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.
Save. Orthodontists specialize in diagnosing, treating and preventing dental irregularities. These dentists use braces and other devices to improve function and appearance of the teeth and jaw. Becoming an orthodontist requires many years of education beyond high school.The time should be well-spent, as orthodontists were earning an average of over $200,000 per year as of May 2009, according to the U.S. Bureau of Labor Statistics.spiring orthodontists usually begin by completing a bachelor of science degree, which traditionally takes four years. They typically follow a pre-dental or pre-medical track, majoring in a science such as biology or chemistry.