title: The effects of tobacco smoking on periodontal tissues.
mesh_terms: D003773:Dental Plaque / Q000209:etiology; D005882:Gingival Diseases / Q000209:etiology*; D006801:Humans; D007972:Leukoplakia, Oral / Q000209:etiology; D010510:Periodontal Diseases / Q000209:etiology*; D012907:Smoking / Q000150:complications*