title: [Angle's orthodontics: a critical review. II. Angle's non-extraction theory, and his attempt on standardization].
mesh_terms: D049673:History, 20th Century; D006801:Humans; D008310:Malocclusion / Q000145:classification / Q000628:therapy*; D009967:Orthodontic Appliances / Q000592:standards; D009970:Orthodontics / Q000266:history; D009971:Orthodontics, Corrective / Q000379:methods; D012690:Serial Extraction