title: [Etiology of periodontal disease. Classifications].
mesh_terms: D003741:Dental Deposits / Q000150:complications; D003769:Dental Occlusion, Traumatic / Q000150:complications; D004194:Disease; D049690:History, Ancient; D049691:History, Medieval; D049711:History, Modern 1601-; D007509:Irritants / Q000009:adverse effects; D010510:Periodontal Diseases / Q000145:classification / Q000209:etiology* / Q000382:microbiology; D012306:Risk
chemical_list: D007509:Irritants
vernacular_title: Etiologia da doença periodontal. Classificações.