• 치과방사선
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• 제24권2호
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• pp.239-247
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• 1994

20 radicular cysts of primary teeth mimicking dentigerous cyst were reviewed. The following results were obtained. 1. The patients' age ranged from 7 to 14 years. Males(60%) were more involved than females(40%). 2. The mandible(85%) was affected more frequently than the maxilla(15%) The mandibular deciduous molar area(80%) was the most frequently involved. 3. The diameter of the cyst varied from 10 to 30㎜. 55% of permanent successors showed underdeveloped roots less than one-third. 4. The etiologic factors were pulp-treated teeth(65%), severe caries (20%), trauma(10%), deep amalgam filling(5%).

• 한국치위생학회지
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• 제10권3호
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• pp.441-448
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• 2010

Objectives : This study was conducted in order to investigate the percentage of adolescents who brush their teeth after lunch and its related factors using raw data from the Fourth Korea National Health and Nutrition Examination Survey. Methods : In order to extract adolescents to be subjected to this study, 300 adolescents between the age of 12 to 18 who are currently attending junior and senior high school were chosen out of a total of 4,594 subjects. The results from the health surveys and the oral checkup results from the medical examination conducted on these adolescents were analyzed. Results : 1. The percentage of adolescents who brush their teeth after lunch was 33.9%. 2. The percentage of the adolescents who brush their teeth after lunch differed significantly according to the gender (p<0.001), age (p<0.05), the time of their recent visit to the dentist (p<0.05), and whether they had suffered from permanent tooth caries (p<0.05). 3. The factors which affect whether the adolescents brush their teeth after lunch was their gender, the total number of the times they brush their teeth per day, and their age. Conclusions : Effective oral health education methods should be reinforced in order to increase the percentage of the adolescents who brush their teeth after lunch.

• Restorative Dentistry and Endodontics
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• 제22권1호
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• pp.193-208
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• 1997

Much evidence now exists from both in vivo and in vitro studies to support the claim that small caries lesions can 'heal'. But, there are still different views on the mechanism of remineralization. So in order to find the best condition for the remineralization of incipient dental caries in maximum efficient way, the author conducted the experiment which reveals the effect of pH on remineralization. 40 specimens of sound permanent teeth without demineralization or crack, $100{\mu}m$ in thickness, were immersed in lactic acid buffered demineralization solution for 4 days. Dental caries with surface zone and subsurface lesion were artificially produced. All specimens were immersed in lactic acid buffered remineralization solution of pH 4.0, 4.5, 5.0, 5.5 containg fluoride ion for 10 days. The results were obtaind by observing the specimens for every 10 days under polarized microscopy at x25. 1. Remineralization did not occur in entire depth of body of lesion at given degree of saturation and concentration of fluoride ion. 2. The pattern of remineralization has increased according to increase of pH. So it can be concluded that supersaturated solution with fluoride ion can be affected by pH in remineralization of enamel, and pH 5.5 seems to be very effective in remineralization of deep and surface zone of dental caries. However, more complex factors exist in achieving complete remineralization and further continuous researches are needed to clarify the factors.

• 대한심미치과학회지
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• 제8권1호
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• pp.76-82
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• 1999

Zinc phosphate cement has long been the material of choice for permanent luting of cast restorations, and through many years of use has been considered effective to retain castings. However, cast restorations cemented with this material have been susceptible to secondary caries. Glass ionomer luting agents become available in the late 1970s. These material s, through release of fluoride, show considerable promise as a means of reducing secondary caries. Other favorable traits include significantly less disintegration in vivo than zinc phosphate cements, a film thickness comparable to that of zinc phosphate cement, and adhesion to tooth structure. Compomer materials were created in 1993 as a filling material for deciduous teeth, cervical lesions, and class III cavities. In the meantime, compomer have been developed as chemical hardening cements for cast gold restorations. The aim of this paper is to review the articles on luting cements to help the choice of dental cements.

