How Can Invisalign Works with Only 11 Trays? Suggested Treatment with Braces Was 24 Months? (photo)

You have mild upper and lower anterior crowding with a mild arch collapse

The lower incisors are slightly over erupted and you have a slightly deep bite

Invisalign 11 trays will include only stripping enamel and moving the front teeth

You can have Invisalign full arch or metal braces as in experienced hands they will do the same thing, but 15-18 months treatment time. I know because I have done similar cases with Invisalign.

Invisalign can treat moderate to severe crowding; it is not so good on severely rotated teeth; of which none of yours are.

Dr R Kumar BDSLDSRCS

This is simply a case of apples and oranges. All Invisalign will be doing is to correct the minor crowding you have as a result of not wearing your retainer.  The doctors recommending braces are planning on correcting your bite (which, by your photos was never fully corrected in the first place)

If all you want is to correct the tooth alignment braces or Invisalign would take the same time.

You can accomplish more types of dental movement with brackets and braces, that cannot be achieved with Invisalign. You might not need all the movements that braces would provide. You should ask this very same question to your orthodontist and invisalign provider. Ask them to explain what the differences would be in your particular case.