제 2근심협측근관이 존재하는 상악유구치의 치험례

김창기,홍성수,고승백,이창섭,이상호,Kim, Chang-Gi,Hong, Seong-Soo,Ko, Sung-Back,Lee, Chang-Seop,Lee, Sang-Ho 대한소아치과학회 2002 大韓小兒齒科學會誌 Vol.29 No.2

유치에서는 영구치에 비해 법랑질의 두께가 얇고 약하며 상대적으로 큰 치수강으로 인하여 단시간에 치아우식증이 치수까지 이환되며, 외상 또는 치과치료 중 갑작스런 움직임으로 인하여 치수가 노출되는 경우가 빈번하다. 이러한 이유로 어린이에서의 치수처치는 필수적이며, 유치에서 치수치료의 목적은 감염된 치수조직을 제거하여 동통을 완화시키는 것 이외에도 크게는 치열궁을 보존하여 저작기능을 보호하고, 미래의 영구치열이 적절한 교합관계를 이루게 하는데 있다. 유치열에서 성공적인 치수치료를 위해서는 유치 치수의 형태, 유치 근관의 해부학적 형태, 치근형성, 그리고 유치 치근의 흡수와 관련된 특별한 문제점들에 대한 이해를 필요로 한다. 상악 대구치와 마찬가지로 상악 유구치의 근심 치근이 형태에 있어서 가장 큰 변이를 보인다고 알려져 있으며, 이 치근 내에 존재하는 모든 근관을 처치하지 못한다면 결국 치수치료는 실패할 것이다. 본 증례는 근관치료 중이거나 후에 지속적인 동통이나 근관 내 출혈이 지속되는 경우에서 상악 유구치의 근심협측치근의 제 2근심협측근관을 발견하고 처치한 후 임상증상 및 동통이 사라지고, 양호한 예후를 보였다. 또한 발거된 상악 유구치를 대상으로 한 조사 결과 상악 제 1유구치는 35개 증 8개(22.8%), 상악 제 2유구치는 33개 중 22개(66.6%)의 치아에서 제 2근심협측근관이 발견되었으며. 이는 상악 유구치의 근심협측치근 내에 두 개의 근관이 존재할 가능성이 높다는 것을 의미한다. In a primary teeth, dental caries is rapidly advanced the pulp disease, because the primary teeth have the thinner and the weaker enamel layer and the wider pulp chamber than relatively the permanent teeth. And the pulps of primary teeth are exposed during caries removal or even they are exposed by unexpected movement of the children or by trauma. For successive pulp treatment in primary teeth, it is necessary to understand completely about multiple canal morphology, variation of root canal anatomy and specific problem related to root formation and resorption of primary teeth. In upper primary molar, canal configuration of mesial root has the most variation same as upper molar. If not canal treatment is completely, most of all endodontic treatment should be failed. In a clinical case report, upper primary molars existed persistent pain or bleeding during treatment were founded the second MB canal and were performed the endodontic treatment of theirs. As a result, the upper primary molars have no symptom and good prognosis. In the examination of extracted upper primary molar, we found that 8 of 35 teeth(22.8%) in the upper primary first molars and 22 of 33 teeth(66.6%) in the upper primary second molar had the second mesiobuccal canal. It has revealed the high prevalence of two canals in mesiobuccal roots of upper primary molars. The frequency of occurrence of the second mesiobuccal canal must be taken into consideration when endodontic treatment is planned and as a possible cause of otherwise un explained failure.

TB 클릭닉 - 결핵의 진단 -새로운 결핵진료지침을 중심으로

김창기,Kim, Chang-Gi 대한결핵협회 2011 보건세계 Vol.58 No.4

Pricing the Options in Housing Contracts and Risk Management

김창기,신동훈,김명현,정승영 국토연구원 2015 국토연구 Vol.85 No.-

The recent global financial crisis has hampered economic activities in many ways; however, the impact on the real estate market has been particularly huge. In Korea, falling real estate prices has meant many construction companies going bankrupt because of the vast number of unsold apartments. To alleviate this problem, construction companies have begun to provide potential apartment buyers with free options such as the withdrawal guarantee option, principal guarantee option, premium guarantee option, and buy-back option. In this study, we attempt to analyze the real value and the market risk of these options which has no market value yet. To price the options, we used GARCH option pricing model and Esscher transform. As the result, the price of the withdrawal guarantee option was significantly higher than the other options, and this fact implies that this option may be attractive to the investor in terms of marketing, while the construction firms as issuer may pay the costs. In addition, we applied the DD(Default to Distance) of two companies and VaR of the options in order to manage the risk caused by the options. As the result, according to the analysis of the DD, the issue of the options seems to be helpful to the company immediately. According to the VaR analysis, the principal guarantee option is the most risky option among the options by falling the value of the asset and the value of the option in depressing markets.

Mecillinam의 임상분리 장내세균 대한 시험관내 항균력

김창기,염종화,이상국,이양순,최준용,김준명,정윤섭,이경원 대한감염학회 2009 Infection and Chemotherapy Vol.41 No.3

