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.
By: Erick Cutler. To practice dentistry in the United States, a dentist needs a valid license. But does one need a dental license to own and operate a dental practice? In some places, the answer is a resounding âyes.â In others, itâs âno.â. At one time, most states prohibited corporations from owning dental or medical practices.