Did you ever have braces? They are used to straighten teeth
Yes, I used to have braces. However, I lost my retainer and need them again.
I used to have braces, too. They can be cosmetic and structural.
Did you have to wear headgear with your braces too?
Yes I did! They are sometimes also used in conjunction with other jaw appliances and such.
Yeah I had to sleep in that mess and wear the bands too. Can you tell me anything about invisalign?
I don't know much about Invisalign. I know that braces date back to ancient times, though.
Oh really? How long have braces been around?