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Class II subdivision with skeletal transverse maxillary deficit treated by single-sitting bone-borne appliance
The Angle Orthodontist
|December 8, 2020
Summary
This case report details successful orthodontic treatment using a single bone-borne appliance for maxillary expansion and molar distalization in a young adult. Digital planning and precise miniscrew placement led to effective skeletal changes and bite correction with clear aligners.
Area of Science:
- Orthodontics
- Dental Implantology
- Digital Dentistry
Background:
- Adult orthodontic treatment presents challenges in achieving significant skeletal changes.
- Maxillary expansion and molar distalization are often required for complex malocclusions.
- Miniscrew-supported appliances offer enhanced biomechanical control in orthodontics.
Observation:
- A novel bone-borne appliance was designed using digital planning and 3D printing for precise miniscrew placement.
- The appliance facilitated simultaneous skeletal maxillary expansion and unilateral molar distalization.
- Treatment involved 40 activations of the appliance followed by clear aligner therapy.
Findings:
- Digital planning and a single-sitting delivery of the bone-borne appliance enabled pure skeletal maxillary expansion.
- Palatal median suture opening and resolution of a left crossbite were achieved.
- Successful Class I molar relationship was obtained in approximately 5 months without anterior anchorage loss, followed by effective clear aligner treatment.
Implications:
- This approach offers an efficient and effective method for complex orthodontic corrections in young adults.
- Digital planning and bone-borne appliances can minimize treatment time and side effects.
- This technique provides a viable alternative for adult patients requiring significant skeletal and dental movements.
