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The Herbst appliance--its biologic effects and clinical use
American Journal of Orthodontics
|January 1, 1985
Summary
The Herbst appliance effectively treats Class II malocclusions in growing patients, particularly those with a brachyfacial growth pattern. Post-treatment retention is recommended to prevent relapses.
Area of Science:
- Orthodontics
- Dentofacial Orthopedics
Background:
- The Herbst appliance is a fixed intraoral device used for orthopedic correction of Class II malocclusions.
- This survey reviews appliance design, construction, and clinical application.
Observation:
- The study analyzed the effects of the Herbst appliance on the dentofacial complex and masticatory system using dental casts, cephalometric radiography, and electromyography.
- Clinical cases treated with the Herbst appliance were followed for up to 5 years post-treatment.
Findings:
- The Herbst appliance is most effective for Class II malocclusions in growing individuals, especially those with a brachyfacial growth pattern.
- Treatment success is dependent on proper patient selection and appliance indication; it should not be considered a last resort.
- Potential risk factors for relapse include unfavorable growth, unstable occlusion, and persistent oral habits.
Implications:
- The Herbst appliance offers a predictable treatment for specific malocclusions during the growth phase.
- Adaptation of hard and soft tissues to the new mandibular position requires adequate post-treatment retention, ideally with a removable functional appliance.