What would the process be to get Invisalign a second time with a new dentist? (photo)

What would the process be to get invisalign a second time with a new dentist? I also need a gum lift :( I had invisalign for about 6 months but I moved across country and was unable to finish my invisalign treatment. I want to start over and get invisalign again, but will a new dentist work with my situation as I still have these cemented attachments??