Class II correction in Herbst and Bass therapy.

@article{Pancherz1989ClassIC,
  title={Class II correction in Herbst and Bass therapy.},
  author={Hans Pancherz and Olle Malmgren and Urban H{\"a}gg and J Omblus and Ken Flemming Hansen},
  journal={European journal of orthodontics},
  year={1989},
  volume={11 1},
  pages={
          17-30
        }
}
The purpose of this study was to make a quantitative evaluation on lateral cephalograms of skeletal and dental changes contributing to Class II correction in Herbst and Bass appliance therapy. From two male patient samples treated with either the Herbst appliance (n = 72) or the Bass appliance (n = 32) 18 pairs of subjects were selected. The subjects within each pair had to be in the same growth period at the time of therapy and to exhibit a similar pretreatment sagittal (ANB angle) and… CONTINUE READING
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