For example, a graphite/epoxy (graphite fibers suspended in an epoxy matrix) lamina may be on the order of 0.127 mm thick. For the purpose of analysis, a lamina is typically modeled as having one layer of fibers through the thickness.
Minnesota allows dental therapists with direct supervision; and advanced dental therapists (ADT) with general supervision. ADTs may be dually licensed as an ADT and registered dental hygienist (RDH). Maine allows dental hygiene therapists (DHT) with direct supervision.
Issues in Licensure. 1  Occupational therapy is regulated in all 50 states, the District of Columbia, Puerto Rico and Guam. Different states have various types of regulation that range from licensure, the strongest form of regulation, to title protection or trademark law, the weakest from of regulation.