Here are some thoughts. Often times attachments are removed if a refinement is necessary, are you close to this point in treatment? Have you asked if you could shorten the interval between aligners to possibly speed up treatment? If you are the bride, did the dentist know the date of your wed...
It is likely that there is excess material that was used to place these "buttons" return to your dentist so that it can be polished off. Otherwise besides preventing flossing, it may prevent proper movement and positioning.
This is a complicated series of questions that you ask. I understand the financial importance, but the health concerns are far more important. Keep in mind that after age 12 palatal expansion comes with frequent relapse. In regard to the implants, I would place them after orthodontics, not...
