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Surgically assisted rapid maxillary expansion in adults
M A Pogrel1, L B Kaban, K Vargervik
1University of California, San Francisco, School of Dentistry.
The International Journal of Adult Orthodontics and Orthognathic Surgery
|January 1, 1992
Summary
Surgically assisted rapid maxillary expansion effectively increased adult maxillary width by an average of 7.5 mm. This safe and reliable procedure demonstrated stable results over 12 months with minimal relapse.
Area of Science:
- Orthodontics
- Oral and Maxillofacial Surgery
- Craniofacial Surgery
Background:
- Maxillary hypoplasia in adults often requires surgical intervention for correction.
- Traditional rapid maxillary expansion (RME) has limitations in adult skeletal expansion.
Purpose of the Study:
- To evaluate the efficacy and stability of surgically assisted rapid maxillary expansion (SARME) in adults with maxillary width discrepancy.
- To assess the safety and morbidity associated with the SARME procedure.
Main Methods:
- Twelve adult patients with maxillary width discrepancy >5 mm underwent SARME.
- The procedure involved bilateral zygomatic buttress and midpalatal osteotomies with a tooth-borne device.
- Measurements were taken in the first molar region over a 12-month follow-up period.
Main Results:
- A mean skeletal expansion of 7.5 mm (range 6-13 mm) was achieved in 3 weeks.
- Expansion remained stable with a mean relapse of 0.88 mm over 12 months.
- Postoperative morbidity was limited to mild discomfort.
Conclusions:
- SARME is a safe, simple, and reliable method for increasing adult maxillary skeletal width.
- The procedure yields stable long-term results with minimal relapse.
- Further research is needed to analyze 3D skeletal and dental changes and long-term stability.