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.
A Dr. Dante A. Gonzales, DMD , Orthodontics & Dentofacial Orthopedics, answered. Invisalign is an appliance just like braces. Any licensed dentist can provide orthodontic treatment, including using braces or Invisalign. Usually, it would be best to start with an orthodontist. Orthodontists are specialists in moving teeth. However, the doctor's ability to use Invisalign effectively depends upon their training and experience.