Abstract
Dentoskeletal changes in minimally invasive surgically assisted rapid palatal expansion
(SARPE) were evaluated using cone beam computed tomography (CBCT). This was a prospective
study of 30 patients who underwent minimally invasive SARPE performed under local
anaesthesia plus sedation by the same surgeon, in an ambulatory setting. Pre- and
postoperative CBCT images were obtained for each patient. A statistically significant
increase in the linear transverse dimensions of the maxilla occurred systematically.
In the canine region, a mean increase of 5.84 mm occurred at the apex level and 7.82 mm
at the crown level. These dimensions were 4.83 mm and 7.68 mm, respectively, in the
molar region. The cross-sectional area of the maxilla increased by a mean 12.9 mm2 at the palate level and 23.3 mm2 at the crown level. Dental inclination to the buccal aspect was detected (mean 6.1°
at the canines and 8.4° at the first molars). The alveolar process tipped buccally
10° at the molar level. Nasal width increased a mean of 3.0 mm at the canine level.
Through a three-dimensional analysis, this study found that minimally invasive SARPE
was effective in the correction of transverse maxillary discrepancies> 5 mm in non-growing
patients. Although dental inclination to the buccal aspect occurred, significant expansion
of the maxilla at the skeletal and dentoalveolar levels was confirmed.
Keywords
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Article info
Publication history
Published online: July 28, 2022
Accepted:
July 8,
2022
Identification
Copyright
© 2022 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.
