• 한국치위생학회지
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• 제9권1호
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• pp.85-99
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• 2009

The purpose of this study was to examine the awareness of dental hygienists about on-the-job training in public health sector in an effort to stir up their on-the-job training(OJT) and to facilitate the planning of successful educational programs. A survey was conducted nationwide for two months in October and November 2006, and the answer sheets from 811 dental hygienists were analyzed. The findings of the study were as follows: 1. 40.7 percent of the dental hygienists investigated never underwent OJT geared toward public officials, which wasn't linked to oral health. 2. As for the experiences of professional oral health education(or OJT) as members of local public dental clinics by service term, 64.9 percent of the dental hygienists who had worked for less than 10 years never received that kind of education, and 70.5 percent of those with a 15-year or more career received that education just once(p<0.05). The dental hygienists who received that education viewed it favorably, as they found that to be conducive to their job performance. In the event of those who didn't receive that education, a lack of chance to do that was the most common reason. 3. In regard to motivation of receiving professional oral health education(or OJT), the largest rate of the dental hygienists who stood at 71.9 percent received that education voluntarily in pursuit of self-development and better job performance. The training programs provided by the oral health division of the Ministry for Health, Welfare and Family Affairs were excluded in this study. As to educational spending by the dental hygienists or their employers over the past two years, 56.9 percent paid 100 thousand to less than 500 thousand won. 46.6 percent never paid for that, and about 15.5 percent received education at their own expenses. Concerning the form of OJT, lectures were provided to 50.3 percent. 4. The dental hygienists who worked in local public health clinics hoped for more intensive and better education and training related to oral health projects.

• 한국치위생학회지
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• 제14권3호
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• pp.417-424
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• 2014

Objectives : The purpose of the study is to develop and to evaluate the oral health education program using computer assisted instruction(CAI) for the elementary school students. This study was carried out from November, 2012 to February, 2013. Methods : The subjects were 188 elementary school students of the first, second, and third grades in Buk-gu, Busan. The education was provided as computer assisted instruction and conventional classroom education. Three trained dental hygienists recorded three times of knowledge of oral health, oral health attitude, oral health behaviors and the plaque control index(O'Leary index). Results : CAI group showed high score of oral health knowledge of 6.74 points, 8.62 points and 8.38 points(p<0.01). In oral health attitude, the scores were 7.40 points, 8.01 points, and 7.99 points(p<0.05). In oral health behavior, the scores were 5.47 points, 6.14 points, and 5.61 points(p<0.05). The plaque control index was 22.59 points, 19.69 points, and 21.44 points(p<0.01). Conclusions : CAI education program of this study showed the effective education for the elementary school students. So the CAI education program can be useful and disseminated to the community project.

• 대한치과교정학회지
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• 제44권4호
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• pp.195-202
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• 2014

Objective: A low-viscosity resin (infiltrant) was used to inhibit the progression of white spot lesions (WSLs) and resolve associated esthetic issues. An alternative pretreatment was explored to increase the pore volume of the surface layer of the WSLs. Also, the penetration effects of the infiltrant were evaluated for various pretreatments. Methods: Sixty two artificial lesions were fabricated on bovine teeth. As a positive control, 15% HCl gel was applied for 120 seconds. Further, 37% $H_3PO_4$ gel was applied for 30 seconds using three methods. The samples were divided as follows: $H_3PO_4$ only group, $H_3PO_4$ sponge group, and $H_3PO_4$ brush group. The acid was gently rubbed with the applicators (i.e., a sponge or brush) throughout the application time. To compare the effects of resin infiltration, twenty paired halves of specimens were treated with an infiltrant (ICON$^{(R)}$). Results: Thicknesses of the removed surface layers and infiltrated areas were evaluated by confocal laser scanning microscope. The positive control and the 37% $H_3PO_4$ brush group failed to show significant differences in the removed thickness (p > 0.05); however, the mean percentage of the infiltrated area was higher in the 37% $H_3PO_4$ brush group ($84.13{\pm}7.58%$%) than the positive control ($63.51{\pm}7.62%$, p < 0.001). Scanning electron microscope observations indicate higher pore volumes for the 37% $H_3PO_4$ brush group than for the positive control. Conclusions: Application of 37% $H_3PO_4$ with a brush for 30 seconds increased the pore volume of WSL surface layers and the percentage of infiltrated areas in comparison to the use of 15% HCl for 120 seconds.

