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.
Dentists' earnings also change significantly from state to state. While states like Delaware, Alaska and Connecticut all have average annual earnings of $180,000 or more, many southern states, including Louisiana and Oklahoma are under the $115,000 mark.