Dental and skeletal changes on cone-beam computed tomography after rapid maxillary expansion using rapid palatal expander for the growing children
Overview
Abstract:
Objective
to evaluate the changes of maxillary bones and teeth after rapid expansion using rapid palatal expander (RPE).
Subjects
30 Vietnamese children in their growing ages between 6 and 16, with cervical vertebrae at CS2, CS3, CS4 stage on Cephalometric x-rays, were diagnosed with maxillary constriction according to Yonsei index. The patients were treated with the RPE and evaluated before and a month after the expansion on Cone-beam computed tomography (CBCT).
Results
After a month of post-expansion, the maxillary arch width increased by 2.35 ± 1.92 mm with p < 0.05 and when comparing with the mandible, it reached the normal value of Yonsei index (AWU6 – AWL6 was −0,0.33 ± 1.57 mm). The inter-molar width increased by 2.91 ± 0.54 with p < 0.001. No statistically significant difference of the palatal depth was found before and after expansion.
Conclusions
RPE increased the maxillary arch and inter-molar widths and resolved the maxillary constriction in growing children on CBCT.
Keyword(s): Rapid palatal expander, Growing children, CBCT, Maxillary constriction
| Journal | Oral and maxillofacial surgery cases |
| Volume | 7 |
| Issue number | 4 |
| Publication status | Published - Dec-2021 |
| ISBN | 2214 5419 |