title: A system to determine the periodontal therapeutic needs of a population.
mesh_terms: D003728:Dental Calculus / Q000175:diagnosis / Q000628:therapy; D003753:Dental Health Surveys; D003773:Dental Plaque / Q000175:diagnosis / Q000628:therapy; D003777:Dental Prophylaxis; D005891:Gingivitis / Q000175:diagnosis / Q000628:therapy; D006267:Health Education, Dental; D006801:Humans; D009664:Norway; D009909:Oral Health; D009910:Oral Hygiene; D010510:Periodontal Diseases / Q000453:epidemiology* / Q000601:surgery / Q000628:therapy; D010512:Periodontal Index; D013997:Time Factors