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.
dental hygienist a dental health specialist whose primary concern is nonsurgical periodontal therapy, maintenance of dental health, and prevention of oral disease. Patient education in proper brushing and interdental cleaning (such as with floss or a water jet) is also a major responsibility of the dental hygienist. In most states the dental hygienist must work under the general supervision of a licensed dentist.