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.
If your insurance covers orthodontics, then Invisalign is covered. The doctor doesnt tell the insurance company what method (Invisalign or Braces) is being used. Just call your insurance company and ask if they cover code D8090. Remember there may be dollar maximums on your plan for orthodontic work, so find out what they are, and what percentage the insurance company will cover.