Kindly refer to the following link(s):
Ruling on wearing braces (video)
https://www.assimalhakeem.net/sheikh-is-it-permissible-to-wear-dental-braces/
QUESTION:
Sheikh is it permissible to wear dental braces?
ANSWER:
If it is to fix an abnormality and a defect or to fix something that impairs speech or hearing, this is permissible.
And Allah Knows Best.