顎矯正 手術 後 顎關節 障碍의 發現頻度에 關한 臨床的 硏究

백은호,이국엽,신효근,김정기 全北大學校 齒醫學硏究所 1992 전북치대논문집 Vol.10 No.1

The main purpose of the demanding surgical corrections aimed to improve esthetic appearance and masticatory function. But there are presumable etiologic factors in the development of T M symptoms after orthognathic surgery, that is, potential joint pathology due to different morphology of TMJ, hypombility after surgery, changes in condylar position, and changes in neuromuscular adaptation. These factors can influence on TMJ function. It is very important to find the etiological factors of TMD after surgery. Consequently, this survey was performed to evaluate TMJ function in 65 patients by questionaires, physical examination, radiogram after maxillofacial surgical corrections of the deformity patient. All patients were received pre- and post-operative orthodontic treatment. An acylic splint(wafer) was constructed prior to surgery with occlusal contacts in the anterior and posterior. The study group was consisted of 26 males and 39 females. The patients were evaluated at an average fellow-up period of 17.2 months with a range of 15 to 27 months. The results obtained were as follows: 1. The 65 patients were found to present preoperatively TMJ dysfunction symptom with an incidence of 18.5%(12 cases). 2. The patients with no TMJ dysfunction symptoms preoperatively, presented such symptom with an indicence of 26.4%(14 cases) postoperatively. 3. The main symptoms of TMJ dysfunction were 17 joints(15 clicking), TMJ pain(5 cases). 4. The mean preoperative MIO(maximal interincisal opening) of 49.7㎜ was reduced to 43.9㎜ postoperatively after sagittal split ramus osteotomy(n=38) with wire osteosynthesis(p<0.05).

안와하부 골절의 임상적 연구

백은호,고승오,신효근 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.3

This study was aimed at furnishing the data of infraorbital wall fractures and aiding treatment. This is the retrospective study on infraorbital wall fractures. The patients were treated in the Dept. of Oral & Maxillofacial Surgery of Chon-Buk National University Hospital from Jan. 1, 1996 to Sep. 30, 1999. The result were as follows : Male predominated over female by a ratio of 3.57 : 1. The most common reason was traffic accident(64.1%) . The elapsed time from injury to operation was average 10.4 days. The most frequent site of fractures was Zygomatico-Maxillary complex fracture(61.7%) . The highest department of associated injuries was neurologic Dept. (52.3%). The complication after fractures were the ophthalmologic(20.3%), esthetic(14.8%), facial numbness(4.7%) , etc in this order. The highest ophthalmologic complications was the enophthalmos(7%) .

자동차 공급망 참여기업 대상 사이버보안 관리체계 구현 평가모델 설계(ISO/SAE 21434 표준 및 TISAX 평가 요구사항을 기반으로)

백은호 한국융합보안학회 2022 융합보안 논문지 Vol.22 No.5

자동차 분야의 사이버보안은 자동차 생애주기 중 핵심적인 요소로서 전 세계적으로 사이버보안 평가 기준이 강화되고 있다. 또한 자동차의 설계 및 생산을 수행하는 제조사만이 아니라 복잡한 컴포넌트와 다양한 부품으로 이루어진 자동차의 특성상 전체 공급망에 참여하는 기업들의 사이버보안 관리체계 구현 수준이 평가되고 관리되어야만 사이버보안의 안전성을 확보할 수 있다. 이에 본 연구에서는 자동차 사이버보안을 평가하는 대표적인 기준인 ISO/SAE 21434와 TISAX의 요구사항을 분석하여 총 7개 영역, 54개 사이버보안 관리체계를 평가할 수 있는 항목을 도출하였고 이를 국내/외 기업 보안담당자 및 유관 전문가 대상으로 진행한 설문조사를 통해 우선순위 및 업종에 따른 적합성, 타당성 검토를 거쳐서 6개 영역, 45개 평가 기준을 도출하여 최종 평가항목으로 제시하였다. 본 연구는 자동차 공급망에 참여하는 기업이 ISO/SAE 21434와 TISAX 전반의 통제 프로세스를 일률적으로 도입하기 전에 우선 적용하여 해당 기업의 현재 사이버보안 관리 수준을 평가할 수 있는 모델을 제시했다는 점에서 연구로서의 의의가 있다고 할 수 있다.

