title: [Change in periodontal index on the orthodontic treatment].
authors.forename: J Y
authors.initials: JY
authors.lastname: Xu
mesh_terms: D000293:Adolescent; D002648:Child; D003774:Dental Plaque Index; D006801:Humans; D008310:Malocclusion / Q000628:therapy; D009967:Orthodontic Appliances / Q000009:adverse effects*; D009968:Orthodontic Appliances, Removable / Q000009:adverse effects; D010512:Periodontal Index