Margaret I. Scarlett, DMD, is an accomplished clinician, scientist, and lecturer who retired from the Centers for Disease Control and Prevention after 23 years of federal service. She is a past author and editor of several dental publications, and a past president of the American Association of Women Dentists. As an innovator, including writing the very first 1986 CDC infection control guidelines for dental health-care workers, she continues to explore new and better ways to deliver prevention, care and treatment of the oral cavity. She consults on oral health and primary care and is a leading dental expert in infectious and chronic diseases and systemic-oral health issues.