Metric Space. A metric space is a set with a global distance function (the metric) that, for every two points in, gives the distance between them as a nonnegative real number. A metric space must also satisfy. 1. iff, 2. , 3. The triangle inequality.
PAYING FOR INVISALIGN TREATMENT. Many dental insurance plans cover Invisalign treatment just as they would other orthodontic treatments like metal braces. Plans may cover up to $3,500 of Invisalign treatment. Talk to your Invisalign-trained doctor or insurance provider to find out how much youâre covered for.
However, if your teeth are not straight, then you have a malocclusion, which is medically justified to treat with orthodontics (Invisalign is Orthodontics). A vast majority of the population has some sort of malocclusion -â¦ SHOW MORE. FSA typically covers anything medically necessary and not cosmetic or elective.