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.
The other seven would be treated to a better result with braces. Third, because Invisalign appears easier to use than braces, dentists with little or no orthodontic training are now also offering orthodontic services to their patients.