법랑아세포종 제거후의 Implant보철수복 증례

안상헌,김종필,조병완,안재진,Ahn, Sang-Hun,Kim, Jong-Pil,Jo, Byung-Woan,Ahn, Jye-Jynn 대한치과보철학회 1997 대한치과보철학회지 Vol.35 No.1

Ameloblastoma is the most agrressive ofht odontogenic tumors and it arises from the dental lamina or the derivatives of lamina. Ameloblastoma is a benign but locally invasive neoplasm consisting of proliferating odontogenic epithelium lying in a fibrous stroma. Usually the ameloblastomas are diagnosed in the forth and fifth decardes. Over 80% of them occur in the mandible, the remainder in the maxilla. The preferred treatment for ameloblastoma is radical excision, conserving(when possible. the inferior border of the mandible. The functional and esthetic rehabilitation of the partially edentulous patient may prevent the remaining structures from supporting conventional prosthetic treatment. Patients with long edentulous spans, malpositioned teeth, residual ridges defects and high muscle attachments may be offered an osseointegrated fixed prosthesis. Osseointegrated dental implants provide a viable alternative of tooth replacement. This is a case report of 16 year old female with ameloblastoma. We treated patient with radical excision, conserving the inferior border of the mandible and allogenous bone graft. The defected residual ridge area was reconstructed implants(Steri-Oss Implant System). the result was satisfactory.

측두간극감염과 외측인두간극감염

안상헌(Sang Hun Ahn),박재범(Jae Bum Park),김종필(Jong Pil Kim),안재진(Jye Jynn Ahn) 대한구강악안면외과학회 1996 대한구강악안면외과학회지 Vol.22 No.3

The oral surgeon deals with odontogenic and other head and neck infections. The surgeon must accurately assess the severity of the infection, establish the patient s general condition, and institute immediate therapy, if the patient is seriously ill. Involvement of the deep and superficial temporal spaces can be secondary to infections of the infratemporal and masseteric spaces. Patients complain of trismus, pain, and headaches. Swelling may be minimal, fluctuance is usually not appreciated, and spontaneous external drainage rarely occurs. The patient was a 39-year-old female, with the chief complaint of continuous dull pain on the right temporal region and extreme mouth opening difficulty for 5 days, who was diagnosed as right temporal and masticator space infections. There was n evidence of odontogenic origin. Possible etiologic factor of the infection was assumed to be the upper respiratory tract infection. Lateral pharyngeal space infection develops, if infection or pus drains from the tonsils or a peritonsillar abscess. Also it becomes involved in the spread of odontogenic infection. Patients have trismus, swelling, fever, pharyngeal bulging and dysphasia. The patient was a 31-year-old female, who had a history of surgical extraction on # 48. Thereafter a peritonsillar abscess developed 2 months after the extraction. She was treated through intraoral I & D, but she was hospitalized again due to recurred peritonsillar abscess and newly developed lateral pharyngeal space infection. We treated each of two patients using extraoral and intraoral I & D. The results was satisfactory.

자율화ㆍ다양화 시대, 평생교육사의 정체성

안상헌(Ahn Sang Hun) 한국평생교육학회 2008 평생교육학연구 Vol.14 No.3

  이 연구의 목적은 관리와 통제ㆍ획일화가 우리 교육을 주도하고 있었던 시대에 평생교육사의 정체성에 대한 논의 방식을 비판하고, 자율화와 다양화 시대에 적합한 평생교육사의 정체성을 탐구하는 것이다.<BR>  관리와 통제ㆍ획일화 시대에 평생교육사의 정체성 논의는 제도적 차원의 법적 지위 강화, 양성-배치-연수의 효율성 강화, 평생교육사의 개인 자질 향상을 통한 전문성 향상에 초점이 맞춰져 있었다. 하지만 자율화ㆍ다양화 시대에 적합한 평생교육사의 정체성은 ‘평생학습사회의 속성에 정합되는 전문성을 바탕으로 하고, 평생직업인이라는 새로운 개념에 의해서 활동하는, ‘문화적 일꾼’이 되어야 할 것이다.<BR>  나아가 이러한 논의의 확산을 위하여 두 가지 제안을 했다. 하나는 정책적 차원에서 평생학습 사회에 정합되는 ‘문화적 일꾼’을 발굴하고 지원하는 행정으로의 전환이고, 다른 하나는 학술적 차원에서 이들에 대한 문화기술적 연구를 통해 이들의 삶의 태도, 교육목적, 내용, 방법을 발견하 고 확산할 것을 제안한다.   This study aims to criticize the identity of lifelong educators in the age of regulation and standardization, and to explore the identity of lifelong educators in the age of autonomy and diversity.<BR>  The results of this study are as follows. First, In the age of regulation and standardization, questioning on the identity of lifelong educators focused on improving legal status, strengthening the efficiency of "training - arrangement -re-training for lifelong educators, and improving their individual qualities. Second, In the age of autonomy and diversity, questioning on the identity of lifelong educators should focus on re-conceptualizing lifelong educator"s professionalism appropriate to Lifelong Learning Society, discovering new ideas of lifelong profession, and finding the inner motive to drive cultural workers with.<BR>  In conclusion, this study suggests two things. First, lifelong education authorities have to scout and support the cultural workers. Second, the society for the study of lifelong education have to find out and practice not only the way of life of the cultural workers but also their aims, contents, and methods of education. That could be done through the ethnography on them.

