Braces, Invisalign or Spring Retainers? (Photos)

Any of those three options would work for what you are trying to accomplish and your analysis is accurate. The spring retainer will not rotate your bicuspid. Invisalign can rotate the bicuspid by placing an attachment on the tooth. Good luck!

iNVISALIGN can do the job and if you find somebody that can utilize acceleration as the one type  I carry with two ways acceleration, the treatment could go smoother and faster than the regular 14 days change of every aligner, meaning that the aligners could be changed every 3-4 or five days  and your treatment  will be finished much sooner than regular Invisalign; and of course much faster than regular brackets with no hurting your mouth or looking with metal in your mouth also no emergencies or brackets coming off or wire poking on your cheeks.

I agree with Dr. Lockhart.  Invisalign will allow straightening of your lower anteriors and rotation/alignment of your bicuspid.  You will most likely be a candidate for Invisalign GO,which is less expensive than full Invisalign treatment. It does not treat the molar teeth, but includes 20 aligners, whihch should be sufficient to make the corrections that you are looking for.