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Questions and Answers

Which treatment reduces the need for orthognathic surgery?

  • Surgical treatment alone
  • Class III protraction facemask treatment (correct)
  • Class II protraction facemask treatment
  • Orthodontic treatment alone

    • What is the effect of early class III protraction facemask treatment on the need for orthognathic surgery?

  • Eliminates the need for orthognathic surgery
  • Reduces the need for orthognathic surgery (correct)
  • Increases the need for orthognathic surgery
  • Has no effect on the need for orthognathic surgery

    • What is the ratio of orthognathic surgery need between conventional treatment (CG) and early class III protraction facemask treatment (PFG)?

  • 1:2
  • 1:1
  • 2:1 (correct)
  • 3:1

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