Dentofacial and soft tissue changes in Class II, division 1 cases treated with and without extractions.

@article{Bishara1995DentofacialAS,
  title={Dentofacial and soft tissue changes in Class II, division 1 cases treated with and without extractions.},
  author={Samir E Bishara and Darin Cummins and Jane R Jakobsen and A R Zaher},
  journal={American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics},
  year={1995},
  volume={107 1},
  pages={28-37}
}
The purpose of this study was to compare the changes in subjects with Class II division 1 malocclusions treated with and without the extraction of four first premolars. Lateral cephalograms on 91 patients (44 extraction and 47 nonextraction) were evaluated at three stages: pretreatment, posttreatment, and approximately 2 years after treatment. The present findings indicate that before treatment, the upper and lower lips were more protrusive relative to the esthetic plane among the subjects… CONTINUE READING

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