Relationship between voice function and skeletal effects of rapid maxillary expansion.

Relationship between voice function and skeletal effects of rapid maxillary expansion.

Angle Orthod. 2017 Nov 15;:

Authors: Bilgiç F, Damlar İ, Sürmelioğlu Ö, Sözer ÖA, Tatlı U

Abstract
OBJECTIVE: 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.

PMID: 29140720 [PubMed - as supplied by publisher]

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