Scott LeSueur, DDS

Your case is definitely in the moderate category of crowding and I would estimate it would require about a year of treatment with Invisalign.  You can have impressions/scans/pictures taken by the dentist who is proposing care and submit to Invisalign for a proposal.  This is called a clincheck.  It would answer many of your questions.
Good Luck!

This is an excellant situation to consider Invisalign to align and make these teeth blend with others.  There are other possibilities too depending on the situation in your mouth.  I reccommend you go to a dentist you trust and have him review the best options for your mouth.  Good luck!

It is very wise and reccommended by most Invisalign providers to be seen every 6-8 weeks to check on Invisalign progress.  Things can happen including teeth not moving as desired and we do not want problems compounding.  Hopefully you are receiving passive aligners for your completed arch.  Also regular checks allow for questions and the feel of direction you desire.  Tell your dentist you want this. Good luck!

There may be other issues why your teeth now look large such as angle and positioning.  they could be reduced in size by slenderizing and invisalign therapy.

Invisalign will most likely cause no further injury and infact the aligner covering the tooth will protect it better. 
Good luck!