Cariogram을 이용한 모자간 우식활성도의 상관성 및 우식위험요소 평가

이석우,송제선,최병재,최형준,이제호 大韓小兒齒科學會 2009 大韓小兒齒科學會誌 Vol.36 No.3

영유아기 치아우식증은 복잡하고 다인자적 질환으로 숙주 및 미생물, 식이, 시간 등의 위험요소에 의해 질환이 진행된다. 이 중 미생물로 대변되는 Streptococcus mutans(S. mutans)는 우식 개시에 있어 중요한 역할을 하며, 어머니를 통한 수직 감염이 잘 알려져 있다. 영유아기의 어머니를 통한 조기 감염은 향후 유치열기 우식 발생과 높은 연관성을 나타내므로 우식위험요소에 대한 조기 파악은 미래의 치아우식증 예방에 있어 매우 중요하다. 최근 치아우식증의 원인 및 이에 미치는 요소들에 대한 연구가 활발하게 이루어지면서 우식 진행에 대한 정확한 예측을 위한 여러 가지 우식위험도평가(caries risk assessment) 도구가 개발되었는데, 이 중 대표적인 한 가지가 Cariogram이다. Cariogram은 개인의 우식활성도 및 우식위험요소(caries risk factor)의 상호작용을 그래프로 나타낸다. 이번 연구의 목적은 3~5세의 중증 유아기우식증(Severe Early Childhood Caries; S-ECC)에 해당되는 어린이들과 그들의 어머니 사이에서 우식관련타액검사 및 최근 개발된 Cariogram을 이용하여 S. mutans의 수준 및 우식활성도에 대한 상관관계가 존재함과 우식위험요소 간의 연관성을 파악해 보았는데, 이를 통해 다음과 같은 결론을 얻을 수 있었다. 1. 중증 유아기우식증을 보이는 어린이에서 구강 내 존재하는 Streptococcus mutans의 수준은 비우식군보다 높았다(p<0.05). 2. 모자간 구강 내 존재하는 Streptococcus mutans 수준은 상관관계를 보였다(p<0.05). 3. 모자간 우식활성도를 Cariogram을 통해 측정해 본 결과 상관관계를 보였다(p<0.05). 4. 우식활성도에 미치는 우식위험요소는 어린이에서 숙주요소가 가장 큰 영향을 주는 것으로 나타났다. 이상의 결과로 S. mutans가 향후 치아우식증 발생 가능성을 예측하는데 있어 유용한 우식위험요소가 될 수 있으며, Cariogram을 통한 향후의 우식진행과 관련된 여러 가지 우식위험요소가 예측 가능하므로 이에 대한 조기 대처 및 예방적 처치가 가능하리라 사료된다. Dental caries during infantile and early childhood period is a complex disease resulting from multiple caries factors. Streptococcus mutans(S. mutans) plays a critical role in the initiation of caries, and its early transmission through mothers provides a strong etiologic factor for future development of caries in the primary dentition. Therefore, early detection of caries risk factor is important for prevention of caries. Recent studies about etiologic factors of caries have brought advent of various tools for caries risk assessment in order to predict progress of caries more accurately. Cariogram is a common tool for caries risk assessment, which illustrates present caries risk assessment and correlation of caries risk factors for an individual graphically. The aim of this study was to assess if there is any correlation in the level of S. mutans and caries activity and to verify the effect of caries risk factors between children with age ranging from 3 to 5 years with severe early childhood caries(S-ECC) and their mothers using caries-related salivary test and Cariogram. The results of this study were as follows. 1. Children with S-ECC had a statistically higher level of Streptococcus mutans compared to caries-free children(p<0.05). 2. There was significant correlation between mothers and their children in the aspect of the level of Streptococcus mutans(p<0.05). 3. When caries activity was assessed using Cariogram, significant correlation between mothers and their children was found(p<0.05). 4. When each caries risk factor was evaluated for its affect on caries activity, host was more influential factor compared to microorganism and diet in children. Based on these results, we could conclude that assessing the level of S. mutans can be an effective tool for predicting possibility of caries formation in future. Since prediction of future caries progression and evaluation of caries risk factor became possible with Cariogram, we may conduct early and preventive measures for treatment of caries.

