구개열 아동 언어의 진단 평가

신효근,고승오,홍기환,서정환,고도흥,김현기 大韓顎顔面成形再建外科學會 1998 Maxillofacial Plastic Reconstructive Surgery Vol.20 No.1

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.

矢狀分割骨切斷術에 依한 顎矯正術의 統計學的 硏究

辛曉根,陳宇政,李俊禮,金晤煥,李炫尙 大韓顎顔面成形再建外科學會 1997 Maxillofacial Plastic Reconstructive Surgery Vol.19 No.2

Recently, combined with social complexity, increment of medical demand and supply and the change of esthetic category, admission and operation of the patients of facial deformity have been changed with annual change. This study was conducted in the concept of helping the overall character of orthognathic surgery in future understood and being an important index in the establishment of better treatment course, through the patient, on whom was operated orthognathic surgery via sagittal split ramal osteotomy in our Dept. of Oral & Maxillofacial Surgery, Chonbuk National University Hospital from 1991. 1. 1 to 1995. 12. 31. The results were obtained as follows. 1. The ratio of male to female was 1 : 1.33 and the ages between 16 and 25 year was 73.6%, and the mean age was 20.4 years. 2. The ratio of setback amount between 6 to 15mm was 84.6% and the advancement amount between 1 to 10mm was 89% and the mean amount of movement was 9.0mm in setback, and 3.6mm in advancement. 3. After removal of maxillomandibular fixation(MMF), the distinction of sex was not statistically significant in ROM. 4. The ROM following methods of fixation was statistically significant in 3rd(P<0.05), 8th, and 12th week(each P<0.01), with faster rehabilitation in rigid fixation which had shorter MMF period. 5. The rehabilitation of ROM following the operation methods was statistically significant in 1st(P<0.05), 2nd, 3rd, 4th, 6th, 8th, and 12th week(each P<0.01) with faster rehabilitation in the case of SSRO than Lefort I / SSRO (Two jaw surgery). 6. The rehabilitation of ROM following directions of mandibular movement did not manifest a statistically significant difference in both setback and advancement.

顎顔面骨 骨折에 關한 臨床的硏究

申曉根 全北大學校 齒醫學硏究所 1983 전북치대논문집 Vol.1 No.1

The author analyzed clinically fractures of maxillo-facial bones, locations, age distribution, etiologic distributions, types of fractures, operation methods. The data for this study was complied from 96 patients of maxillo-facial surgery, college of dentistry, J.N.U. Hospital. The results were as follows, 1. The most frequent fractured site was mandible (88.4%), maxilla(7.2%), zygoma(4.4%) 2. The left symphysis region was the most frequent part 27.1%, left & right side were in the ratio of 72:50 3. Frequency of the fracture was the highest age group of the second decade group, 37.5%, Males to Females 86:10 4. The two major etiologic factors were traffic accidents 50%, blow accidents 30.2%, Pathologic fracture due to chronic osteomyelitis was 1 case. 5. Operation method was closed reduction 31 cases, open reduction 65 cases(included 7 cases used E.C.T. system)

上鄂骨 複合骨折의 CSP(Compression Screw Plate)를 使用한 治驗例

辛曉根 全北大學校 齒醫學硏究所 1984 전북치대논문집 Vol.2 No.1

The author in Dept of Oral & Maxillo-famal surgery, J.N.U Hospital could have the following result after treatment of maxillary complicated fractured patient with Compression Screw Plate. 1. Accurate reduction of maxillary fractured bone. 2. No.Post-op. intermaxillary wiring was necessary.

MTT법을 이용한 사람 골육종과 상피암 세포주들에 대한 항암제 감수성 검사

박승오,신효근,김오환,지은정 全北大學校 齒醫學硏究所 1991 전북치대논문집 Vol.9 No.1

Three anticancer agents which are different in time or dosage dependence, as well as in phase specificity namely mitomycin and adriamycin from natural products and widely used synthetic drug 5 FU, were evaluated for their chemosensivitivy on the five different cancer cell lines ; Four epidermoid carcinomas originated from larynx, cervix, skin and gut were used together with one osteosarcoma as the target cells of single and combined administration of anticancer drugs. Semiautomated tetrazolium dye assay(MTT) appears to offer an attractive option for chemosensitivity of the head and neck cancers since it is a simple, valid and inexpensive method of assessing chemosensityvity for large sample in a short time. The results obtained from this study were as follows. l. Good correlations were obtained with the results of the MTT test and those of ^3H thymidine uptake assay. 2. LD_50 values of HIST and St.Ca, which showed relatively high doubling time on adriamycin were 30㎍/㎖ and 15 ㎍/㎖ while those of HeLa, HEp-2 and KHOS/NP were 2.1㎍/㎖, 4.8㎍/㎖, and 6.8㎍/㎖ respectively. 3. The LD_50 value of 5-FU five cancer cells on were very high ranging from 15㎍/㎖ to almost indefinite number, which means 5 FU is very resisitant to epidermotd carcinomas or osteosarcoma examined in this study. 4. Mitomycin was relatively effective showing 80% cancer cell killing effect on HeLa, 70% on St.Ca, and 50% on HEp-2 at the high concentrations used. 5. Adriamycin was the most effective showing 90% cancer cell killing effect on KHOS/NP, 98% on Hela, 80% on HEp-2, and St. Ca. The least susceptible cancer cells towa adriamycin was HIST having only 55% cell killing effect at the high concentration. 6. Combined therapy of adriamycin and 5-FU was more effective than single administration in all the cases, examined. Most effective synergism was observed on St. Ca. At the low concentration, showing 21 times higher than each single administration.

