title: Case report: orthodontic management of congenitally absent mandibular second premolars.
authors.forename: R S
authors.initials: RS
authors.lastname: Postema
mesh_terms: D000202:Activator Appliances; D000293:Adolescent; D000848:Anodontia / Q000175:diagnosis / Q000628:therapy*; D001641:Bicuspid / Q000002:abnormalities*; D006801:Humans; D008297:Male; D008334:Mandible; D018704:Orthodontic Retainers; D019516:Orthodontic Space Closure / Q000295:instrumentation; D009971:Orthodontics, Corrective / Q000379:methods*; D014081:Tooth Extraction