title: Flossing reduces bacteria causing periodontal disease, twin study shows.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D003742:Dental Devices, Home Care; D003773:Dental Plaque / Q000382:microbiology* / Q000517:prevention & control*; D006801:Humans; D010510:Periodontal Diseases / Q000382:microbiology / Q000517:prevention & control*; D055815:Young Adult