title: Bioprogressive simplified. Part 3. Nonextraction therapy.
mesh_terms: D001696:Biomechanical Phenomena; D006801:Humans; D008310:Malocclusion / Q000628:therapy; D009969:Orthodontic Wires; D009971:Orthodontics, Corrective; D012690:Serial Extraction; D014087:Tooth Movement Techniques