Hello, has anyone done fastbraces for their kid? The orthodontist said it will take 15 months to close gap between lower teeth and a 4 mm overjet. My dentist told me their system is called fastbraces and takes 3-5 months max. Same price. Only problem is I don't know anyone who has done this and how effective it is. Love the quick fix of course but will not want to do this twice. Any tips please.