海難事故에 對하여(Ⅰ) : 漁船의 沈沒事故를 中心으로

裵錫悌 군산대학교 1975 群山水産專門大學 硏究報告 Vol.9 No.3

Based on the judgement of the maritime accident in inquiry court, Analysing the submersion of fishing boats, the results are as follows. 1.Most submersion of fishing boats are taken place not on the act of God, but carelessness of seamen's poor operation. 2.The submersion of fishing boats are happened on the account of the loss of stability on the condion of top heavy, to neglect the meteorlogical condition. 3.The submersion of fishing boats are happened on poor lookout and to negleglect the check of ship position, 4.The submersion of fishing boats aretoken place on the bad maintenance of engine and handle without care: 5.The submersion of fishing boats much are happened at 22h-06h in time, Jan- April in month. 6.Concerning to the submersion of fishing boats, increasing the wind force, (Beaufort scale 7 over)The accident are much happened.

綿織物의 染色堅牢度에 關한 比較 硏究

鄭濟石 慶北工業專門大學 1979 論文集 Vol.16 No.-

In this paper, Dip dyeing of cotton fabric made direct dye, reactive dye, basic dye and vat dye. A Comparison testing carried on the colour fastness when colourfastness to light, colourfastness to laundering, colourfastenss to perspiration and colourfastness to rubbing. The results are as follows, 1) The best results are dyeing of vat dye when testing for colourfastness to light and acid solution, alkali solution of colourfastness to perspiration. 2) The best results is dyeing of reactive dye when dry and wet testing for colourfastness to rubbing. 3) An able order of colourfastness is dyeing of vat dye, reactive dye, direct dye, and basic dye.

흰쥐 구치 기근의 발육부위별에 따른 제 1형, 제 3형 교원질 및 Fibronectin의 분포변화에 관한 연구

주성숙,신제원 慶熙大學校 齒科大學 1994 慶熙齒大論文集 Vol.16 No.1

간질발작을 주 증상으로 하는 회백질 이소증을 동반한 Schizencephaly 1례

신석호,양일권,김제헌 大韓神經精神醫學會 1991 신경정신의학 Vol.30 No.4

We experienced a case of schizencephaly with heterotopic gray matter that was only manifested a seizure attack. The clinical manifestation of this patient was only seizure without mental retardation, which was controlled by anticonvulsants. The term schizencephaly was introduced by Yakovlev and Wadsworth in 1946 to describe bilatral, nearly symmetrical and full-thickness clefts, which were characterized by an infolding of cortical gray matter along the clefts. The most widely accepted theory for the pathogenesis of this anomaly is the failure of formation of a segment of the germinal matrix or segmental failure of neuronal migration. Heterotopic gray matter is frequently found within and near the cleft. Patients who have these condition present clinically with seizures and developmental delay, and abnormal motor skills are noted in the more severly affected cases. Recognition is important for planning proper treatment and for genetic counseling.

현행 고등학교 화학 교과서 비교 연구

오제직,최석남,이종길 공주대학교 사범대학 과학교육연구소 1994 과학교육연구 Vol.25 No.1

This paper aims to help the teachers select the textbook and provide them with the basic teaching materials as an ideal model by analyzing the organization (its element and appropriateness), volume amount, experiment matter, and the contents of the highschool chemistry textbooks, which have been revised in accordance with the 5th amended curriculum. The results of the analogy are as follow 1. Organization (its element and appropriateness) : Though having some distincitive characteristics, all the textbooks have almost the same introduction, development, summary, and further study, which are appropriate for the textbook model. 2. The volume amount: All the textbooks have almost the same frame, but s a big difference in such things as the number of pages, of pictures and charts, of Gothic terminology, and relative importance of each chapter. And all the materials such as pictures and photos are black-and-white, which we think are less helpful to the students` study. 3. The experiment matter: There`s a geat difference in the number, kinds, ratio contents and subject of experiment in each chapter. And there are some distinctive characteristics in the type, level, method, and investigative skills of the experiments. 4. The contents : There are considerable differences in the additional and reduced sections. Therefore, which book is selected is very important, and the teachers should not skip any class-work.

