When transferring orthodontic offices, does the new orthodontist need to know how my teeth originally were?

I moved near the final stages of my braces. I was referred to an orthodontic office near my new hometown and have been going there since to complete the final stage of braces, getting them taken off, and for retainers as well. Who's responsibility is it to acquire information about the patient's teeth before they started treatment? Isn't the new orthodontist supposed to know how my teeth originally were to know which retainers are right for me and for which teeth to keep an eye out for?

No doctor answers yet