Background:Mecillinam, an amidinopenicillin antibiotic, has been used to treat urinary tract infections and bacterial enteritis in many countries. In this study, we evaluated in vitro activity of mecillinam against Enterobacteriaceae isolates from urine, and Salmonella and Shigella isolates from patients with bacterial gastroenteritis. Materials and Methods:A total of 308 clinical strains were collected and were comprised of Escherichia coli (n=109), Klebsiella pneumoniae (n=52), Enterobacter spp. (n=30), Serratia marcescens (n=30) and Proteus spp. (n=29) isolated from a university hospital in Korea in 2007, and of Salmonella spp. (n=28) and Shigella spp. (n=30) isolated from Korean diarrheal patients from 2001 to 2006. Antimicrobial susceptibility was tested by Clinical Laboratory Standard Institute (CLSI) agar dilution method. CLSI breakpoint of mecillinam for E. coli urinary tract isolates was applied to all other isolates. Results:In E. coli, rate of susceptibility to ampicillin was 30%, but 99-100% to amikacin and cefotaxime. Most (96%) of E. coli isolates, including extended-spectrum β-lactamase (ESBL) producers, were susceptible to mecillinam. All ESBL producers, except for one isolate, were inhibited by ≤4 µg/mL of mecillinam. MIC90 of mecillinam for K. pneumoniae and Enterobacter spp. was 8 µg/mL and 1 µg/mL, respectively, and the susceptibility rate was 92% and 97%, respectively. However, MIC90 of mecillinam for S. marcescens isolates was >128 µg/mL and most of them were resistant to mecillinam. All Salmonella isolates and 27 of 30 Shigella isolates were susceptible to mecillinam. Conclusion:Mecillinam was active in vitro against most Enterobacteriaceae, Salmonella, and Shigella isolates except for S. marcescens. Therefore, mecillinam can be a good alternative agent for treating urinary tract infection and bacterial gastroenteritis. Background:Mecillinam, an amidinopenicillin antibiotic, has been used to treat urinary tract infections and bacterial enteritis in many countries. In this study, we evaluated in vitro activity of mecillinam against Enterobacteriaceae isolates from urine, and Salmonella and Shigella isolates from patients with bacterial gastroenteritis. Materials and Methods:A total of 308 clinical strains were collected and were comprised of Escherichia coli (n=109), Klebsiella pneumoniae (n=52), Enterobacter spp. (n=30), Serratia marcescens (n=30) and Proteus spp. (n=29) isolated from a university hospital in Korea in 2007, and of Salmonella spp. (n=28) and Shigella spp. (n=30) isolated from Korean diarrheal patients from 2001 to 2006. Antimicrobial susceptibility was tested by Clinical Laboratory Standard Institute (CLSI) agar dilution method. CLSI breakpoint of mecillinam for E. coli urinary tract isolates was applied to all other isolates. Results:In E. coli, rate of susceptibility to ampicillin was 30%, but 99-100% to amikacin and cefotaxime. Most (96%) of E. coli isolates, including extended-spectrum β-lactamase (ESBL) producers, were susceptible to mecillinam. All ESBL producers, except for one isolate, were inhibited by ≤4 µg/mL of mecillinam. MIC90 of mecillinam for K. pneumoniae and Enterobacter spp. was 8 µg/mL and 1 µg/mL, respectively, and the susceptibility rate was 92% and 97%, respectively. However, MIC90 of mecillinam for S. marcescens isolates was >128 µg/mL and most of them were resistant to mecillinam. All Salmonella isolates and 27 of 30 Shigella isolates were susceptible to mecillinam. Conclusion:Mecillinam was active in vitro against most Enterobacteriaceae, Salmonella, and Shigella isolates except for S. marcescens. Therefore, mecillinam can be a good alternative agent for treating urinary tract infection and bacterial gastroenteritis.

氣溫이 韓國在來山羊의 甲狀腺 Ⅰ-131 攝取率에 미치는 影畜

金昌基 忠北大學校 1973 論文集 Vol.7 No.-

期末 修正 分介에 關한 考察 : WITH EMPHASIS ON TYPES 主로 類型을 中心으로

金昌基 同德女子大學校 1976 同大論叢 Vol.6 No.1

We always think all the business transactions accured are recorded accurately but at the end of an accounting period we become to know the fact that there are many things to be adjusted. If these adjustments are ignored partialy or entirely the result of accounting disposition may be brought to naught. That is, when we consider a variety of the types of adjustments required, complexity of adjustment and amount of money involved the importance of the adjusting entries can not be overemphasised in any way. The types of adjusting entries are as follows: Adjusting entries concerning 1. Appropriation of cost of sales 2. Depreciation of tangible fixed assets 3. Bad debts of receivables 4. Periodic allotment of prepaid expenses 5. Periodic allotment of deferred income 6. Perceived appropriation of accrued income 7. Perceived appropriation of accured expenses 8. Appropriation of depreciation of inventories based on inventory checks 9. Appropriation of gains & loss from revaluation of inventories 10. Appropriation of gains & loss from revaluation of securities 11. Amortization of intangible fixed assets 12. Amortization of deferred accounts 13. Appropriation of gains & loss from revaluation of foreign currency assets 14. Appropriation of gaints and loss from revaluation of foreign currency liabilities 15. Other adjustments required. As mentioned above appropriate adjustments will make it possible to abtain accurate accounting information. For this purpose special emphasis is placed on the following three points. 1. Encouragement of effective utilization of accounting information at level of management 2. Recognition of importance of adjustment at level of working staff 3. Promotion of awareness on importance of accounting information at level of those who are involved in the business.

지역복지증진을 위한 사회복지협의회와 지역사회보장협의체 상생협력방안 토론문

김창기 한국지역사회복지학회 2021 한국지역사회복지학회 학술대회 Vol.2021 No.11

韓國在來山羊 膵臟의 란겔한스島嶼에 관한 연구

김창기 忠北大學校 1975 論文集 Vol.9 No.-

美湖川酪農團地 乳牛 乳房炎의 감염률 및 치료에 관한 연구

김창기 忠北大學校 1972 論文集 Vol.6 No.-

동부 Ont 州內의 乳牛에 대한 Trypanosoma Americanum 의 분포에 관한 연구 ( 제1보 )

김창기 忠北大學校 1969 論文集 Vol.3 No.-