한국 학교교육의 낭비 구조 : 분석틀의 마련을 중심으로

안상헌 ( Sang Hun An ) 경북대학교 중등교육연구소 2007 중등교육연구 Vol.55 No.3

한국 평생학습사회의 이념적 지향성 탐색

안상헌(An Sang-Hun) 한국평생교육학회 2005 평생교육학연구 Vol.11 No.1

이 연구의 목적은 근대 학교중심 교육체제의 한계를 극복할 대안으로 논의되고 있는 평생학습 사회의 이념적 지향성을 탐색하기 위한 것이다. 이를 위해 이 연구에서는 평생학습사회의 이념적 지향성과 관련된 논의를 그 기원과 쟁점별로 검토하고, 이를 바탕으로 21세기 한국 사회에서 새로운 교육체제의 이념적 지표가 된 평생학습사회가 추구해야할 지향성은 무엇이어야 하는지를 탐색했다. 이상의 논의를 통해 이 연구에서는 한국 평생학습사회가 근대 학교중심 교육체제의 한계를 극복할 대안으로 자리잡기 위해 다음과 같은 이념적 원칙을 언제나 견지해야한다고 제안했다. 첫째, 한국 평생학습사회는 '교육의 본철 회복'을 통한 '좀더 완전한 인간'의 형성을 그 이념적 지향점으로 삼아야 한다. 둘째, 한국 평생학습사회는 근대 학교중심 교육체제의 부분적인 보완이 아닌 그 한계를 발전적으로 극복한 '새로운 교육제도'의 구축을 목적으로 삼아야 한다. 셋째, 한국 평생학습사회는 근대사회가 미완의 과제로 남기고 있는 진정한 '능력주의 사회'의 완성을 위한 '교육적 지원 체제'로 자리잡아야 한다. The purpose of this study is to explore the. ideological directiveness of the Korean lifelong learning society. To achieve this purpose, this study is focused on two aspects. At first, this study reviewed the origins and issues on dispute of the theory of lifelong learning society. Next, this study explored the directiveness which can be an ideological guiding post of the new system of education in 21st century Korean society and should be pursued by lifelong learning society. In the discussion on the ideological origins of lifelong learning society were mainly discussed the theory of liberal learning society, of market-centered learning society, of deschooling learning society, and to discuss omitted part in these three categories additional discussion on the theory of lifelong education was added. As the main disputed issues of lifelong learning society were discussed on the three disputed issues; constructing learning society vs. constructing learning economy, forming the complete man vs. forming the man with lifelong employability, and expanding the publicness of education vs. stressing marketableness of education. The conclusions of this study are as follows. First, the ideological directiveness of Korean lifelong learning society should aim at forming more complete man through the recovering the nature of education. Second, Korean lifelong learning society be settled down as the new system of education that has progressively overcome the limit of modern school-centered system of education. Third, Korean lifelong learning society should be the educational support system for the completion of meritocracy.

