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.
Most doctors spend more time doing braces or cosmetic dentistry than performing invisalign! If you have a moderate to difficult case, you want to insure your invisalign doctor spends at least 50% or more of his time treating invisalign cases. Many doctors are highly educated in cosmetic dentistry or orthodontic braces.