title: [Progress in dentistry in the twentieth century 4. Orthodontics].
mesh_terms: D002508:Cephalometry / Q000266:history; D001840:Dental Bonding / Q000266:history; D006665:History of Dentistry; D049673:History, 20th Century; D006801:Humans; D009967:Orthodontic Appliances / Q000266:history; D018704:Orthodontic Retainers / Q000266:history; D009969:Orthodontic Wires / Q000266:history; D009970:Orthodontics / Q000266:history* / Q000639:trends