Palatal Expansion
Widening the palate for a broader smile, more room for teeth, and in selected cases airway support when advised by a sleep physician or ENT.
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What is Palatal Expansion?
Palatal expansion is an orthodontic procedure that widens the upper jaw (maxilla). It can create room for crowded teeth, correct crossbites, and create a broader smile.
When airway or sleep concerns are involved, we coordinate with sleep physicians and ENTs. Expansion may be considered only when it is orthodontically appropriate and medically recommended; sleep-disordered breathing should be diagnosed by a sleep physician, often through a polysomnograph sleep study.
Benefits of Palatal Expansion
Dental Benefits
- Creates space for crowded teeth
- Corrects crossbites
- Creates a broader, fuller smile
- Improves bite function
Airway Considerations
- May support nasal airflow in selected patients
- Requires appropriate medical diagnosis when sleep concerns are present
- May be part of a multidisciplinary care plan
Types of Palatal Expansion
RPE (Children)
Rapid Palatal Expansion works in children before the palatal suture fuses. A simple appliance attached to the teeth applies gentle pressure to widen the palate.
Best for: Ages 7-14
Herbst + Expansion
The Herbst appliance can be combined with an expander to simultaneously widen the palate and advance the lower jaw in growing patients.
Best for: Teens with multiple issues
MARPE (Adults)
Miniscrew-Assisted Rapid Palatal Expansion uses temporary anchors to achieve expansion in adults whose suture has fused — without surgery.
Best for: Adults 18+
The Expansion Process
- Evaluation: 3D imaging to assess bone and plan treatment
- Appliance Placement: The expander is custom-made and attached
- Activation: You'll turn the expander daily (usually for 2-4 weeks)
- Stabilization: The appliance remains in place while bone fills in (several months)
- Retention: Continued orthodontic treatment or retainers to maintain expansion
Expansion is easiest in children before the palatal suture fuses (typically ages 7-14). Early evaluation is key!