ECT (European Compression Technic) System 을 사용한 下顎骨 骨折의 治驗例

金晤煥,申曉根,宋采炫,崔秉河,權泰鎬 全北大學校 齒醫學硏究所 1983 전북치대논문집 Vol.1 No.1

The authors in the Dept. of Oral & Maxillo-facial Surgery.J.N.U Hospital could have the following results after treatment of eight mandibular fractures patients with the E.C.T.(European Compression Technic)System. 1. Accurate reduction of the fractured bone. 2. Minimization of the soft tissue injury during operations. 3. No post-operative intermaxillary fixation was necessary. 4. Good recovery of the occlusion.

口蓋裂 患者에 있어서 口蓋 成形術後 鼻咽腔 閉鎖에 關한 臨床的 硏究

고광희,신효근 全北大學校 齒醫學硏究所 1991 전북치대논문집 Vol.9 No.1

In order to find the causes of velopharyngeal incompetency after primary palatorrhaphy in cleft palate patients, we analyzed the form and function of the velopharyngeal space of fifteen operated cleft palate patients and five normal subjects. The velopharyngeal function was evaluated by lateral cephalometric radiography, velopharyngography and hypernasality cul-de-sac test. The obtained results were as follows 1. The rate of velopharyngeal incompetency was twenty percent, three of the fifteen operated patients. Two of them were complete cleft palate and the other was incomplete one. 2. The length of soft palate and levator eminence were longer in normal group than those of good speech group and complete cleft palate group during phonation of /i/ (P<0.05). The lengthening rate of soft palate was smaller in good and poor speech group than that of normal group(P<0.05) and, reduced in order, normal group, complete cleft palate group and incomplete palate group(P<0.05). 3. The nasopharyngeal distance had no significant difference between all groups at rest, but, smaller in normal group than that of both cleft palate group(P<0.05), good speech group and poor speech group(P<0.05) during phonation of /i/. The difference in nasopharyngeal distance between rest and /i/ phonation was greater in normal group than that of both cleft palate group, good speech group and poor speech group. 4. The moving distance of soft palate reduced in order, normal group, incomplete cleft group, complete cleft palate group(P<0.05). 5. The distance between lateral pharyngeal wall had no significant difference between all groups in rest, but, smaller than that of complete cleft palate group in normal group(P<0.01) and increased in order normal group, good speech group, poor speech group(P<0.01) during phonation of /a/. The mobility of lateral pharyngeal wall was reduced in order, normal group, good speech group, poor speech group(P<0.01). 6. There was low corelationship between the mobility of lateral pharyngeal wall and soft palate. Therefore, it suggest that the movements of lateral pharyngeal wall and soft palate occurs independently.

상악골 결손 환자의 보철물 장착전후 음성변화에 관한 임상적 연구

송광엽,신효근,신금백 全北大學校 齒醫學硏究所 1993 전북치대논문집 Vol.11 No.1

The degree of hypernasality has been assessed by the listener's judgements, but perceptual assessments have poor scientific reliabilities. So the objective instruments with diagnostic accuracy have been needed to test hypernasality. This study analyzed the nasalance score using Nasometer after prosthetic treatments in three patients with hemimaxillectomy. The simple vowels, /a/ and /i/, were tested for the degree of hypernasality before and after prosthetic treatments. Also we used high-speed analysis system using PC with DSP for assessment of resonance. The testing words were consisted of simple vowels, /a/ and /t/. The obtained results were as follows. 1. Nasalance of the patients with prosthetic treatments were decreased about 25∼93%. 2. The first Formants of the patients with prosthetic treatments were decreased, and these results showed the forward movements of tongue. 3. The voice onset time has decreased by 56.57ms in comparison with preprosthetic state, and these results meant articulation reactions after prosthetic treatments were better than those of preprosthetic state.

프랑스어 및 한국어 구강모음의 비교연구 : 컴퓨터 단층 촬영 및 디지틀 음향분광기를 사용하여 by means of Computed Tomography and High-speech Analysis System

김찬양,신효근,홍기환,김연희,김현기 全北大學校 語學硏究所 1994 어학 Vol.21 No.-

The methods of the Computed Tomograph and the High-speed Speech analysis system were used for the comparative study of French and Korean oral vowels. Three male native speackers of French and three Korean speakers were selected for these articulatory and acoustic characteristics. The speech materials were the simple French oral vowels / i, e, ε, a, u, o, ??, a / and the Korean oral vovels / i, e, ε, a, w, u, o /, respectively. The results of these studies are as follows : (1) In the case of articulation, the aperture of Korean closed front unrounded vowels is larger than that of French vowels and the Korean back closed vowel /u/ and the half-closed vowel /o/ did not show significant differences with the corresponding French high vowel /i/. But the aperture of the Korean half-open vowel /??/ is smaller than that of French vowel and in this case, the place of articulation for Korean vowel /??/ is more advanced than that of French vowel /??/ (2) By means of spectrographic analysis of the French and Korean vowels, the first formant of the Korean high vowel /i/ is higher than that of French high vowel /i/. This means that the aperture of the Korean high vowel is larger than that of French high vowel. The second formant of French back vowels are lower than those of Korean back vowels. This result shows that the projection of French back vowels is greater than that of Korean back vowels.