일부 성인의 치과 공포감 관련 요인

김수경 ( Soo Kyung Kim ),김미희 ( Mi Hee Kim ),최현지 ( Hyun Ji Choi ),황정근 ( Jung Geun Hwang ) 한국치위생학회(구 한국치위생교육학회) 2014 한국치위생학회지 Vol.14 No.6

Objectives: The purpose of the study was to investigate the related factors to dental fear in some adults. Methods: A self-reported questionnaire was filled out by 320 adults in Seoul and Gyeonggi-do from April to June, 2013. Except 14 incomplete answers, data were analyzed by SPSS 18.0 program. The questionnaire consisted of general characteristics of the subjects(7 questions), dental fear related factor(18 questions), distrust for dentist(15 questions), and distrust for dental hygienist(11 questions). The instrument for dental treatment fear was Dental fear Survey(DFS) adapted from Kleinknecht and partly modified by Choi. Out of 20 questions, 18 questions were reconstructed and score by Likert 5 scale. Higher score means higher dental fear. Cronbach alpha was 0.959 in the study. The distrust for dentist and dental hygienist was adapted from Choi and reconstructed and score by Likert 5 scale. Higher score means higher distrust for dentist and dental hygienist. Cronbach alpha was 0.937 in distrust for dentist and 0.874 in distrust for dental hygienist in the study. Results: Those who experienced dental pain tended to have dental fear. The reasons for dental fear were as follows; bad breath(2.96 out of 5 points, hereafter represented as of 2.96/5), dental caries(2.88/5), missing teeth(2.87/5) and tooth pain(2.77/5). The distrust for the dentist was the main dental fear in the adults. Conclusions: The dental fear was closely related to gender, experience of dental pain, oral symptoms and distrust for the dentist. As the psychological pain in the patients was mainly influenced by the trustful atmosphere, it is necessary to make the patient easy before treatment.

선행 제왕절개 후의 질식 분만시 성공군과 실패군의 비교연구

최현수(Hyun Soo Choi),이상욱(Sang Wook Yi),오영승(Young Seung Oh),진규섭(Kyu seop Jin),이보연(Bo yon Lee),이선경(Seun Kyung Lee),허주엽(Chu Yeop Huh),김승보(Seung Bo Kim) 대한산부인과학회 1999 Obstetrics & Gynecology Science Vol.42 No.10

