I think your daughter would be happier with the Invisalign from an asethetic standpoint since they are clear and she will not be self conscious regarding her braces in her mouth.
The problem with teenagers is they have to wear their aligners regularly and stick to the program. Compliance on their part is the most important part of making this procedure work effectively. So consider this before you invest in Invisalign. It is a wonderful thing for teenagers since they have teen Invisalign now, but her dentist must make sure she understands what is involved if she wants straight teeth. The added benefit at the end is, the same trays can be used for whitening her teeth and this would be an added incentive for her!
You should see a dentist with experience in both metal and invisalign since many teenagers may have complex problems that will need more orthodontic help than invisalign can provide. See a professional with experience and also always get a second opinion before investing this amoujt of money into a dental procedure.
Good Luck!