• 대한치과의사협회지
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• 제57권10호
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• pp.560-568
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• 2019

Purpose: This study evaluated the antibacterial effects of curcuma, ginger, and finger root extracts in water-soluble powder on planktonic Streptococcus mutans(S.mutans), which is known to cause dental caries, in order to confirm whether these extracts could perform as photosensitizers for the effects of photodynamic therapy (PDT). Methods: This study used the strain of streptococcus mutans ATCC 25175 distributed by the Korean Collection for Type Cultures of the Korea Research Institute of Bioscience & Biotechnology. Commercial edible curcuma, ginger and finger root were used as the natural extracts for the use of photosensitizer. To extract organic solvent, 3 g of each powder was mixed in $30m{\ell}$ of dimethyl sulfoxide (DMSO, VWR, Germany) before extraction. $1.8m{\ell}$ of the photosensitizer solution, manufactured in the concentrations of 5, 0.5, and $0.05mg/m{\ell}$, was mixed with $0.2m{\ell}$ of the S. mutans culture medium that had been cultured for 2 days. To induce the photodynamic reaction, Qraycam (AIOBIO, Seoul, Korea) equipped with 405 nm LED was used to expose light for 5 minutes to irradiate 59 nW energy for 300 seconds. Results: Compared with the case with no light, a higher photodynamic therapeutic effect was confirmed with $0.05mg/m{\ell}$ curcuma powder extract, the concentration of $0.5mg/m{\ell}$ and LED light of 405 nm wavelength (p=0.000, p=0.003). $0.05mg/m{\ell}$ of curcuma powder extract and the concentration of $0.5mg/m{\ell}$ showed 100% antibacterial effect when exposed to light, whereas the concentration of $5mg/m{\ell}$ showed 11.95% antibacterial effect. When exposed to light, $0.05mg/m{\ell}$ of ginger powder extract showed an antibacterial effect which didn't statistically decrease. The concentrations of $0.5mg/m{\ell}$ and $5mg/m{\ell}$ did not show any antibacterial effects. As a result of examining any photodynamic therapeutic effects of finger root powder extract on S. mutans, no statistically significant effect was found. Conclusion: The curcuma powder extract is expected to perform as a photosensitizer. Even though belonging to the same ginger family, ginger powder and finger root powder seem difficult to perform as photosensitizer.

• 한국치위생학회지
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• 제9권4호
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• pp.593-605
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• 2009

Objectives : In an aging society, as the necessity of the elderly oral health care was increased, the oral health dimensions was a lot more visible important to a community public health service for the quality of life improvement. In oral health care of the elderly, the periodic scaling treatment was required to manage periodontal tissue care. Methods : So, the 319 elderly people were selected by a random sampling method, those who are visitors of 5 public health centers in the South Jeolla Province. based on the findings of personal interview questionnaires and oral health states from these elderly subjects, we made a comparative analysis of oral health states of the elderly scaling program subjects. Results : 1. Among the participants, 52.4% of the elderly benefited from scaling care project otherwise 47.6%, the subjects with periodontal diseases were 78.4%, whereas 21.6% of the ones who don't. 2. In regard to perceptions of oral cavity abnormal symptoms, findings revealed that the teeth smart sensation with something cold was 'yes' 62.7%, 'No' 37.3%, gingival bleeding was 'yes' 61.4%, 'No' 38.6%, oral odor(halitosis) was 'yes' 63.3%, 'No' 36.7%, and dried mouth was 'yes' 63.3%, 'No' 36.7%. 3. The study data showed 73.2% of periodontal disease subjects, and 24.6% of no periodontal diseases responded that they have hyperesthesia and 67.6% of periodontal diseases, 39.1% no periodontal diseases responded that they have gingival bleeding. 4. In comparison of the presence of periodontal disease with scaling service program state, it is show that the elderly scaling service program was significant statistically in Elderly's periodontal disease prevention. according to analysis, 52.4% of the subjects with and 34.8% of no periodontal diseases received the Elderly scaling service program(p<0.05). Conclusions : Therefore, oral health care of the elderly, a community public health service the periodic scaling treatment was required to manage periodontal tissue care.

