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Related Experiment Videos

Noncompliance unilateral maxillary molar distalization:.

Anestis Mavropoulos1, Korkmaz Sayinsu, Ferdi Allaf

  • 1Department of Orthodontics, University of Geneva, Barthelemy-Menn 19 Geneva, Geneva 1205, Switzerland. anestis.mavropoulos@medecine.unige.ch

The Angle Orthodontist
|April 28, 2006
PubMed
Summary

The Keles slider appliance effectively moved upper molars distally in Class II patients. However, significant anchorage loss occurred, highlighting the need for careful patient selection in orthodontic treatment.

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Area of Science:

  • Orthodontics
  • Dental Biomechanics
  • Craniofacial Development

Background:

  • Unilateral Class II molar relationships present complex orthodontic challenges.
  • Effective distalization of upper molars is crucial for correcting such discrepancies.
  • Noncompliance intraoral appliances offer an alternative for molar movement.

Purpose of the Study:

  • To perform a three-dimensional (3-D) analysis of tooth movements.
  • To evaluate the efficacy and anchorage control of the Keles slider appliance for unilateral upper molar distalization.

Main Methods:

  • Prospective study involving twelve patients with unilateral Class II molar relationships.
  • Utilized a noncompliance intraoral appliance (Keles slider) exerting 150g distalizing force.

Related Experiment Videos

  • Employed 3-D surface laser scanning of dental casts for precise measurement of tooth movements.

    • Main Results:

    • Achieved an average unilateral upper first molar distal movement of 3.1 mm.
    • Observed significant anchorage loss, including 2.1 mm incisor proclination and 6.1° premolar mesial inclination.
    • Noted midline deviation and buccal displacement of contralateral premolars, with substantial inter-patient variability.

    Conclusions:

    • Noncompliance unilateral upper molar distalization using the Keles slider is an efficient treatment approach.
    • Substantial anchorage loss is a significant concern, necessitating careful case selection.
    • Conditions like anterior crowding or spacing may exacerbate anchorage loss, requiring strategic orthodontic planning.