Velopharyngeal Relationships of /i/ and /s/ as Seen Cephalometrically for Persons with Suspected Incompetence Measurements of velopharyngeal gaps were obtained for 110 subjects with suspected velopharyngeal incompetence. Cephalometric x rays during a high vowel, /i/, and a sustained voiceless sibilant, /s/, were compared. Velopharyngeal gaps for the two phonemes differed in group means and for most individual subjects, with greater gaps being found for ... Articles
Articles  |   May 01, 1978
Velopharyngeal Relationships of /i/ and /s/ as Seen Cephalometrically for Persons with Suspected Incompetence
 
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Articles   |   May 01, 1978
Velopharyngeal Relationships of /i/ and /s/ as Seen Cephalometrically for Persons with Suspected Incompetence
Journal of Speech and Hearing Disorders, May 1978, Vol. 43, 185-191. doi:10.1044/jshd.4302.185
History: Received August 5, 1976 , Accepted August 9, 1977
 
Journal of Speech and Hearing Disorders, May 1978, Vol. 43, 185-191. doi:10.1044/jshd.4302.185
History: Received August 5, 1976; Accepted August 9, 1977

Measurements of velopharyngeal gaps were obtained for 110 subjects with suspected velopharyngeal incompetence. Cephalometric x rays during a high vowel, /i/, and a sustained voiceless sibilant, /s/, were compared. Velopharyngeal gaps for the two phonemes differed in group means and for most individual subjects, with greater gaps being found for /i/ than for /s/. Persons with smaller gaps generally were found to have /i/ gaps in the absence of /s/ gaps, and greater /i-s/ discrepancy. Relationships between velum and pharyngeal wall perceived cephalometrically during /i/ and /s/ were not found to be equivalent. Generally, the /i/ radiograph agreed better with presumed velopharyngeal incompetence.

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