Maxillofacial Plastic and Reconstructive Surgery

Korean Association of Maxillofacial Plastic and Reconstructive Surgeons (대한악안면성형재건외과학회)
권호 표지

SPECTRAL CHARACTERISTICS OF RESONANCE DISORDERS IN SUBMUCOSAL TYPE CLEFT PALATE PATIENTS

점막하 구개열 환자 공명장애의 스펙트럼 특성 연구

  • Kim, Hyun-Chul (Department of Oral & Maxillofacial surgery, School of Dentistry) ;
  • Leem, Dae-Ho (Department of Oral & Maxillofacial surgery, School of Dentistry) ;
  • Baek, Jin-A (Department of Oral & Maxillofacial surgery, School of Dentistry, Chonbuk National University) ;
  • Shin, Hyo-Keun (Department of Oral & Maxillofacial surgery, School of Dentistry, Chonbuk National University) ;
  • Kim, Oh-Hwan (Department of Oral & Maxillofacial surgery, School of Dentistry, Chonbuk National University) ;
  • Kim, Hyun-Ki (Reaearch Institute of Speech Science, Chonbuk National University)
  • 김현철 (전북대학교 치과대학 구강악안면외과학교실) ;
  • 임대호 (전북대학교 치과대학 구강악안면외과학교실) ;
  • 백진아 (전북대학교 치과대학 구강악안면외과학교실) ;
  • 신효근 (전북대학교 치과대학 구강악안면외과학교실) ;
  • 김오환 (전북대학교 치과대학 구강악안면외과학교실) ;
  • 김현기 (전북대학교 음성과학연구소)
  • Published : 2006.07.31
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Abstract

Submucosal type cleft palate is subdivision of the cleft palate. It is very difficult to find submucosal cleft, because when we exam submucosal type cleft palate patients, it seems to be normal. But in fact, there are abnormal union of palatal muscles of submucosal type cleft palate patients. Because of late detection, the treatment - for example, the operation or the speech therapy - for the submucosal type cleft palate patient usually becomes late. Some patients visited our hospital due to speech disorder nevertheless normal intraoral appearance. After precise intraoral examination, we found out submucosal cleft palate. We evaluated the speech before and after surgery of these patients. In this study, we want to find the objective characteristics of submucosal type cleft palate patients, comparing with the normal and the complete cleft palate patients. Experimental groups were 10 submucosal type cleft palate patients and 10 complete cleft palate patients who got the operation in our hospital. And, the controls were 10 normal person. The sentence patterns using in this study were simple 5 vowels. Using CSL program we evaluated the Formant, Bandwidth. We analized the spectral characteristics of speech signals of 3 groups, before and after the operation. In most cases, the formant scores were higher in experimental groups (complete cleft palate group and submucosal type cleft palate group) than controls. There were small differences when speeching /a/, /i/, /e/ between experimental groups and control groups, large differences when speeching /o/, /u/. After surgery the formant scores were decreased in experimental groups (complete cleft palate group and submucosal type cleft palate group). In bandwidth scores, there were no significant differences between experimental groups and controls.

Keywords

References

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