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Related Experiment Videos

Intraosseous screw-supported upper molar distalization.

Ibrahim Erhan Gelgör1, Tamer Büyükyilmaz, Ali Ihya Yhya Karaman

  • 1Department of Orthodontics, Faculty of Dentistry, Selcuk University, Konya, Turkey. egelgor@yahoo.com

The Angle Orthodontist
|January 28, 2005
PubMed
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Intraosseous screws provide efficient anchorage for maxillary molar distalization in Class II malocclusions. This method successfully moved molars without significant anchorage loss, aiding in overcorrected Class I relationships.

Area of Science:

  • Orthodontics
  • Dental Implantology

Background:

  • Maxillary molar distalization is crucial for treating Class II malocclusions.
  • Traditional anchorage methods can lead to unwanted side effects.
  • Intraosseous screws offer a potentially stable skeletal anchorage solution.

Purpose of the Study:

  • To evaluate the efficiency of intraosseous screws for anchorage during maxillary molar distalization.
  • To assess skeletal, dental, and soft tissue changes following this procedure.

Main Methods:

  • Twenty-five subjects with Class II malocclusion received intraosseous screws for immediate loading.
  • Maxillary molars were distalized using the screw-supported anchorage.
  • Cephalometric and dental cast analyses were performed before and after treatment.

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Main Results:

  • Achieved overcorrected Class I molar relationships in an average of 4.6 months.
  • Upper first molars tipped 8.8 degrees and moved 3.9 mm distally (cephalometric); 5 mm (dental casts).
  • No significant changes in overjet, overbite, or mandibular plane angle; mild incisor protrusion observed.

Conclusions:

  • Immediately loaded intraosseous screw anchorage is effective for maxillary molar distalization.
  • This technique achieves significant molar movement with minimal anchorage loss.
  • It provides a reliable option for correcting Class II malocclusions.