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안태섭,양상일,신효근 한국음성과학회 1997 음성과학 Vol.1 No.-
Cleft Palate speech appears to have hyper/hyponasality with velopharyngeal insufficiency and articulation disorders. Previous studies on Cleft Palate speech have shown that speech tends to have lower airflow and air pressure. To examine the aerodynamic characteristics of Cleft Palate speech, Aerophone II Voice function Analyzer was used. We measured sound pressure level, airflow, air pressure and glottal power. Three Cleft Palate adults and five normal adults participated in this experiment. The test words are composed of: (1) the sustained vowel /o/ (2) /CiCi/, where C is one of three different stop consonants in KOrean (3) /bimi/. Subjects were asked to produce /bimi/ five times without opening their lips. All the data was statistically tested by t-test for Cleft Palate patients before operation groups and control groups and paired t-test for Cleft Palate patients before and after operation groups. The results were as follw : ① Cleft Palate patients generally speak with incomplete oral closure and lower oral air pressure. As a result, the SPL of Cleft Palate before operation is 3 ㏈ lower than control groups. ② Airflow of Cleft Palate in phonation and articulation is lower than that of control groups. However it increased after operation. Lung volume and mean airflow in phonation are significantly increased (p<0.05). ③ Although velopharyngeal function (velar opening rate) of Cleft Palate is poor in comparison with control groups, it was recovered after operation. In this event maximum flow rate and mean airflow rate are significantly increased (p<0.05). ④ Air pressure of Cleft Palate in speech is lower than that of control groups. In general, the air pressure of Cleft Palate increased after operation. In this event air pressure of glottalized consonant is significantly increased (p<0.04). ⑤ Glottal Power(mean power, mean efficient and mean resistant) of Cleft Palate patients is lower than that of control groupsl But mean efficient and mean resistant of Cleft Palate patients increased significantly (p<0.05) after operation.
안태섭,박승오,신효근,김오환 全北大學校 齒醫學硏究所 1990 전북치대논문집 Vol.8 No.1
This is a additive and retrospective study on maxillofacial fractures. This study was based on a series of 597 patients with maxillofacial fractures treated at Dept. of Oral & Maxillofacial Surgery, College of Dentistry, ChonBuk National University from Jan. 1984 to Jun. 1990. the results obtained were as follows : 1. The ratio of male/female was 4.7 : 1, and 3rd decade (40.7%) was the highest age group in incidence. 2. The most highest monthly incidence was Oct. (11.4%) 3. The most frequent maxillofacial fracture site was mandible (68.9%), and zygoma & zygomatic arch (14.3%), maxilla (12.6%) and nasal bone (4.2%) were next in order of frequency. 4. Traffic accidents (47.4%) was the most common cause of maxillofacial fractures. 5. The most frequent chief complaint was painful swelling (41.7%). 6. In mandibular fractures, the most frequent fracture site was symphyseal area(34.1%) and simple fracture was the most frequent type of fracture(64.7%). 7. In maxillary fractures, fracture with other facial bones (67.0%) was more frequent than fracture of maxilla only. The most frequent type of fracture was unilateral fractures (35.2%). 8. In fractures of zygoma complex, zygoma & zygoamtic arch fracture was the most frequent fracture type (38.9%), zygoma fracture (33.0%), zygomatic arch fracture (28.1%) were next in order. 9. Open reduction was major method of treatment in maxillofacial fractures except nasal bone : mandible (76.8%), maxilla (66.0%) and zygoma complex (81.8%). 10. Maxillofacial fractures were most frequently combined with head injury (33.6%), lower extremities (21.2%) and upper extremities (17.3%0 were next in order.
구강악안면 외상환자의 조직손상의 양상 및 정도에 관한 임상적 연구
신효근,소병수,안태섭,진우성,윤철희 大韓顎顔面成形再建外科學會 1995 Maxillofacial Plastic Reconstructive Surgery Vol.17 No.3
This is a clinical and retropective study on th patients with oral and maxillofacial trauma. This study was based on a series of 917 patients were treated as in-patients, at Chon-buk National University Hospital, during the period of Jan., 1989 through Dec., 1993. The results obtained were as follows : 1. The ratio of men to women were 3.59 : 1 in oral and maxillofacial injuries, 3.92 : 1 in facial bone fractures, and 3.18 : 1 in soft tissue injuries. 2. The oral and maxillofacial injuries occurred most frequently in the third decade(32.2%), and fourth, second, fifth decade in orders. 3. The major etiologic factors were traffic accident(57.4%) and fall-down(17.1%), interpersonal accident(16.6%), and industrial accident were next in order of frequency. 4. The incidence of facial bone fracture was 72.1%, soft tissue injury 58.8%, and dental injury 40.5%. 5. The most common site of fracture were mandible(62.9%) and maxilla(19.9%), zygoma and zygomatic arch(18.7%), and nasal bone(4.7%) were next in order of frequency. 6. The most common type of soft tissue injury was laceration(51.0%). The lesion of soft tissue injuries were mostly 1 or 2 lesions and deep.