[Etiology of periodontal diseases and their prevention].
D003773:Dental Plaque / Q000150:complications; D005891:Gingivitis / Q000150:complications; D006801:Humans; D008670:Metals / Q000506:poisoning; D010174:Pamphlets; D010510:Periodontal Diseases / Q000209:etiology / Q000517:prevention & control*
D008670:Metals
Atiologie periodontaler Erkrankungen und ihre Prävention.