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下顎骨顆頭에 발생한 骨軟骨腫에 의한 非對稱 顔貌의 外科的 治驗例
허홍열(HUH H Y),조상기(CHO S K),진우정(JIN W J),신효근(SHIN H K),김오환(KIM O W) 대한구강악안면외과학회 1987 대한구강악안면외과학회지 Vol.13 No.2
The Osteochondroma is the most common of all benign tumors of bone. Most Osteochondromas involve the long bone., and especially the lower metaphysis of the femur and the upper metaphysis of the tibia. They are also seen in the ilium, scapula, vertebrae, and occasionally in the mandible. Osteochondroma is characterized by growing hyaline cartilage at the periphery of the tumor, which ossifies upon cessation of growth. This is to report 4 cases of Osteochondroma occured in mandibular condyle. We treated 4 patients of Osteochondroma associated with facial asymmetry via various orthognatic surgery methods.
Midfacial deformity에 대한 Le Fort Ⅱ 골절단술을 이용한 외과적 교정술의 증례
허홍열(Huh H Y),진우정(Jin W J),신효근(Shin H K),김오환(Kim O W) 대한구강악안면외과학회 1987 대한구강악안면외과학회지 Vol.13 No.1
Clef lip and palate deformities are often part of a multifaceted problem, involving not only the palate, premaxilla, and philtrum, but frequently the entire middle third of the face. Le Fort Ⅱ midfacial osteotomies and advancement must be considered in instances when the patient assessment reveals that the nasomaxillary complex is retropositioned, the nose is short, and there is a class Ⅲ malocclusion. This is a case of secondary mid-facial hypoplasia including short nose and class Ⅲ malocclusion, which was corrected by Le Fort Ⅱ Osteotomy.
허홍열(Huh H Y),진우정(Jin W J),신효근(Shin H K),김오환(Kim O W) 대한구강악안면외과학회 1988 대한구강악안면외과학회지 Vol.14 No.1
Malignant fibrous histiocytoma has been a frequent tumor among soft tissue sarcoma since its early description by O Brien and Stout. It is an unusual neoplasm in the head and neck. This is malignant fibrous histiocytoma of maxilla which occured in a 51-year-old man. Histologic pattern was designated as storiform - pleomorphic type by classification of Enzinger. Treatment was performed with combined therapy using mainly chemotherapy and radiation therapy. The patient shows no evidence of recurrence for 27 months until present.
고승오(Koh S O),진우정(Jin W J),신효근(Shin H K),김오환(Kim O W) 대한구강악안면외과학회 1988 대한구강악안면외과학회지 Vol.14 No.1
Disease of the maxillary sinus can be classified as inflammatory disease, cyst, tumor. The study was based on a series of 77 patients with maxillary sinus disease and the results were as follows. 1) Of 77 patients with maxillary sinus disease, about 70% had maxillary sinusitis and peak incidence of age was fifth decades and the incidence by sex was more in males than in females. 2) Of 54 maxillary sinusitis patients, about 76% had odontogenic maxillary sinusitis and the 1st molar, 2nd molar, 2nd premolar were most frequently involved. 3) The mucous retention cyst was about 50% of 16 maxillary sinus cyst and the peak incidence of age was 3rd decades.
마비성조음장애,편도대비,비폐쇄 및 구개열 환자의 실험임상 음성학적 연구
김현기,고도홍,신효근,홍기환,서정환 한국음성과학회 1997 음성과학 Vol.2 No.-
The aim of this study is to develop an assessment program of speech rehabilitation for children having some language and speech disorders. Patients of dysarthria, tonsillectomy, tonsilhypertrophy, and nasal obstruction were selected for this experimental clinical phonetic study. Formant variations (F_1 & F_2) show pre- and post-operation differences in tonsillectomy and cleft palate patients. Nasal formants (NF_1 & NF_2) show pre- and post-operation differences in nasal obstruction. The articulation reaction tiem (ART) as a parameter was used to assess Voice Onset Time(VOT). It was shown longer duration for hypokinetic dysarthria and shorter for atoxic dysarthria. The diadochokinetic rate was measured by Visi-pitch. Lower diadochokinetic rate appeared to spastic and dysarthria in comparison with the control group. It was shown that the nasalance of tonsilhypertrophy, nasal obstruction, and cleft palate patients only by simple vowels such as /a/ and /i/. Keywords: speech disorders, dysarthria, tonsilhypertrophy, cleft palate
김현기,김완호,서정환,홍기환,신효근,고도홍 한국음성과학회 1998 음성과학 Vol.3 No.-
Dysarthrias are a sort of neuromotor disorders because of the weakness of neuromotor controls. They are classified in six types on the basis of Mayo clinic research: flaccid, spastic, ataxic, hypokinetic, hypekinetic and mixed types. Five dysarthria types are investigated in this study. MRI, EMG, neuropathological tests are essential diagnostic processing. Visi-Pitch and Spectrgraphy, CSL are used for assessing dysarthria speech. Maximum phonation time, diadochokinetic rate, Voice Onset Time and substitution rate are the speech evaluation parameters. Maximum phonation time and diadochokinetic rates are the lowest in case of spastic and ataxic dysarthria. Spastic dysarthria shows the substituted glottalized consonants. However, flaccid, ataxic and hypokinetic dysarthrias show the substituted aspirated consonants. VOT is the longest for hypokinetic dysarthria and the shortest for ataxic dysarthria. Jitter shows higher percentage in comparison with control group. Speech evaluation using experimental phonetic instruments help create on international standardization of speech evaluation for speech disorders. Keywords: dysarthria, neuromotor, diadochokinetic rate, jitter, shimmer, VOT, formant
고승오,신효근,김현기,홍기환,서정환,고도홍 한국음성과학회 1998 음성과학 Vol.3 No.-
Velopharyngeal function refers to the combined activity of the soft palate and pharynx in closing and opening the velopharyngeal port to the required degree. In normal speech, during the production of oral consonant sounds elevation of the soft palate, along with the superior constrictor muscle, occludes the oropharynx from the nasopharynx. Inadequate velopharyngeal function caused by congenital or acquired insufficiency or incompetency may result in abnormal speech characterized by hypernasality, nasal emission and decreased intelligibility of speech due to weak consonant production. The speech aid is often helpful in improving the speech of individuals with velopharyngeal incompetency. In this article, the pathogenesis and treatment of velopharyngeal incompetence are discussed and a speech aid appliance that was constructed for the patient is described. Keywards : velopharyngeal, hypernasality, speech aid, pathogenesis