Isis Marsh, RDH, MS, is an assistant professor and clinic coordinator in the Dental Hygiene Unit at Eugenio Maria de Hostos Community College in the South Bronx, New York. With more than 25 years of experience in general, pediatric, and periodontal practices, she has taught courses on dental materials, dental radiology, and preclinic/clinic. Marsh can be reached at Imarsh@hostos.cuny.edu.