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Use of cephalometry in diagnosing resonance disorders
1Nair Hospital Dental College, Bombay Central, India.
Summary
Patients with cleft palate speech exhibit larger oronasopharyngeal dimensions, specifically increased nasopharyngeal width and depth. This leads to a larger pharyngeal cavity volume compared to individuals with normal or nasal speech.
Area of Science:
- Craniofacial anatomy
- Speech pathology
- Medical imaging
Background:
- Oronasopharyngeal dimensions significantly influence speech production.
- Cleft palate speech is often associated with altered vocal tract anatomy.
- Understanding these anatomical differences is crucial for effective speech therapy.
Purpose of the Study:
- To compare oronasopharyngeal dimensions in patients with normal speech, nasality, and cleft palate speech.
- To identify significant cephalometric differences between these groups.
- To correlate anatomical variations with speech characteristics.
Main Methods:
- A comparative cephalometric study was conducted.
- 20 patients with normal speech, 20 with nasality, and 22 with cleft palate speech were included.
- Cephalometric landmarks from Proffit, McGlove, and Ricketts were utilized.
Main Results:
- Patients with cleft palate speech showed increased nasopharyngeal width and depth.
- A consequential increase in pharyngeal cavity volume was observed in the cleft palate group.
- Significant differences in oronasopharyngeal dimensions were found between the groups.
Conclusions:
- Cleft palate speech is associated with a larger nasopharynx and pharyngeal cavity volume.
- These anatomical findings provide insights into the mechanisms of cleft palate speech.
- Cephalometric analysis is valuable for understanding speech-related anatomical variations.