교합평면이 악구강계에 미치는 영향에 대한 임상적 연구 I. Panoramic View를 이용한 교합평면의 검토

조병완,안상헌,김종필,Jo, Byung-Woan,Ahn, Sang-Hun,Kim, Jong-Pil 대한치과보철학회 1995 대한치과보철학회지 Vol.33 No.4

In clinical prosthetic dentistry the occlusal planes were represented to the dental arch form sagittally and composed of the occlusion morphologically. From now on the determinations of the occlusal planes were done through the facebow transfer and the cephalometric radiography, but they were not exact method for the diagnosis of the stomagnathic function. The purpose of this study is to examine the sagittal characteristics of occlusal planes using panoramic view between the normal subjects and the subjects with stomatognathic dysfunction. 60 normal subjects and 16 subjects with stomatognathic dysfunction were slectec for this investigation. We measured the inclination of occlusal planes to Frankfurt Horizontal plane. The occlusal planes were divided into 4 groups : 1) The plane between the midpoint of upper central incisor and the mesiobuccal cusp of upper 1st molar, 2) The plane between the midpoint of upper central incisor and the mesiobuccal cusp of upper 2nd molar, 3) The plane between the midpoint of upper central incisor and the distobuccal cusp of upper 2nd molar, 4) The plane between the mesiobuccal cusp of 1st molar and the distobuccal cusp of 2nd molar. The results were as follows : 1) The occlusal planes could be determined very easy by using panoramic view, 2) Among the angles between the occlusal planes and the FH plane, the angles related with the 2nd molar were more steep than those of the 1st molar. The angle between the 1st molar and the 2nd molar is the most steep in the other angles. 3) In the angles between occlusal planes and FH plane, the subjects with stomatognathic dysfunction were more significant steep(p<0.05) than the normal subjects.

포도당배지에서 DNA chip을 이용한 자일리톨 감성균주와 내성균주의 유전자 발현 비교

임상욱 ( Sang Uk Im ),안상헌 ( Sang Hun Ahn ),박동옥 ( Dong Ok Park ),최연희 ( Youn Hee Choi ),송근배 ( Keun Bae Song ) 대한구강보건학회 2012 大韓口腔保健學會誌 Vol.36 No.4

Objectives: Streptococcus mutans (S. mutans) is the major causative bacteria in dental caries. Xylitol is an effective anticarious natural sugar substitute by inhibiting the virulence of S. mutans. However, longterm xylitol consumption leads to the emergence of the xylitol-resistant S. mutans (XR). The aim of this study is to analyze the difference of gene expression profile of xylitol-sensitive S. mutans (XS) and XR in 0.5% glucose containing TYE media, using a DNA chip. Methods: S. mutans KCTC3065 was maintained in 0.5% glucose and 1% xylitol containing TYE media, during 30 days at 37oC 10% CO2 to form XR. The same procedures without xylitol were repeated for the formation of XS. Both XS and XR were cultured in 0.5% glucose with or without 1% xylitol containing TYE media overnight and total RNA was extracted. RNA from XS was labeled with Cy-3 dye as control, and XR were labeled with Cy-5 as references. DNA chip was hybridized for 18-20 h at 42oC. Results: A total of 277 genes of DNA chip data were significantly increased or decreased in XR. There is a total of 174 XR up-regulated genes in 0.5% glucose and 1% xylitol containing TYE media, and a total of 103 down-regulated genes. For compare with results of DNA chip, 11 in up-regulated genes and 10 in down-regulated were verified by RT-PCR. The most abundant increased genes in XR were related to cell envelope, cellular processes, DNA metabolism, transcription, and protein folding and stabilization. The decreased genes in XR were related to amino acid biosynthesis, toxin production and resistance, energy metabolism, ribosomal proteins synthesis, and signal transduction. Conclusions: These results indicate that the difference of gene expression profile of XS and XR may be in existence. In particular, results of this study for XR up-regulated genes have a lot of similarities with the already published xylitol-related researches and other functional studies.

