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The effect of Fränkel's function regulator type III on the apical base.
R R Miethke1, S Lindenau, K Dietrich
1Department of Orthodontics and Dentofacial Orthopaedics, Centre of Dentistry, Universitätsklinikum Charité, Medical Faculty of the Humboldt-University of Berlin, Germany.
European Journal of Orthodontics
|July 2, 2003
Summary
Fränkel
Area of Science:
- Orthodontics and Dentofacial Orthopedics
- Craniofacial Growth and Development
Background:
- Orthodontic treatment for Class III malocclusion often involves controversial discussions regarding dentoalveolar and skeletal effects.
- Understanding the impact of functional appliances on facial growth is crucial for effective treatment planning.
Purpose of the Study:
- To evaluate the dentoalveolar and skeletal changes in Class III patients treated with Fränkel's function regulator type III (FR III).
- To assess the effects of FR III therapy on maxillary and mandibular growth patterns.
Main Methods:
- Retrospective analysis of 42 Class III patients treated with FR III.
- Comparison with a control group of 16 patients with minor malocclusion.
- Evaluation of dental study models using a sophisticated measuring system, including cusp inclination and apical base measurements.
Main Results:
- Fränkel's function regulator type III (FR III) therapy demonstrated stimulation of maxillary development, promoting a more physiological growth pattern.
- Mandibular prognathism remained evident in Class III patients post-treatment.
- No significant difference in mandibular growth was observed between the treated and control groups.
Conclusions:
- FR III therapy positively influences maxillary growth in Class III malocclusions.
- While FR III aids maxillary development, it does not fully resolve mandibular prognathism.
- Further research may explore combined therapies for comprehensive Class III correction.