임상원저 : 안와하부 골절의 임상적 연구

백은호(Eun Ho Baek),고승오(Seung O Ko),신효근(Hyo Keun Shin) 대한악안면성형재건외과학회 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.2

This study was aimed at furnishing the data of infraorbital wall fractures and aiding treatment. This is the retrospective study on infraorbital wall fractures. The patients were treated in the Dept. of Oral & Maxillofacial Surgery of Chon-Buk National University Hospital from Jan. 1, 1996 to Sep. 30, 1999. The result were as follows: Male predominated over female by a ratio of 3.57:1. The most common reason was traffic accident (64.1%). The elapsed time from injury to operation was average 10.4 days. The most frequent site of fractures was Zygomatico-Maxillary complex fracture (61.7%). The highest department of associated injuries was neurologic Dept. (52.3%). The complication after fractures were the ophthalmologic (20.3%), esthetic (14.8%), facial numbness (4.7%), etc in this order. The highest ophthalmologic complications was the enophthalmos (7%).

골격성 반대교합 환자의 악교정수술 전후 무성 마찰음 /s/, /∫/와 모음의 음향학적 특징 및 비음도의 변화

백은호(EunHo Baik),김승룡(Seung Lyong Kim),신효근(HyoKeun Shin) 대한치과의사협회 1998 대한치과의사협회지 Vol.36 No.9

덕적도(인천)의 관속식물상 조사 연구

백은호 ( Eun Ho Beck ),문애라 ( Ae Ra Moon ),박정미 ( Jeong Mi Park ),장창기 ( Chang Gee Jang ) 한국환경생물학회 2010 환경생물 : 환경생물학회지 Vol.28 No.3

The flora of Deokjeok Island was investigated 35 times from September 2007 to September 2008. Based on voucher specimens, the study indicated that this area consisted of 535 taxa in total; 108 families, 320 genera, 480 species, 2 subspecies, 45 varieties and 8 forms were present. Compositae and Graminae were the first and second most common families surveyed in the region, respectively. Among the more remarkable examples found were four taxa of Korean endemic plants, six taxa of rare and endangered plants designated by National Arboretum, and 55 taxa of specific plants that have been designated by the Ministry of Environment. Furthermore, 50 taxa of naturalized plants were observed and they occupied 17.9% of the total in the surveyed area. Although some parts of the investigated region were disturbed by human impact, the ecological status was comparatively well preserved. However, the area where the remarkable plants were discovered should be more systematically protected. Since the proportion of naturalized plants in the human habitation area was considerably high and the spreading of these plants seems consistent, it is expected that the ecosystem of this area may become critically unstable in near future.

축구선수 경기력 측정을 위한 평가항목의 개발

한필수(Han Pil-Soo),백은호(Baek Eun-Ho),장상영(Jang Sang-Yung) 한국체육과학회 2010 한국체육과학회지 Vol.19 No.2

The main purpose of this study is to develop items which can be written and approved by the meaningful acting result that players conduct in soccer play. At the present, the playing factors which can be recorded by playing contents of soccer player are about 13 items. In the result of analysis, in case of recording by using 13 playing factors, the meaningful playing contents can be recorded about 20%. So actually, about 80% of playing contents the player occurred has the result which is not exact for player appraisal because of the non-existence of item which can be recorded. That is to say, about 80% of meaningful playing contents was not recorded so player's playing ability is not appraised so it's to develop the method recording the player's playing contents concretely. Also, the created player appraisal item make to grasp the objectification and this result can be improved from subjective method to objective method by measuring the player's playing ability. The playing factors for measuring player are 4 fields(attack add, attack cut, defense add, defense cut) and by giving to each developed creating factor and suggesting the adapting principles, we let the result of inserting obtain the reliability. This study can reject the existed method recording the subject quantity mainly for the player's capability and consider to record the spontaneous situation both attack and defense by consisting comparatively the record items so that we can measure the plyer's actual ability. Especially, with just the record the player's playing ability, we generated and suggested the playing factor for our analysis. The playing factor generated newly is contrasting the attack add(26) recorded as positive contributing part when attacking, attack cut(20) recorded as negative failure in same situation, defense add(19) considering the positive results during the defense and defense cut(18) recorded as negative failure in same situation. In addition, by dividing the soccer court by each region, although recording the same factor of playing, we let the result value be appraised in quality.