제왕 절개의 비율은 최근 까지 지난 20년동안 증가되어 왔으며 이러한 증가는 반복 제왕 절개의 증가와 관련된 것이다. 최근 제왕 절개후 질식 분만에 관한 연구에서는 반복 제왕절개시 올 수 있는 수술 후 합병증, 산모 및 태아의 이환율의 증가 등과 비교해 이 시도가 비교적 안전한 방법으로 등을 보고 하고있는 반면 또한 제왕 절개후 질식 분만시 올 수 있는 자궁 파열과 이로 인한 태아와 산모의 위험성에 관한 보고도 있다. 이에 본원에서는 제왕 절개후 질식 분만을 원해 내원한 산모를 대상으로 성공군과 실패군 사이에 여러 요인을 비교 분석하여 성공에 관여한 인자를 예측하고자 하였다. 연구 대상은 1997년 3월부터 1999년 3월까지 선행 제왕 절개 후 질식 분만을 위해 내원한 환자중 질식 분만 시도시 위험성이 적다고 판단되는 120명의 산모를 대상으로 했으며 성공군과 실패군 사이에 산모의 나이, 제태 연령, 질식 분만한 과거력의 유무, 선행 제왕 절개의 적응증, 초음파로 예측한 태아 몸무게, 신생아 몸무게, 입원시 자궁 경부 상태, Bishop score, CPD index(Cephalopelvic disproportion Index)를 비교 분석 하였다. 120명의 산모중 87명(72.5%)이 성공 하였으며 33명(27.5%)이 실패 하였고 자궁 파열이나 열개와 같은 합병증은 발견되지 않았다. 두 대조군 사이에 산모의 나이(P=0.012), Bishop score(P=0.002), CPD index(P=0.015)에서 의미있는 차이를 보였으며 기타 요인에서는 의미있는 차이를 보이지 않았다. 결론적으로 선행 제절 이후 질식 분만 시도 시에 금기가 아닌 경우 입원시 X선 골반 계측을 통한 CPD index와 Bishop score을 통해 성공 가능성에 대한 예측에 도움을 줄 수 있으며 앞으로 이 요인들과 함께 다른 요인들과의 연관성에 대한 연구를 통해 선행 제왕 절개후 질식 분만 시도시에 올 수 있는 위험성을 줄일 수 있을 것으로 생각된다. 이상과 같은 연구 결과로 또한 추후 성공의 예후 인자로 사용되어 질 수 있고, 앞으로 이 시도의 성공과 관련된 다른 인자와의 연관성을 통한 면밀한 검토가 필요할 것으로 사료된다. Objectives: Vaginal birth or trial of labor after previous cesarean section has become one of the most remarkable changes in obstetric practice. The safety and efficacy of a trial of labor and vaginal birth after previous cesarean are well documented. The purpose of this report is to predict the likelihood of vaginal birth in patients undergoing a trial of labor after previous cesarean delivery using factors known at the time of hospital admission. Method: In this retrospective study, 120 women who attempted vaginal birth at Kyung-Hee University Hospital from March 1997 to March 1999. An attempt to identify possible prognostic factors for success of such a trial was made and we evaluated the variables of significant predictive value and the patients' characteristics in the success group and failure group of women who attempted VBAC. Result: 87 cases(72.5%) in 120 cases succeeded in VBAC and 33 cases(27.5%) failed. In this comparative groups in VBAC, there was significant difference in CPD index(cephalopelvic disproportion index) and Bishop score, but no significant difference in gestational age, the estimated fetal weight by sonography and newborn birth weight. Conclusion: In this study, Bishop score and CPD index and age may be useful and valid predictor of success in VBAC and this information could be particularly valuable. The CPD index may prove most important in determining if a vaginal birth should occur after a cesarean section because it can clearly identify some patients who need a repeat cesarean section.

자궁 적출술 방법 결정을 위한 복식과 질식 전 자궁 적출술의 비교 연구

최현수(Hyun Soo Choi),이선경(Seun Kyung Lee),김승보(Seung Bo Kim) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.6

자궁 적출술은 부인과 영역에서 가장 많이 시행되는 수술의 하나로 본 연구는 복식과 질식 전 자궁 적출술을 시행받은 환자의 수술의 적응증, 특징, 환자의 예후를 비교하여 자궁 적출술의 방법의 결정에 도움을 주고자 하였다. 1994년 1월부터 1999년 1월까지 본원에서 양성 자궁질환으로 복식과 질식 전 자궁 적출술을 받은 환자 각각 200명을 대상으로 하였으며 환자의 연령, 분만력, 수술전 적응증, 적출된 자궁의 무게, 총 수술 시간, 출혈량, 합병증, 동반된 수술, 입원 기간을 비교 분석 하였다. 1. 수술전 적응증은 두 비교군 모두에서 자궁 근종이 가장 많았으며 자궁 경부 상피내암, 자궁 선증, 기타(부정 출혈, 부속기 종양)등이 있었다. 2. 환자의 연령, 분만력에는 유의한 차이가 없었으며 적출된 자궁의 무게는 복식이 질식 보다 유의한 증가를 보였고 질식에서 자궁의 무게가 280gm 이상인 경우도 18%(36/200)로 나타났다. 3. 총 수술 시간, 입원 기간, 출혈량에서 질식이 총 수술 시간과(P=0.002) 입원 기간이 짧고(P=0.000), 출혈량(P=0.000)도 의미있게 적은 것으로 나타났다. 4. 수술 후 합병증은 질식 환자의 4%, 복식 환자의 7%였고 통계적 유의성은 없었다. 5. 과거 개복 수술력은 질식에서 18%(36/200), 복식에서 28.5%(57/200)의 환자가 수술력이 있었는데, 질식 전 자궁 적출술 환자중 과거 제왕 절개를 받은 환자에서 자궁이 전 복벽에 유착되어 개복 수술로 전환한 예가 있었고 97.2%(35/36)에서 성공적으로 질식 자궁 적출술이 이루어졌다. 6. 질식 전 자궁 적출술을 시행받은 환자에서 부속기 절제술을 함께 시행한 환자와 자궁 적출술만을 시행받은 환자의 총 수술시간, 출혈량, 합병증에 유의한 차이가 없었다. 환자의 자궁의 크기나 과거 수술력, 부속기 절제의 요구가 더 이상 질식 방법의 금기가 아니며 질식 전 자궁 적출술은 수술 시간과 입원 기간, 출혈량을 줄일 수 있는 안전한 수술로 앞으로 이러한 질식 전 자궁 적출술에 많은 관심과 수련으로 부인과 수술에서 더 많이 사용 되어 져야 하겠다. Objectives : The most often perfomed major operation in gynecology is hysterectomy.Our purpose was to compare the indications, charateristics and outcomes of patients undergoing total abdominal hysterectomy and total vaginal hysterectomy and to help to establish guidelines to determine the route of hysterectomy.Method : The hospital charts of 400 women who underwent elective inpatient hysterectomy at Kyung-Hee University hospital from January 1994 to January 1999, were abstracted retrospectively. Data were collected regarding patients, age, parity, preoperative indications, the route of hysterectomy, uterine weight, operative and postoperative complications and the length of stay. The operative indications were benign uterine disease except from uterine prolapse. Bisection or combined morcellation were used in most cases to obtain reduction in uterine size.Result : Patients in whom the vaginal route was successful included 18% of those with uterine weights exceeding 280gm. There was statistically significant difference for uterine weight, operative time, bleeding amount, the length of stay in two camparative group. 4% of vaginal hysterectomy and 7% of total abdominal hysterectomy has documented operative complications.Conclusion : Vaginal hysterectomy is safe operation with few intraoperative and postoperative complications without notable blood loss. Vaginal hysterectomy allow one to shorten the operating time and allows early postoperative discharge of some patients from hospital. Skilled performance of vaginal hysterectomy is worth greater attention and should be used more often in gynecological study.

