title: Epidemiology, etiology, and prevention of periodontal diseases. Report of a WHO Scientific Group.
mesh_terms: D003728:Dental Calculus / Q000150:complications; D003729:Dental Care; D003773:Dental Plaque / Q000150:complications / Q000382:microbiology; D004194:Disease; D004497:Education, Dental; D005891:Gingivitis / Q000175:diagnosis / Q000209:etiology; D006184:Habits; D006267:Health Education, Dental; D006301:Health Services Needs and Demand; D006801:Humans; D009059:Mouth Diseases / Q000150:complications; D009910:Oral Hygiene; D010510:Periodontal Diseases / Q000175:diagnosis / Q000453:epidemiology / Q000209:etiology / Q000276:immunology / Q000517:prevention & control / Q000628:therapy; D010518:Periodontitis / Q000209:etiology; D011636:Public Health Dentistry; D012959:Socioeconomic Factors; D014944:World Health Organization