• 한국학교보건학회지
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• 제8권2호
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• pp.305-314
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• 1995

A comparative study on the effects of the water fluoridation program and fluoride mouth rinsing program in the elementary school children. This study was performed to compare the oral health status of permanent teeth for children of the caries prevention effects by using methods of fluoride 309 children for water fluoridated program, 240 for fluoride mouth rinsing program and 248 for control group. The DMFS rate, DMFT index, soft and hard deposite rate were analysed from the oral examination. And 300 questionares from the parents who lived in Cheong ju city were evaluated to see the situations of using the tap water. The results were as follows; 1. Caries experience rate in permanent dentition was the lowest in fluoride mouth rinsing group. 2. It was estimated that soft deposite rate was comparatively low in the fluoride mouth rinsing group but calculus deposite rate was no significant difference in each other groups. 3. The 72.0 percentage of parents who lived in non fluoridated water area were misunderstood that they lived in water fluoridated area. 4. The 66.8 percentage of residents used the piped water as drinking water. 5. It was recommended that fluoride mouth rinsing program was suggested in rural area, on the other hands, toothbrusing program in urban area with water fluoridation to prevent the dental caries for school children.

• 한국학교보건학회지
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• 제6권2호
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• pp.56-68
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• 1993

The primary school age are important period that the children exchange the deciduous teeth for permanent teeth, there are so many outbreak of dental caries which is major oral diseases periodontal disease begins, and malocclusion may be brought about. The purpose of this study is to suggest the fundamental data for enforcement of dental health in primary school age as analyzing the curriculum contents and amount on dental health in primary school course. The data were investigated from 103 volumes of 139 textbooks of second semester in 1992 and first semester i 1993 except some subjects that the quantitative analysis is impossible such as arithmetic a problem in arithmetic, observation, music, fine arts and so on. The contents of all textbooks were analyzed separating into paragraph and picture, the contents for dental health were classified into amount, item, teaching method. The results are as follows: 1) The paragraphs on public health were 3.992 among total paragraphs 69,789 as 5.72%. And the picture were 7.41% as 923 pieces of total 12,457 ones. 2) For dental health, there were 73 paragraphs of 69.789 ones (0.10%) and 42 pieces of 12.457 pictures (0.34%). 3) According to the investigation of curriculum that had the paragraphs related to dental health the most, it turned out to be in order of physical education nature. Right life story, and right life story, righ life, physical education for the picture. And for the grade, it appeared to be in order of sixth, third first grade for the paragraphs and first, third, sixth grade for the pictures. 4) In the attitude and knowledge of item for dental health by grade, it turned out that the paragraph was 76.71%, the behaviour was 23.29%. On the other hand, the knowledge was 35.17% and the attitude was 64.28% for the picture. 5) At the commentary of curriculum in primary school, the goal of health education by each grade was just keep clean and strong teeth, know the role of teeth and the cause of dacayed teeth, and prevent it in second and third grade.

• 대한장애인치과학회지
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• 제1권1호
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• pp.25-32
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• 2005

The purpose of this study was to furnish data on the disabled's oral health status of the disabled in Busan, Korea. Material and Methods: Two dentists who were well experienced in caries examination surveyed the oral health status on 793 of disabled men in Busan from March to June in 2000 under natural solar light with plane mirror by the criteria which are suggested by World Health Organization (WHO). Results: The number of present permanent teeth of the disabled are lower than the undisabled. DMF rate and DMFT indices of the disabled were higher than the undisabled. DT rate of the disabled was higher than the undisabled. Conclusions: The development of community oral health care programs for the prevention and treatments of dental caries for the disabled is needed and active administrative policies should be established for the promotion of the disabled's oral health.

• 치위생과학회지
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• 제18권4호
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• pp.252-264
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• 2018

