Australasian Orthodontic Journal (Dec 2023)

Effect of upper premolar extractions on the position of the upper lip

  • Bokas Jim,
  • Collett Tony

DOI
https://doi.org/10.2478/aoj-2006-0004
Journal volume & issue
Vol. 22, no. 1
pp. 31 – 37

Abstract

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It has been suggested that Class II division 1 malocclusions treated with extractions result in detrimental changes in the facial profile. This study investigates changes in the position of the upper lip following upper arch extractions only.