능란한 로봇 손의 운동을 위한 알고리즘 개발 및 구현에 관한 연구

崔京三,李鍾洙 弘益大學校 科學技術硏究所 2001 科學技術硏究論文集 Vol.12 No.-

This study is performed by experiments with master hand and slave hand. These hands are very similar to human hands because these hands have the twenty degree of freedom and five finger. Master hand plays a part as a tool of getting grasping data and learning grasping algorithm, and slave hand which is multi-fingered robot hand performs the algorithm. Experiments assume that all informations of grasped objects is known. Several subjects put on the master hand and grasp the objects of various shape and size. By using the data from the master hand, we analyze the patterns of grasping of human hands. After analyzing grasping patterns, we generalize grasping of each case and analogize algorithm of grasping. We prove two facts by appling this algorithm to slave hand. One is that the slave hand is multi-fingered robot hand which can perform dexterous manipulation and the other is that we prove the validity of this algorithm.

로봇 제어를 위한 기준경로의 수정 알고리즘의 개발

崔京三,李鐘洙 弘益大學校 科學技術硏究所 1996 科學技術硏究論文集 Vol.7 No.2

The computed-torque mehtod (CTM) shows good trajectory trcking performance in controlling robot manipulator if there is no disturbance or modelling errors. But with the increase of a payload or the disturbance of a manipulator, the tracking errors become large. So there have been many researches to reduce the tracking error. In this paper, we propose a new control algorithm based on the CTM that decreases a tracking error by generating new raference trajectory to the controller. In this algorithm we used the concept of sliding mode theorty and fuzzy system to reduce chattering in control input. For the numerical simulation, we used a 2-link robot manipulator. To simulate the disturbance due to a modelling uncertainty, we added errors to each elements of the inertia matrix and the nonlinear terms and assumed a payload to the end-effector. In this simulation, prposed method showed better trajectory tracking performance compared with the CTM.

경지정리사업 환지업무 전산화 기본골격구조

최수명,한경수 全南大學校 農業科學技術硏究所 1998 農業科學技術硏究 Vol.33 No.-

This study aimed at designing the basic framework for the full computerization of replotting process in farm land consolidation project through the integrated evaluation works between its inner and outer environments. The basic framework developed in this study is consisted of 3 main systems ; 1) main replotting process system supporting for data collection/analysis, alternative planning/design formulation and determination, 2) data/information system for communication between interested groups, 3) process control system for orderly control/management of overall process.

