title: [Does the presence of calculus always cause periodontal disease?].
authors.forename: L
authors.initials: L
authors.lastname: Sewón
mesh_terms: D003728:Dental Calculus / Q000150:complications*; D006801:Humans; D010510:Periodontal Diseases / Q000209:etiology*
vernacular_title: Onko hammaskivi sittenkin syy parodontiitin syntymiselle?