• 치위생과학회지
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• 제12권2호
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• pp.139-144
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• 2012

본 연구는 2007년부터 시작된 대전 양치교실사업의 효과를 평가하고자 양치교실 실험군 59명과 대조군 60명을 대상으로 하여 2011년 6월- 9월까지 구강검사와 COHIP를 비롯한 설문조사를 실시하였다. 두 군 간의 경제적 상태와 주관적인 건강인식에 차이를 보여 이들 변수를 통제한 후 자료를 분석한 연구 결과는 다음과 같다. 1. 양치교실이 있는 실험군은 대조군과 비교하여 우식경험영구치수, 우식경험영구치면수 모두에서 유의한 차이가 없었다. 2. 양치교실이 있는 실험군은 대조군과 비교하여 치면세균막지수는 유의하게 낮았다(p<0.05). 3. 양치교실이 있는 실험군은 대조군과 비교하여 아동구강건강관련 삶의 질이 유의하게 양호하였다(p<0.01). 4. 양치교실이 있는 실험군은 대조군과 비교하여 불소와 치아홈메우기 사업에 관한 지식이 유의하게 높았다(p<0.01). 5. 양치교실이 있는 실험군은 대조군과 비교하여 구강보건행위면에서 유의한 차이를 보이지는 않았다. 6. 대조군이 양치교실이 있는 실험군과 비교하여 학교집단잇솔질사업에 관한 긍정적인 태도를 보였다(p<0.05) 따라서, 초등학교 양치교실사업은 치면세균막지수 감소효과와 구강건강 관련 삶의 질 증진효과를 가지고 있으나 치아우식경험도를 감소시키기 위해서는 부가적인 치아우식예방법이 요구되며 양치교실 운영시 양치교실이 효율적으로 이용될 수 있도록 운영방안과 학생들의 동기를 유발할 수 있는 프로그램 개발이 필요하다고 사료되었다.

• Journal of Preventive Medicine and Public Health
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• 제9권1호
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• pp.39-47
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• 1976

The organized community is the one of the best system for the effective public health administration, and a model area was selected for the study to see what would be achieved when a certain small community is placed under the special public health control based on the family unit. The 178 families involved total of 875 populations. The rate of vaccination with B.C.G. among 191 infants and children could be increased upto 100.0% from 72.5% of the time when the basic study was performed after 8 months period of this study; 99.0% from 47.1% with D.P.T.; 96,9% from 71.7% against smallpox; 83.2% from 69.1% against poliomyelitis; but only 25,7% from 21.5% against measles. The status of family planing was 36.8% among 155 women of possible conception at the time of the basic research. And, at the end of this study, the number of women utilizing one of the methods of contraception for family planning were increased upto 52.9% among the same number. The most frequently utilized method was 34.1% of oral pills followed by 30.5% of intrauterine device; but both of which had higher rate of interruption of use because of the complications, 14.3% and 16.0% respectively. The 10 pregnant women at the time of basic research experienced normal deliveries during the period of study and they had received pre and postnatal health care through this health center. The status of oral hygiene, pulmonary tuberculosis control, and parasitological examination were also reported as well as the cases with diseases seen among the population and vaccinations performed against other infectious diseases. The stress on discussion was placed upon the effectiveness of public health administration when it is undergone on the individual family unit to achieve the best results. However, the shortness of both personnel and material resources were considered to be the one of the major difficulties retarding the generalization of the idea obtained through this study based on family unit public health administration.

• 대한치과의사협회지
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• 제54권3호
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• pp.206-216
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• 2016

Objectives The aim of this study was to evaluate the antibacterial effect of xanthorrhizol (XTZ) on E. faecalis, compared with 2% chlorhexidine (CHX). Materials and Methods Normal physiological state (NS), starvation state (SS), and alkalization state (AS) of E. faecalis were used. A solution containing 1% XTZ in 30% ethanol, 1% dimethyl sulfoxide (DMSO), and 100 mg/ml sodium methyl cocoyl taurate was used and is referred to as Xan in this study. To determine the minimal bactericidal concentration (MBC) of Xan and CHX, $500{\mu}l$ of E. faecalis (NS and two stress states) was added to a microtube containing $500{\mu}l$ of serial 2-fold dilutions of 1% Xan and 2% CHX (1:2-1:128). The MBC of each antimicrobial was determined by the plate count method. Results The antibacterial effect of Xan was more effective on E. faecalis in AS than in the other states (NS, SS) at 0.125% Xan and 0.03325% Xan (P<0.05). In contrast, the antibacterial effect of CHX was more effective against E. faecalis in SS than the other states (NS, AS) at 0.0625% CHX (P<0.05). In SS, the antibacterial effect of CHX was more effective than that of Xan at 0.125% and 0.0625% (P<0.05). However, in AS, the antibacterial effect of Xan was more effective than that of CHX at 0.0625% and 0.03325% (P<0.05). Conclusions In endodontic retreatment cases in which it is important to effectively remove E. faecalis from the infected root canal, Xan may be more suitable when combined with NaOCl than CHX.

