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.
3 Dental hygienists work in a host of settings to deliver clinical care and work under varying levels of supervision, depending on the state practice act. States are increasingly recognizing the importance of increasing direct access to dental hygiene services. In 1995, five states allowed direct access.