Maxillofac Plast Reconstr Surg.  2017 Apr;39(4):9. 10.1186/s40902-017-0108-2.

The comparative study of resonance disorders for Vietnamese and Korean cleft palate speakers using nasometer

• Shin YJ
• Kim Y
• Kim HG

• KMID: 2378494
• DOI: http://doi.org/10.1186/s40902-017-0108-2

Abstract

BACKGROUND
Nasalance is used to evaluate the velopharyngeal incompetence in clinical diagnoses using a nasometer. The aim of this study is to find the nasalance differences between Vietnamese cleft palate children and Korean cleft palate children by measuring the nasalance of five oral vowels.
METHODS
Ten Vietnamese cleft palate children after surgery, three Vietnamese children for the control group, and ten Korean cleft palate children after surgery with the same age participated in this experimentation. Instead of Korean control, the standard value of Korean version of the simplified nasometric assessment procedures (kSNAP) was used. RESULT: The results are as follows: (1) the highest nasalance score among the Vietnamese normal vowels is the low vowel /a/; however, that of Korean normal vowels is the high vowel /i/. (2) The average nasalance score of Korean cleft palate vowels is 18% higher than that of Vietnamese cleft palate vowels. There was a nasalance score of over 45% among the vowels /e/ and /i/ in Vietnamese cleft palate patients and /i/, /o/, and /u/ in Korean cleft palate patients.
CONCLUSION
These different nasalance scores of the same vowels seem to cause an ethnic difference between Vietnamese and Korean cleft palate children.

Keyword

Nasalance; Ethnic difference; Nasometer; Cleft palate

MeSH Terms

Asian Continental Ancestry Group*
Child
Cleft Palate*
Diagnosis
Humans
Velopharyngeal Insufficiency