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Related Experiment Videos

Class III malocclusions: the choice between orthodontics or surgery

P F McSherry1

  • 1Department of Clinical Orthodontics, School of Dentistry, Royal Group of Hospitals and Dental Hospital Trust, Belfast.

Journal of the Irish Dental Association
|January 1, 1997
PubMed
Summary

Successful orthodontic treatment for Class III malocclusions depends on factors like low maxillomandibular angle and symmetric growth. Unfavorable growth and large negative overjet often lead to treatment failure, necessitating careful consideration of orthodontic or surgical options.

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Area of Science:

  • Dentistry
  • Orthodontics
  • Craniofacial Biology

Background:

  • Class III malocclusions present complex challenges in orthodontic treatment.
  • Understanding factors influencing treatment success is crucial for effective management.
  • Orthopaedic and surgical interventions are common treatment modalities.

Purpose of the Study:

  • To evaluate the success factors in orthodontic treatment of Class III malocclusions.
  • To discuss the scope of orthopaedic appliance treatment for Class III cases.
  • To analyze determinants for choosing between orthodontic and surgical treatment, and assess long-term stability.

Main Methods:

  • Review of clinical cases with Class III malocclusions.
  • Analysis of cephalometric variables, including maxillomandibular planes angle and overjet.

Related Experiment Videos

  • Evaluation of growth patterns and compensatory mechanisms.
  • Discussion of treatment outcomes with orthopaedic appliances versus surgical options.

    • Main Results:

    • Successful orthodontic treatment is associated with a low maxillomandibular planes angle, minimal compensation, a small reverse overjet, and a symmetric growth pattern.
    • Treatment failure is linked to unfavorable growth patterns, high degrees of compensation, and large negative overjets.
    • The efficacy of orthopaedic appliances in Class III malocclusions is discussed, alongside factors influencing the orthodontic-surgical decision.

    Conclusions:

    • Orthodontic treatment success in Class III malocclusions is predictable based on specific cephalometric and growth parameters.
    • Careful case selection and understanding of influencing factors are vital for optimizing outcomes.
    • Long-term stability remains a key consideration in the management of Class III malocclusions.