본 연구는 보육 교육기관 교사와 학부모를 대상으로 영유아 구강보건교육 프로그램 개발을 위해 구강보건교육 요구를 바탕으로 구강보건교육 내용의 우선순위를 분석하였다. 이를 위해 2017년 12월 26일부터 2018년 1월 21일까지 서울, 경기, 인천, 충청, 경상, 세종, 부산 지역의 보육 교육기관 교사 212명과 학부모 215명 대상으로 설문조사를 실시하였다. 영유아 구강보건교육의 요구는 교사와 학부모가 각각 89.7%, 88.8%로 높게 나타났고, 구강보건교육 담당자로 보육 교육기관의 교사와 학부모는 '영유아전담 치과위생사'를 가장 많이 선호하였다. 구강보건교육 내용의 우선순위 결정을 위해 대응표본 t-검증과 Borich 교육요구도, The Locus for Focus 모델 등의 3단계 분석방법을 활용하였다. 연구 결과, 구강보건교육 8개 영역의 40개 내용 모두 현재수준과 필요수준 간에 유의미한 차이가 있는 것으로 나타났고, 구강보건교육 내용에 대한 보육 교육기관의 교사의 최우선 순위는 7개 항목, 학부모의 최우선 순위는 9개 항목으로 두 집단의 최우선 순위를 확인할 수 있었다. 보육 교육기관의 교사와 학부모가 구강보건교육의 최우선 우선순위 내용은 5개 항목으로 '치아우식증의 진행과정', '치아우식증의 증상', '치아우식증을 예방하는 방법', '영구치의 맹출 순서', '치아 탈구 시 응급처치 방법'이었다. 보육 교육기관의 교사가 최우선으로 요구하는 구강보건교육 내용은 '유치의 맹출 순서', '영구치의 기능'이 추가되었고, 학부모가 최우선으로 요구하는 구강보건교육 내용은 '불소도포의 효과', '영구치의 개수', '부정교합의 예방법', '부정교합의 치료시기'가 추가되었다. 향후 영유아 구강보건교육 프로그램을 개발할 때에는 본 연구의 결과를 토대로 보육 교육기관의 교사와 학부모가 공통적으로 요구하는 최우선순위 구강보건 교육 내용 5개 항목을 포함하고, 보육 교육기관의 교사대상 구강보건교육에서는 7개 교육 내용, 학부모대상 구강보건교육에는 9개의 교육 내용이 우선적으로 반영된 피교육자 요구도 중심으로 영유아 구강보건교육이 개발되어야 할 것이다.

• 대한소아치과학회지
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• 제24권3호
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• pp.543-548
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• 1997

The first permanent molar takes important place in the occlusion. Malposition of the lower first molar is frequently due to mesial migration, which is occurred by early exfoliation of the second deciduous molar or proximal caries of deciduous teeth. Above things happen without any consideration of space maintainer, prompt measures for space regaining have to be started. Especially in the case with early loss of the second deciduous molar, it has been said that there is no suitable appliance for maintaining the space before the eruption of the permanent first molar. In distalizing the upper first molar, headgears have been routinely used, which its result was definitely depended on cooperation of the patients. Nowadays, appliances such as pendulum appliances, K-loop, magnets, which can be used without cooperation of the patients, are introduced. Jones Jig, one of the molar distalizing appliances, was used on the patients who visited department of pediatric dentistry in Seoul National University Dental Hospital complaining of no eruption space for the lower second bicuspid. Either removable splint or lingal arch was used as the anchorage. Jones Jig was favorably used in the lower molar, where vestibule is shallow, and this is a case report on the satisfactory result thereof.

• 대한소아치과학회지
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• 제35권1호
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• pp.144-150
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• 2008

악성종양을 치료하는데 있어서 수술, 화학요법, 방사선 치료 등을 포함한 항암치료는 악성도의 증가를 방지할 뿐만 아니라 항암제의 독성과 용량을 줄여주는 역할을 한다. 방사선 치료의 효과는 일반적으로 수회에 걸쳐 조사시 종양이 더 효과적으로 파괴된다. 환자는 주로 두경부에 국소적으로, 때로는 전신에 걸쳐 방사선을 조사받게 된다. 그러나 방사선 요법의 부작용으로 구강건조증, pH가 낮은 타액의 생성, 구강미생물의 변화 등으로 인한 방사선 우식증과 미각 이상, 점막염 등 다양한 구강내 합병증을 동반하게 된다. 그리고 성장하고 있는 소아의 경우에는 발육 중인 치열과 지지구조들에 큰 영향을 줄 수 있다. 치근 발육의 장애, 법랑질 형성부전, 왜소치, 무치증, 치아맹출 장애, 하악이나 상악의 저형성 등과 같은 다양한 현상이 나타날 수 있으며 이러한 현상은 비가역적이다. 특히 발생과정 중에 있는 치아는 그 발생단계에 따라 영향을 받는다. 본 증례는 치열 발육 단계에서 국소적 혹은 전신적으로 방사선 치료를 받은 어린이에서 나타난 영구치 치근 발육장애에 대해 보고하는 바이다. 이 환자들은 생후 $3{\sim}4$세 경에 악성 종양 치료를 위해 방사선 치료를 받았고 영구치 치근의 저형성, 조기 치수 폐쇄 소견을 보였다. 방사선 조사로 인한 구강환경 변화로 인해 우식발생률이 높으므로 철저한 구강 위생교육과 불소도포 등이 필요할 것이며, 짧은 치근을 가진 치아는 동요도의 증가 여부와 관리를 위해 정기적인 방사선 촬영 및 검진이 필요하다.