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PG Forum/Review of Contemporary Global Literature

Materials and Methods A follow-up investigation of the stability of the Class II correction by Herbst appliance was carried out to analyze the very long-term effects of Herbst therapy on dentoskeletal structures. The sample comprised of fourteen adolescent (12 males, 2 females) Class II Division 1 patients who were treated with Herbst appliance at ages 12–14 years. The subjects were re-examined after therapy at ages of 20 years (after the closure of radius epiphysis/diaphysis plate) and 46 years. Lateral films were analyzed from before (T1) and after (T2) treatment, and at 6 years (T3) and 32 years (T4) after treatment. The head film evaluations comprised a standard analysis and an analysis of sagittal changes in occlusion.