Bilgic, FundagulDamlar, IbrahimSurmelioglu, OzgurSozer, Ozlem AkinciTatli, Ufuk2024-09-182024-09-1820180003-32191945-7103https://doi.org/10.2319/062717-431.1https://hdl.handle.net/20.500.12483/11978Objective: To evaluate the effects of rapid maxillary expansion (RME) on the vocal quality, maxillary central incisors, midpalatal suture, and nasal cavity in patients with maxillary crossbite. Materials and Methods: Coronal CT scans of 30 subjects (14 boys, 16 girls; mean age, 12.01 +/- 0.75) were taken before RME (T0), and at the end of the expansion phase (T1). Voice samples of all patients were recorded with a high-quality condenser microphone (RODE NT2-A) on a desktop computer at T0 and T1. Statistical analyses were performed using a paired-sample t-test. The degree of association between the changes in the voice parameters and nasal width was assessed with Pearson's correlation. Results: RME treatment produced a significant increase in the transverse dimensions of the midpalatal suture and nasal cavity between T0 and T1 (P < .05). The maximum F0 and jitter (%) results were shown to decrease statistically significantly from T0 to T1 (P < .001 and P = .042, respectively). Between T0 and T1, shimmer (%) and shimmer (dB) exhibited statistically significant increases (P = .037 and P = .019, respectively). Conclusions: After RME therapy, voice quality differences were found to be associated with increases in nasal width.eninfo:eu-repo/semantics/openAccessRapid maxillary expansionVoice qualityNasal widthArticle88220220710.2319/062717-431.1291407202-s2.0-85043594048Q1WOS:000426428400010Q2