• 치위생과학회지
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• 제20권2호
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• pp.107-117
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• 2020

Background: In this study, we tried to comprehensively explore clinical dental hygienist's experience of a prevention-based incremental oral health care program, which was pilot-operated by dental clinics, define prevention-based incremental oral health care as experienced in the field, and identify factors to be considered. Methods: This study conducted a focus group interview with five dental hygienists who participated in an ongoing oral management pilot project in 2016. The interview was conducted by a researcher, and the co-research team attended as progress assistants and recorded characteristics of the participants, main dictations, and non-verbal characteristics. All interviews were recorded and underwent thematic analysis to examine the questions of the study as the main axis. Results: As a result of the study, 65 meaningful statements were extracted by code, integrated into 24 sub-categories, and structured into 11 categories. Finally, four keywords were drawn: characteristics, facilitating factors, conflicting factors, and improvement measures for prevention-based incremental oral health care. Regarding prevention-based incremental oral health care in dental clinics, dental hygienists were highly aware of the physical and mental burdens of personalized treatment and education for each individual. They were responsible for the patient and for facilitating changes in the behavior of the client, leading to professional satisfaction. The dental team's cooperation and supportive attitude were found essential to continue oral health care in the dental clinic. Conclusion: Through dental team-based treatment philosophy sharing and collaboration, it is possible to provide prevention-based incremental oral health care in dental clinics. In future, it is necessary to develop a system for establishing a sustainable preventative management system for public health promotion.

• 치위생과학회지
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• 제10권6호
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• pp.481-487
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• 2010

본 연구는 경기북부지역 일대 군병원에 내원하는 입원환자와 외래환자 200명을 대상으로 하였고, 배부된 총 200부의 설문지 중 182부가 회수되어 91%의 회수율을 보였다. 그 중 응답이 불성실하여 자료처리가 불가능한 설문지 2부를 제외한 180부를 분석 자료로 사용하였고, 조사기간은 2008년 12월 1일부터 12월 20일까지 20일간 자기기입식 설문을 통해 이루어졌다. 연구결과는 다음과 같다. 1. 치아우식증, 치주질환, 구강보건관리 인식 및 지식수준을 조사한 결과, 치아우식증 예방에 대한 인식에서는 25점 만점에 18.733점으로 나타났고, 치주질환 예방에 대한 인식은 25점 만점에 19.272점으로 나타났으며, 구강보건관리 지식은 30점 만점에 25.305점으로 나타났다. 2. 구강보건관리에 관한 관심 교육에 따른 주관적 구강건강상태를 살펴보면, 관심정도와 주관적 구강건강상태와의 관계는 통계적 (P=0.0083)으로 유의한 것으로 나타났다. 3. 구강보건관리 인식 지식정도에 따른 주관적 구강건강상태와의 관계를 살펴보면, 치아우식증 예방에 대한 인식에서는, 25점 만점에 건강하지 않다 평균 19.188점, 보통이다 평균 18.210점, 건강하다 평균 18.971점으로 나타나 치아우식증 예방효과의 인식과 주관적 구강건강상태와의 관계는 통계적으로 유의하지 않는 것으로 나타났고, 치주질환예방에 대한 인식에서는, 25점 만점에 건강하지 않다 결론적으로, 구강보건관리에 관한 관심과 교육에 대한 관심이 높을수록 개인의 구강보건관리에 대한 행위와 건강상태가 좋음을 알 수 있었다. 따라서, 구강보건관리는 개인의 건강을 유지하기 위해서 반드시 실천해야 할 뿐만 아니라 국가 및 군(軍)에서의 최상의 전투력을 유지하고 발휘 할 수 있도록 하기 위해서는 장병들의 건강한 구강상태를 유지할 수 있도록 구강보건 사업이 주요사업으로 추진되어야 할 것이다.