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.
Find out what plans may cover orthodontics, plus learn about alternatives to braces that may be covered by some dental plans. Major medical insurance plans do not typically include dental coverage. It is most often a supplemental plan that you need to purchase separately. . When it comes to braces and orthodontics, it is important to know what your dental insurance covers and what different coverage exists for both children and adults.