Abstract
Causes of hoarseness among children can be found in other than organic changes of the vocal cords. They include various functional changes of the vocal cords that manifest various types of insufficient approximation of the two cords. The authors classified these functional causes of hoarseness by the appearance of the glottic space at phonation as follows:
1. I-letter Type
2. Triangular Type
3. Posterior Triangular Type
4. Uneven Closure Type
5. Wrinkled Closure Type
6. Oblique Type
The authors suggested that these failures in closure may be caused by improper ways of phonation and a specific voice therapy would help these patients.
