Do I need jaw surgery?

Hello! I was wondering what would be the right procedure for me and if it would be medically necessary or only cosmetic. I feel like I have a recessed jaw and chin but I have no problem with my bite whatsoever and my orthodontist said I only had my braces for cosmetic reasons; to close the gaps between my teeth. I do have an appointment soon with a maxillofacial surgeon to get a professional opinion but I don't know what to expect and was wondering what the general consensus would be. Thank you so much :)