Orthodontists don't have pliers to "tighten" your braces... we go through a series of wires (size 1, size 2, etc)... each change is gradually stiffer and that feels tighter.  You very well get a re-engagement of your current wire next time, maybe including your tooth that is back.  Hang in there!

Symmetry of size of your front teeth is the bigger problem than how big they actually are.  Your two front teeth have different widths after this and I would encourage you to return to your dentist to discuss.

I personally believe that an Essix retainer with a fake tooth (pontic) is the best.  No wires and often better at preventing movement of adjacent teeth.  But your own orthodontist knows your situation best and you should consider their opinion foremost.

You are an ideal Invisalign candidate... go for it and enjoy your new smile :-)  Just make sure you are also seeing your dentist for regular cleanings and check-ups first.