신흥개발국의 학교구강보건사업 개발

학위논문 (박사)-- 서울대학교 대학원 : 치의과학과, 2015. 2. 백대일.Simplified and Modified Atraumatic Restorative Treatment (SMART) program provides school children the removal of caries lesions with hand instruments and restoration of cavities using encapsulated glass ionomer in communities without access to conventional dental clinics in emerging countries. The purpose of this study was to investigate the effectiveness of SMART program in children to adopt in emerging countries, and to evaluate patients and dentists responses of the SMART program. The author conducted SMART program with 19 Lao dentists in kindergartens in Vientiane, Lao PDR. A total of 368 kindergarten children were provided SMART restoration and evaluated after one year. A questionnaire survey consisted of 8 items was conducted on SMART program to 118 related parents. 19 Lao dentists who practiced SMART program were questioned about opinions and practices of the program. The 1-year survival rate of fully and partially retained SMART were 76.2%. There was no significant difference among age groups of children. The results showed a relatively higher success rate in the posterior teeth than anterior teeth. And it clearly demonstrate that the effectiveness of the SMART program depends on the experience of practitioners. (p<0.01) A total of 98% of Lao parents responded that SMART program was useful and showed positive attitude toward the program. Most of the children did not report discomfort. All 19 Lao dentists responded to participate in the sustainable SMART program. This study showed that it would be recommended that SMART program to prevent and treat dental caries effectively in emerging country.Abstract I. Introduction II. Background III. Materials and Methods IV. Results V. Discussion VI. Summary References Appendix 국문초록Docto

Semiological and Electroencephalographic Characteristics of Kainic Acid-Induced Status Epilepticus in Rats

Background : Status epilepticus (SE) shows stereotyped progression of electroencephalogram (EEG) and behaviors in human and some SE models. We analysed semiologic features with the electroencephalographic characteristics of kainic acid (KA)-induced SE which showed different patterns from the previously reported patterns of SE. Methods : Seventeen male Sprague-Dawley rats weighing 150~220 grams were used. SE was induced 5~7 days after the placement of epidural electrodes on the rats, using 13 mg/kg kainic acid i.p.. EEGs were recorded and behaviors were continuously observed until the end of SE. Results : After the initial akinesia which was apparent within minutes of the KA injection, limbic motor seizure (LMS) composed of facial clonus, head nodding, and akinesia were repeated. Each LMS progressed into more vigorous patterns composed of facial clonus, head nodding, bilateral upper extremity clonus and rearing, without akinesia. Each cycle was repeated as the SE progressed. Severe LMS made up of facial clonus, head nodding, bilateral upper extremity clonus, rearing, falling, and jumping was followed and reiterated. After severe LMS, rats entered subtle SE. In the EEG, repeated discrete seizures mostly consisted of low voltage regular sharp waves and spikes with flat periods. After entering into the LMS, discrete seizure, merging seizure, continuous ictal discharges & periodic epileptiform discharges (PEDs) appeared sequentially in a single cycle and also reiterated. Even during subtle SE, rhythmic cycles were composed of alternating continuous ictal discharges and PEDs. PEDs were gradually replaced by sharp waves or spikes and rats recovered from SE. Conclusions : Semiologic features and the EEG sequence of KAinduced SE were composed of a series of rhythmic cycles, which have separate EEG patterns in a single cycle. Late EEG patterns of SE were more prominent as the SE progressed.OAIID:oai:osos.snu.ac.kr:snu2001-01/102/2014017262/1SEQ:1PERF_CD:SNU2001-01EVAL_ITEM_CD:102USER_ID:2014017262ADJUST_YN:NEMP_ID:A079623DEPT_CD:801DEPT_NM:의학과CONFIRM:

의치세정제의 구취감소와 미생물 감소 효과에 관한 연구

Thesis(masters) --서울대학교 대학원 :치의학과 (예방치학전공),2009.2.Maste

Worker safety perception analysis of South Korean construction sites

Purpose. The aim of this article was to measure the safety perception level of workers on a South Korean construction site and investigate safety problems using the Nordic occupational safety climate questionnaire (NOSACQ-50). Methods. The survey was carried out via the NOSACQ-50 with 175 workers from five South Korean construction companies to evaluate their perception level. The results were then compared with the NOSACQ-50 criteria. Results. The safety perception of this South Korean construction site is high when compared with the NOSACQ-50 criteria. This high level was especially pronounced for the seventh dimension of the efficacy of the safety system, which showed the highest level among all dimensions. In addition, we suggested improvements and interventions to sustain a safety climate amongst workgroups. Conclusions. This study confirms that the seventh dimension showed the highest safety perception amongst all dimensions in South Korea. In the future, these findings can be utilized to develop an evaluation tool for the safety climate of the construction industry in South Korea