title: Things you want to know. Proper quality orthodontics vs. the new mechanical "systems".
authors: Björn U
authors: BU
authors: Zachrisson
mesh_terms: D006801:Humans; D016382:Orthodontic Appliance Design; D009967:Orthodontic Appliances; D009971:Orthodontics, Corrective / Q000295:instrumentation* / Q000639:trends*