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.
The ADA maintains as well that nine out of ten part-time and full-time dental hygienists received dental coverage. Another noteworthy fact: dental hygienists employed by schools systems, public health centers, the federal government and state agencies often reap substantial benefits.