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Unilateral posterior crossbite with mandibular shift: a review.

David B Kennedy1, Matthew Osepchook

  • 1drdavidkennedy@yahoo.ca

Journal (Canadian Dental Association)
|October 6, 2005
PubMed
Summary

Early orthodontic treatment for unilateral posterior crossbites with mandibular shifts is highly successful. Addressing this condition early prevents self-correction issues and potential temporomandibular disorders.

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Area of Science:

  • Dentistry
  • Orthodontics
  • Pediatric Dentistry

Background:

  • Unilateral posterior crossbites with mandibular shifts are common orthodontic issues.
  • These crossbites are not self-correcting and can lead to skeletal, dental, and muscular adaptations.
  • Untreated crossbites may be associated with temporomandibular disorders and are difficult to treat in adults.

Purpose of the Study:

  • To review the evidence supporting early orthodontic intervention for unilateral posterior crossbites with mandibular shifts.
  • To determine the optimal timing and methods for treating this condition.

Main Methods:

  • Literature review of studies on unilateral posterior crossbites and their treatment.
  • Analysis of evidence regarding the self-correction, temporomandibular disorder association, and adaptive changes related to crossbites.

Main Results:

  • Early orthodontic treatment of unilateral posterior crossbites with mandibular shifts yields high success rates.
  • The late deciduous or early mixed dentition stage is the most appropriate time for intervention.
  • Treatment involves maxillary arch expansion, occlusal interference removal, and elimination of the mandibular shift.

Conclusions:

  • Early treatment is strongly recommended for unilateral posterior crossbites with mandibular shifts.
  • General practitioners and pediatric dentists should be proficient in diagnosing and managing or referring these cases.
  • Timely intervention maximizes treatment success and prevents long-term complications.

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