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Maxillary protraction using a hybrid hyrax-facemask combination.

Manuel Nienkemper1, Benedict Wilmes, Alexander Pauls

  • 1University of Düsseldorf, Department of orthodontics, Moorenstr, 5, 40225 Düsseldorf, Germany. Manuel.Nienkemper@uni-duesseldorf.de.

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Summary
This summary is machine-generated.

This study shows that a hybrid hyrax-facemask is effective for treating growing Class III malocclusion. It improves skeletal and dental measurements without significant vertical changes or unwanted tooth movement.

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Area of Science:

  • Orthodontics
  • Craniofacial Development
  • Pediatric Dentistry

Background:

  • Class III malocclusion is a common developmental issue in growing children.
  • Orthopaedic treatment aims to correct underlying skeletal discrepancies.
  • Early intervention is crucial for managing Class III malocclusion.

Purpose of the Study:

  • To evaluate the effectiveness of a hybrid hyrax-facemask appliance.
  • To assess treatment outcomes in growing Class III patients.
  • To analyze changes in skeletal and dental parameters.

Main Methods:

  • A cohort of 16 growing Class III patients was treated.
  • Treatment involved a hybrid hyrax-facemask combination.
  • Pre- and post-treatment cephalograms were analyzed for skeletal and dental changes.

Main Results:

  • Significant improvements were observed in sagittal skeletal relationships (SNA, SNB, ANB, WITS, overjet).
  • Mini-implants demonstrated stable skeletal anchorage throughout treatment.
  • No significant vertical skeletal changes or undesirable upper incisor movements occurred.

Conclusions:

  • The hybrid hyrax-facemask is an effective orthopaedic treatment for growing Class III patients.
  • Stable skeletal anchorage prevents unwanted maxillary dental movements.
  • This approach offers a viable option for correcting Class III malocclusion.