멀티 에이전트 기반 샾 플로워 제어 시스템

최경현,조수정 朝鮮大學校 機械技術硏究所 2006 機械技術硏究 Vol.9 No.1

This paper addresses an intelligent agent-based shop floor control system for Flexible Manufacturing System(FMS). With an intelligent agent approach, the FMS will be achieve a adaptability to change of manufacturing environment. As the development methodology of shop floor control system, an object-oriented modeling technique is employed for building models associated with FMS operation. The active agent is contributed to control components of FMS in real-time, whereas the coordinator agent has great role. It communicates with other active agents to get information about status on system and generates the next optimal task through the making-decision logic and dispatch it to other active agent.

UML를 토대로 한 객체지향 데이터베이스 스키마 설계

최문영,주경수 순천향대학교 부설 산업기술연구소 2001 순천향 산업기술연구소논문집 Vol.7 No.1

The final stop in this trip through the world of database design is the object-oriented schema. Mapping a UML data model to an object-oriented schema is straightforward, though there are as always a few issues to consider. Many issues arise because OODBMS vendors do not adhere to any schema definition standard. Other issues arise out of the ingerent nature of persistent object design, appearing in all OODBMS products and in the ODMG standard as well. Therefore, in this paper UML data model conversion by object-oriented schema study.

구내 표준 방사선 사진촬영의 위치 표준화

최봉인,나경수 大韓口腔顎顔面 放射線學會 1991 Imaging Science in Dentistry Vol.21 No.2

This study was performed to evaluate the geometric standardization of periapical intraoral radiography. Image distortion was measured by analysing serial radiopraphy obtained from dry skull using 5 types of bite registration device. After 16 weeks, the angular distortion of Pattern resin was 0.26±0.14 degree(Horizontal angle 0.17±0.14, Vertical angle 0.16±0.11) which was the lowest among the 5 registration device, and that of putty type Exaflex was 0.49±0.35 degree(Horizontal angle 0.42±0.35, Vertical angle 0.17±0.13) which was the highest. The mean amount of distortion variance of Tooth shade acrylic at each experimental period was 0.06±0.08 which was the lowest among the 5 registration device, and that of XCP alone was 0.11±0.13 which was the highest.

Prostaglandin E₂의 子宮內 投與가 家兎의 卵巢機能에 미치는 影響에 關한 實驗的 硏究

崔鏡淑,羅重烈,李壽鍾 고려대학교 의과대학 1983 고려대 의대 잡지 Vol.20 No.3

The effects of intra-uterine administration of Prostaglandin-E₂on the ovary and plasma steroid hormones were studied. Pseudopregnancy was induced in seven rabbits by the injection of 50㎍ of ethinyl estradiol and 100IU of hCG subcutaneously. And these seven pseudopregnant rabbits served as control group. In the prostaglandin-E₂ was implanted in uterus on Day seven under laparotomy and uterine incision with pentothal anesthesia. The plasma estrogen and progesterone level was determined by radioimmunoassay with three days interval in both control and prostaglandin=E₂ treated group. The uterus and ovaries were submitted to histologic study on Day 30. The following results were obtained; 1. Serum progesterone level in intra-uterine prostaglandin-E₂-implanted pseudopregnant rabbits was decreased at 14th day of pseudopregnancy, while the progesterone level of normal pseudopregnant rabbits was decreased from 15th day of pseudopregnancy and returned to normal values by 18th day. 2. Serum estrogen levels of pseudopregnant rabbit was higher than pretreatment state and returned to normal value by 30th day, while, in prostaglandin-E₂treated group, the serum estrogen values was decreased at 11th and 18th day below the level of pretreatment state and it was more decreased at 28th day. 3. The corpus luteum regresses from 15th day in control group, but in prostaglandin-E₂ Treated group, the corpus luteum was indistinct. The numbers of follicles in control group were 4-5 in number, while, in prostaglandin-E₂treated group, they were increased to 7-11 in number. The endometrium was papillary secretory patterns in control group, while, in prostaglandin-E₂ treated group, the endometrium was shown to have proliferative patterns.