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The effects of rapid maxillary expansion on voice function
The Angle Orthodontist
|July 28, 2016
Summary
Rapid maxillary expansion (RME) did not significantly alter vocal function in patients with bilateral maxillary crossbite. This orthodontic treatment can be safely employed without impacting voice quality or resonance.
Area of Science:
- Orthodontics
- Speech-Language Pathology
- Acoustic Analysis
Background:
- Bilateral maxillary crossbite can affect facial structure and potentially influence vocal function.
- Rapid maxillary expansion (RME) is a common orthodontic treatment for correcting maxillary constriction.
Purpose of the Study:
- To investigate the impact of RME on the acoustic parameters of voice in patients with bilateral maxillary crossbite.
- To determine if RME influences vocal quality and resonance.
Main Methods:
- Prospective, controlled clinical study with 40 participants (20 in treatment group, 20 in control group).
- Acoustic voice samples collected at two time points (T1 and T2) using the Multi-Dimensional Voice Program (MDVP) and Computerized Speech Lab (CSL).
Main Results:
- No statistically significant differences were observed in any acoustic voice parameters between the RME treatment group and the control group.
- The data indicates no measurable change in vocal function due to rapid maxillary expansion.
Conclusions:
- Rapid maxillary expansion (RME) does not adversely affect vocal quality or resonance.
- RME can be considered a safe orthodontic intervention for patients with bilateral maxillary crossbite regarding vocal function.
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