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American Dental Association
dental health education, oral health, child, children, second grade, primary school, school, page, classroom materials, leaflet, toothbrush, brush, sun
Dental Hygiene | Dental Public Health and Education | Dentistry | History of Science, Technology, and Medicine | Pediatric Dentistry and Pedodontics
American Dental Association. Bureau of Public Relations and McGiffert, Sarah, "Brush Your Teeth Twice a Day (1940)" (1940). Patient Dental Health Education Brochures. 63.