자일리톨 처리 농도에 따른 자일리톨 감성균주와 내성균주의 독력 비교

임상욱 ( Sang Uk Im ),안상헌 ( Sang Hun Ahn ),송근배 ( Keun Bae Song ) 한국치위생과학회 2011 치위생과학회지 Vol.11 No.5

Streptococcus mutans (S. mutans) is the major causative bacteria in dental caries. Xylitol is effective anticarious natural sugar substitute by inhibiting the virulence of S. mutans. However, long-term xylitol consumption leads to the emergence of the xylitol-resistant (XR) strains which means xylitol is no more inhibited their growth. We therefore confirmed the general characteristics and the virulence factors of the xylitol-sensitive (XS) and XR S. mutans for different concentrations of xylitol. S. mutans KCTC 3065 was maintained in TYE medium containing 0.4% glucose with 1% xylitol during 30 days at 37oC, 10% CO2 to form XR strain. The strains were transferred to new medium every 24 hr and the same procedures without xylitol were repeated for the formation of XS S. mutans. Both XS and XR were cultured in different concentrations of xylitol (0%, 0.1% and 1%) then, cell growth, acid production and mRNA expression of gtf genes were analyzed. Xylitol reduced the cell growth of XS S. mutans in dose-dependent manner, but not reduced that of XR. Xylitol inhibited acid production of XS in dose-dependent manner, but not inhibited that of XR. Xylitol reduced the gtfB and gtfD mRNA expression of XS S. mutans which genes synthesized soluble and insoluble extracellular polysaccharides, but not reduced that of XR. These results indicate that the virulence of XR S. mutans is different characters of XS strains, which suggests XR strains may have different cariogenicity of XS strains. Further study is needed to explain the mechanism related to extracellular polysaccharide in the XR strains.

불량한 치조제에서의 임플랜트 시술증례

박재범,안상헌,정수일,조병완,안재진,Park, Jae-Bum,Ahn, Sang-Hun,Cheung, Soo-Il,Jo, Byung-Woan,Ahn, Jae-Jin 대한악안면성형재건외과학회 1997 Maxillofacial Plastic Reconstructive Surgery Vol.19 No.1

The most critical factor in determining which type of implant to be used would be the available bone of the patient. Usually a minimum of 5mm in the bone width and 8mm in the bone height is necessary to ensure primary implant stability and maintain the integrity of bone contact surface. Placement of implant is limited by the several anatomic strutures such as maxillary sinus, floor of the nose, inferior alveolar neurovascular bundle and nasopalatine foramen, etc. When severe resorption of alveolar ridge is encountered, implant placement would be a problematic procedure. A number of techniques to improve the poor anatomic situations have been proposed. This article reports 4 cases of patients using surgical procedures such as blade implant technique, cortical split technique in the anterior maxillary area, sinus lifting and lateral repositioning of inferior alveolar nerve, We treated dental implant candidates with unfavorable alveolar ridge utilizing various surgical techniques, resulted in successful rehabilitation of edentulous ridge.

Prosthetic rehabilitation of the edentulous patients using O-ring attachment:A clinical report

안재진,조병완,안상헌,김종필,Ahn, Jae-Jin,Jo, Byung-Woan,Ahn, Sang-Hun,Kim, Jong-Pil The Korean Academy of Prosthodonitics 1998 대한치과보철학회지 Vol.36 No.4

무치악환자의 Implant보철수복 방법은 식립된 Implan의 수에 따라 다양하다. 많은 수의 Implant가 식립된 경우에는 고정성 보철물로 수복이 가능하지만 시술이나 기공상의 복잡성, 고가의 치료비, 보철물과 잔존치조제사이의 빈 공간으로 인한 비심미성, 발음의 어려움과 같은 여러 가지 문제점이 존재한다. 적은 수의 Implant가 식립된 경우는 Bar Retained Overdenture를 사용하지만 역시 기공과정이 복잡하며, Bar와 잔존치조제사이의 공간으로 인한 점막지지 면적의 감소와 보수가 어려운 단점이 있다. 여기에 비해서 O-ring Attachment를 이용하면 기공과정이 쉽고, 잔존치조제와 보철물 사이에 공간이 없으므로 점막지지 면적을 많이 얻을 수 있다. 또한 Implant식립의 수도 최소화할 수 있어 경제적이며, 문제가 발생한 경우에 쉽게 대처할 수 있는 장점을 지니고 있다. 본 증례들은 Steri-Oss Implant System의 O-ring Attachment를 이용하여 무치악환자를 보철 수복한 예로서 술후 기능적, 심미적으로 만족할 만한 결과를 얻었기에 문헌고찰과 더불어 발표하는 바이다. A successful prosthesis is difficult to produce without using the implants in the severely resorbed alveolar ridges and maxillofacial defects. This report describes clinical experience of the overdenture using O-ring attachment. Clinical results have revealed successful application for the O-ring attachment in the two edentulous patients and a partial maxillectomy patient.