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Skeletal anchorage system for open-bite correction
M Umemori1, J Sugawara, H Mitani
1School of Dentistry, Tohoku University, Sendai, Japan. umemori@orthod.dent.tohoku.ac.jp
Summary
A novel skeletal anchorage system using titanium miniplates effectively intruded lower molars, significantly improving open-bite malocclusion in two patients. This orthodontic approach demonstrated excellent control over the occlusal plane without adverse effects.
Area of Science:
- Orthodontics and Dental Implantology
- Biomaterials and Medical Devices
Background:
- Open-bite malocclusion presents significant orthodontic challenges.
- Traditional methods for correcting open bites often have limitations.
- Skeletal anchorage systems offer a promising alternative for complex tooth movements.
Observation:
- A titanium miniplate skeletal anchorage system was developed for temporary implantation.
- The system was applied to intrude lower molars in two severe open-bite cases.
- Miniplates were fixed buccally near the apical regions of lower first and second molars.
Findings:
- Successful intrusion of lower molars by 3-5 mm was achieved using elastic threads.
- Significant improvement in open-bite malocclusion was observed.
- Minimal extrusion of lower incisors and effective control of occlusal plane canting were noted.
Implications:
- This skeletal anchorage system provides an effective treatment modality for severe open-bite malocclusion.
- The technique offers predictable molar intrusion and occlusal plane control.
- Further research can explore broader applications of this system in orthodontics.