My bite was really bad, last June when I got my braces on. There was extensive damage on my teeth, thank you government dental care. 🙁
I asked about InvisAlign, but its cost was higher than the metal bracket types and it would have taken much longer to complete successfully. As it stands, I paid 4K out of pocket, using zero interest in house financing through the orthodontic office. I have about a year to go with the metal, and then another couple of years with the old school retainers. Once the metal comes off, though, I can get the exposed roots filled in and eliminate that problem.