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Intraoral craniofacial manipulation by using MRI appliance
1Tufts University School of Dental Medicine, Boston, MA 02111, USA.
The Journal of Clinical Pediatric Dentistry
|November 2, 2001
Summary
The Maxillary-Rotation-Impaction Appliance (MRI) successfully rotated and impacted the maxilla, followed by transverse expansion for arch widening. This orthodontic approach achieved ideal facial bone and tooth positioning with a Class I occlusion.
Area of Science:
- Orthodontics
- Craniofacial Surgery
Background:
- Maxillary hypoplasia and transverse discrepancies often require complex orthodontic interventions.
- Surgical-orthodontic management aims to correct skeletal and dental relationships for improved facial aesthetics and function.
Observation:
- A novel approach utilizing the Maxillary-Rotation-Impaction (MRI) appliance was employed.
- The MRI appliance facilitated controlled rotation and impaction of the maxilla.
- Subsequent use of a transverse expansion screw addressed maxillary arch width deficiency.
Findings:
- The combined MRI appliance and expansion screw technique effectively corrected the transverse and vertical discrepancies of the maxilla.
- Fixed orthodontic appliances were used for final alignment, resulting in a Class I occlusion.
- The treatment achieved harmonious positioning of facial bones and dental structures.
Implications:
- This case demonstrates a viable orthodontic strategy for managing complex maxillary deficiencies.
- The MRI appliance offers a predictable method for maxillary rotation and impaction.
- Achieving ideal facial aesthetics and a stable Class I occlusion is possible with this combined approach.