燃料電池 發電 System의 開發에 關한 硏究

尹載殖,金元燮,金斗錫 全北大學校 1982 論文集 Vol.24 No.-

This paper describes the experimental results for a Development of Fuel cell which is connected to a Generator system as a power-source. The fuel-cell power system model used in our experiments is composed of 2kW (100V, 20A rating) alkalielectrolyte H_2-air fuel cell and DC-AC converter. We carried out many experiments under the condition that this fuel-cell power system as a power source was connected with a simulated distribution network. We obtained its static characteristics and transient characteristics when voltage fluctuation or short-circuit failure occurred in the distribution network. From these results, We have found that fuel-cell power system is able to apply to a distribution system. And also, this paper describes basic matters and problems for conceptional design about a feulcell power plant to practical use. We investigate as following factor : ㆍapply points of a fuel-cell power plant in electric power system. ㆍtarget rating of a fuel-cell power plant. ㆍsystem composition of fuel-cells and inverter. ㆍrequired operational performance of its power plant. ㆍestimation of H_2-gas production methods. ㆍtechnical study problems in future We believe firmly that this paper is very useful when the utility introduce a fuel-cell power plant as a power source in electric power system.

발아과정을 통한 3종 식물의 내염성 단백질 합성

정숙주,우제창 木浦大學校基礎科學硏究所 1997 基礎科學硏究誌 Vol.15 No.-

염분을 농도별로 첨가한 배지에서 유채와 무 0.2%때 발아율이 가장 높았다. 염분의 농도별 생장율을 조사한 결과 유채와 무에서 0.4%와 0.6%의 염분이 첨가 되었을 때 생장이 가장 좋았다. 3종 작물을 각기 다른 염분내성 단백질을 생산해내는 것으로 나타나서 유채는 35kD와 26kD의 단백질을 새로 생산해 내었으며 무는 40kD와 16kD 그리고 벼는 0.4%에는 30kD, 고농도에서는 20kD의 단백질을 생산했다. Germination rate of Brassica and Raphanus was observed highest rate at the 0.2% NaCl concentration. Growth rate of Brassica and Raphanus showed maximum value at the 0.4% and 0.6% respectively. Salt resistant protein was biosynthesized with different molecular weight; Brassica synthesized 35kD and 26kD protein, Raphanus with 40kD and 16kD and rice produced 320kD and 20kD protein at the 0.4% and over 0.6% concentration of NaCl respectively.

급성 외상성 기관 및 기관지손상의 치험 1 예

신제균,정종필,홍은석 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.4

Recently, increased traffic accident has resulted in a corresponding increase in incidences of blunt trauma. Tracheal and main bronchial injuries after blunt chest trauma can be life-threatening, and hence early diagnosis and early management of patients with such injuries are essential. A 3-year-old boy was transferred to the Department of Emergency Medicine after a motor vehicle accident in which he sustained multiple blunt injuries consisting of tracheal rupture, left main bronchial rupture, liver laceration, vitreous hemorrhage, and fracture of the iliac wing. The tracheal rupture was managed nonoperatively with intensive respiratory care, while the left main bronchial rupture was managed surgically by bronchoplasty. Postoperative course was uneventful and the patient was discharged without respiratory problems.

혈관모세포종의 임상 분석

김은성,강삼석,이정길,김태선,정신,김재휴,김수한,이제혁 대한신경외과학회 1998 Journal of Korean neurosurgical society Vol.27 No.5