I don't see root resorption here in the x-ray provided. If a full exam revealed no issues, I would consider you a candidate for aligners. Your previous treatment is irrelevant.It is true that root resorption can cause problems, so an orthodontist must be very vigilant with a patient with this problem, examining bone levels and gum tissue health before moving forward and throughout the course of treatment. But treatment still is on the table.
From what I can see, your teeth seem flared. Straightening your teeth without any extractions would flare your teeth out even more than they already are. This might provide you with an unsatisfying look. More importantly, it could cause potential damage to your gum tissue, possibly exposing the roots of your teeth. The extent of correction to your crowding that could be obtained without extractions would be based on a closer look at your gums and x-rays. However, based on the pictures, for ideal correction, I would also advise extractions. I see no need for any surgery here besides the extractions.All that said, you are a good candidate for Invisalign. For what it's worth, it's hard to guess how TMD will be affected by orthodontic treatment. Sometimes it helps, sometimes it irritates symptoms. It depends on the root cause. If it's a "bad bite," Ortho can help. If it's a functional problem with the jaw, other avenues will need to be taken for relief.
