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VOLUME 13 , ISSUE 6 ( November-December, 2022 ) > List of Articles


Skeletal Changes after Miniscrew-assisted Rapid Palatal Expansion in Young Adults: A Cone-beam Computed Tomography Technique Study

Pragati Nakra, Akhil Shetty, Sanjeevani Ratti

Keywords : Buccal bone, Cone-beam computed tomography, Miniscrew-assisted rapid palatal expansion, Skeletal expansion

Citation Information : Nakra P, Shetty A, Ratti S. Skeletal Changes after Miniscrew-assisted Rapid Palatal Expansion in Young Adults: A Cone-beam Computed Tomography Technique Study. World J Dent 2022; 13 (6):617-622.

DOI: 10.5005/jp-journals-10015-2124

License: CC BY-NC 4.0

Published Online: 26-08-2022

Copyright Statement:  Copyright © 2022; The Author(s).


Aim: To evaluate the skeletal changes in buccal bone thickness (BBT) and height in subjects treated with miniscrew-assisted rapid palatal expansion (MARPE) using Cone-beam Computed Tomography (CBCT). Materials and methods: CBCT records of 19 patients (age 18–30 years) were selected from the archives. The scans were taken before and immediately after the completion of expansion treatment using the MARPE appliance. These CBCT scans were calibrated and analyzed. The skeletal, dental, and airway parameters were evaluated for every patient at selected landmarks and a comparison was made before and after expansion. Skeletal measurements consisted of BBT, buccal bone height loss (BBHL), and midpalatal suture density ratio (MPSD). A paired t-test was employed to compare the means of the skeletal parameters pretreatment and posttreatment with the significance set at p < 0.05. Results: Statistically significant differences were noted in the skeletal parameters posttreatment. BBT decreased by 1.14 mm while buccal bone height reduced by 1.84 mm with a decrease in MPSD indicating successful expansion. Conclusion: MARPE treatment results in significant skeletal changes. The skeletal expansion opens up new avenues of treatment in contemporary orthodontics for mature patients. Clinical significance: MARPE is an effective technique for skeletal expansion to correct the transverse discrepancy in adults without the use of surgery.

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