1 If X is a topological (or metric) space and M is a metric space, then the set of all bounded continuous functions from X to M forms a metric space if we define the metric as above: d (f, g) = sup x in X d (f (x), g (x)) for any bounded continuous functions f and g.
Invisalign is orthodontic appliance, so since orthodontic treatment is allowed as an FSA expense, Invisalign is covered. Different companies have different rules concerning amounts set aside and the timing of how funds are used for orthodontics.
Report Abuse. Basically, you only need braces if you want them. You cannot ask somebody else to tell you if you need braces. Of course if you ask an orthodontist, he or she will analyze your condition and decide if you need braces based on the orthodontist's view of it.Any orthodontist can say that you need braces, but you are the one that has to make the final decision.f course if you ask an orthodontist, he or she will analyze your condition and decide if you need braces based on the orthodontist's view of it. Any orthodontist can say that you need braces, but you are the one that has to make the final decision.