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The European Journal of Orthodontics 1988 10(1):149-164; doi:10.1093/ejo/10.1.149
© 1988 by European Orthodontic Society
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Mandibular anchorage in Herbst treatment

Hans Pancherz*,1 and Ken Hansen**

*Department of Orthodontics, University of Giessen West Germany
**Department of Orthodontics, University of Lund Malmo, Sweden

1Professor Dr Hans Pancherz Abteilung für Kieferorthopädie Zentrum für ZMK Justus-Liebig-Universität Schlangenzahl 14 D-6300 Giessen West Germany

The purpose of this investigation was: (1) to analyse the efficiency of 5 mandibular anchorage systems in Herbst treatment and (2) to ascertain if recovery in lower incisor tooth movements after treatment resulted in anterior crowding. The sample consisted of 65 Class II, division 1 malocclusions treated with the Herbst appliance for an average period of 7 months. The patients were re-examined 6 and 12 months post treatment. The following mandibular anchorage systems were utilized: (1) Premolar anchorage (n = 16), (2) Premolar-Molar anchorage (n = 20), (3) Pelott anchorage (n = 6), (4) Labial-Lingual anchorage (n = 10) and (5) Class III elastics (n = 13). The method comprised an analysis of mandibular tracings from mouth open profile roentgenograms and mandibular dental casts. The results revealed that none of the 5 anchorage systems used in Herbst treatment could prevent anterior movement of the mandibular incisors and molars. About 80 per cent of the incisor tooth movements and 20 per cent of the molar tooth movements recovered after treatment. The post treatment tooth position changes were not considered to result in anterior crowding.


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