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Miniscrew-Supported Palatal Expansion in Adults: A Clinical Case Report
Enrique Miranda-Astocondor1, Franz Tito Coronel-Zubiate2, Betsy Quispe-Quispe3
1Faculty of Dentistry, National University Federico Villarreal, Lima, Peru.
Case Reports in Dentistry
|January 26, 2026
Summary
Miniscrew-assisted rapid palatal expansion (MARPE) effectively treated adult maxillary transverse deficiency. This orthodontic treatment showed significant midpalatal suture opening with minimal dental and facial soft tissue impact.
Area of Science:
- Orthodontics
- Maxillofacial Surgery
Background:
- Maxillary transverse deficiency is a common orthodontic challenge in adults.
- Adults present increased resistance to midpalatal suture separation, complicating treatment.
- Miniscrew-assisted rapid palatal expansion (MARPE) offers skeletal anchorage, minimizing dental side effects.
Purpose of the Study:
- To describe the clinical management of adult maxillary transverse deficiency using MARPE and corticopuncture.
- To evaluate the impact of MARPE on midpalatal suture opening and adjacent dental structures.
- To assess changes in facial soft tissues following MARPE treatment.
Main Methods:
- A case report following CARE guidelines for a young adult with maxillary transverse deformity.
- MARPE combined with corticopuncture, with treatment planning via tomography.
- Gradual activation of MARPE under clinical and tomographic monitoring.
Main Results:
- Tomography confirmed a 5mm parallel opening of the midpalatal suture.
- No adverse effects were observed on adjacent teeth.
- 3D facial reconstruction showed minimal, clinically insignificant frontal soft tissue changes.
Conclusions:
- MARPE expansion therapy is an effective and safe treatment for adult maxillary transverse deficiency.
- The treatment demonstrated minimal impact on dental and facial structures.
- MARPE offers a viable alternative for managing complex orthodontic cases in adults.
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