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대한예방치과·구강보건학회> 대한구강보건학회지> 민간의치세정제재들의 항균력, 정균력 및 의치상 마모력에 대한 평가

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민간의치세정제재들의 항균력, 정균력 및 의치상 마모력에 대한 평가

The effect of different denture cleansing agents on the abrasion test of denture base material and survival rate of Candida albicans and Streptococcus mutans민간의치세정제재들의 항균력, 정균력 및 의치상 마모력에 대한 평가

이재영 ( Jae Young Lee ) , 김영권 ( Young Kwon Kim ) , 정윤숙 ( Yun Sook Jeong ) , 강경희 ( Kyung Hee Kang ) , 황수정 ( Soo Jeong Hwang )
  • : 대한예방치과·구강보건학회
  • : 대한구강보건학회지 34권1호
  • : 연속간행물
  • : 2010년 03월
  • : 18-27(10pages)
대한구강보건학회지

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Objectives. Proper cleansing of dentures is important for oral mucosal health in the elderly. We evaluated denture cleansers using in vitro antimicrobial tests with Candida albicans and Streptococcus mutans, as well as a denture base abrasion test. Methods. 1) We administered a questionnaire about denture cleansers to 632 elderly people in Daejeon. 2) The dentifrices, kitchen detergents were selected as artificial denture cleansers, and baking soda and vinegar as natural denture cleansers. Antimicrobial tests were performed by spectrophotometry using a McFarland nephelometer and total plate counts after incubation with each material. 3) Denture base resin discs (13×1 mm) were prepared for abrasion tests using a V8 Crossbrushing machine. Results. 1) Most elderly people used the dentifrices as denture cleansers was 65.8%. 2) After Vinegar treatment was less than 10% effective in bacteriostatic and bacteriocidal tests of S. mutans and antifungal effects of C. albicans. The antimicrobial effect of baking soda and dentifrices depended on the dilution ratio. Kitchen detergents showed an inverse relationship between dilution ratio and antimicrobial effect. 3) The dentifrices caused the most abrasion, but the effect was not significant. Conclusions. Vinegar and baking soda could be useful denture cleansers, but must be tested on other denture materials.

UCI(KEPA)

I410-ECN-0102-2012-510-001063876

간행물정보

  • : 의약학분야  > 기초치의학
  • : KCI등재
  • :
  • : 계간
  • : 1225-388x
  • : 2093-7784
  • : 학술지
  • : 연속간행물
  • : 1967-2022
  • : 1723


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46권3호(2022년 09월) 수록논문
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1팬데믹의 끝자락에서...

저자 : 조자원 ( Ja-won Cho )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 46권 3호 발행 연도 : 2022 페이지 : pp. 107-108 (2 pages)

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Objectives: The purpose of this study was to analyze the inequality trends in self-rated poor oral health, chewing discomfort, and speaking discomfort of adults according to the household income level using data from the Korea National Health and Nutrition Examination Survey (KNHANES).
Methods: Data from 2007-2020 were downloaded from the KNHANES website and were integrated by year within each wave. The participants were 19 years old or over who responded to the oral health items of the questionnaire survey. Prevalence of self-rated poor oral health, chewing discomfort, and speaking discomfort were estimated according to the guidebook for data users. The age standardized rates were computed using the 2005 standard population. Absolute difference (AD) between the lowest and highest household income levels and the prevalence ratio (PR) as relative ratio were calculated.
Results: The prevalence of self-rated poor oral health decreased by 14.0%, but the AD increased by 3.0%, and the PR was enlarged in the lower household income level group. The prevalence of chewing discomfort and speaking discomfort decreased by 12.5% and 4.8%, respectively, but the AD of the two indicators persisted, and the PR was enlarged in the lower household income level group.
Conclusions: Self-rated oral health and oral health-related quality of life have improved overall over the past decade in Korean adults, but the severity remains, and the problem of equity has persisted or aggravated. Therefore, it is necessary to find an upstream approach to resolve the inequality in oral health in Korea.

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3북한이탈주민의 구강보건서비스 경험이 구강건강관리행태에 미치는 영향

저자 : 김시우 ( Siwoo Kim ) , 이유리 ( Yuri Lee ) , 권재성 ( Jae-sung Kwon ) , 김사란 ( Saran Kim ) , 김정태 ( Jungtae Kim ) , 김현주 ( Steacey Kim ) , 이재훈 ( Jae Hoon Lee )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 46권 3호 발행 연도 : 2022 페이지 : pp. 115-120 (6 pages)

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Objectives: The study aims to investigate the influence of oral health service experience on oral health behavior of North Korean defectors and contribute to the development and implementation of oral health education among this population.
Methods: A self-reporting questionnaire survey was conducted with 161 North Korean defectors in Hanawon from April, 2015 to September, 2015. Of these participants, 50 were excluded owing to insufficient questionnaire data. The questionnaire was developed based on the WHO's Oral Health Survey (OHS) and the Korean National Oral Health Survey (KNOHS). Three categories were included in the questionnaire: demographic characteristics, dental service experience in North Korea, and oral health behavior.
Results: Males had higher levels of perceived oral health compared to females, with differences according to the region they are from in North Korea. Those who received tooth brushing instruction in North Korea showed a greater tendency to practice tooth brushing after lunch, while those who received oral health examination showed a higher level of use of oral rinses. Further, the experience of dental scaling significantly influenced both practicing tooth brushing after lunch and use of oral rinses.
Conclusions: This study confirmed that the previous experience of oral health service in North Korea positively influenced current oral health behavior of North Korean defectors. Continued oral health education can enhance their oral health behavior, oral health, and quality of life. Thus, it is suggested that policies and oral health education should be developed according to their characteristics and oral health service experience in North Korea.

KCI등재

4외국인 유학생들의 치과진료서비스 이용장벽

저자 : 클레망스제이마나 ( Nzeyimana Clemence ) , 최연희 ( Youn-hee Choi ) , 송근배 ( Keun-bae Song )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 46권 3호 발행 연도 : 2022 페이지 : pp. 121-128 (8 pages)

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Objectives: International students attending Korean universities are sometimes not able to receive timely dental treatment, despite the need for dental treatment owing to various oral health problems. The purpose of the study was to identify various barriers to the regular use of dental services by international students in a metropolitan area of Korea.
Methods: Questionnaires, both online and offline, were sent to 500 foreign university students enrolled in five selected universities located in Daegu city and nearby areas, with a total of 19 valid responses received. The questionnaire consisted of 41 items, including demographic characteristics, oral hygiene-related behavior, barriers to dental services access, and Oral Health Impact Profile (OHIP-14). The internal validity of each factor was 0.8 or higher (Cronbach Alpha α=0.86), confirming the reliability. All data were analyzed using IBM SPSS for Windows ver. 25.0 was used for analysis, and the statistical significance level was set to 0.05%.
Results: Among the international student participants, 69.5% did not visit the dentist during their stay in Korea, and those with low prevalence of gum bleeding and plaque were more likely to visit the dentist regularly. Financial problems and lack of knowledge and interest in oral health were significantly associated with the use of dental services. The revised model's explanatory power was 20.3%.
Conclusions: In order to improve the oral and general health of international students residing in Korea, university level oral health education programs, oral health care centers, and governmental support programs should be implemented.

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5대황 추출물의 streptococci 증식 및 바이오필름 형성 억제 효과

저자 : 김시영 ( Si Yeong Kim ) , 송유리 ( Yuri Song ) , 이현아 ( Hyun Ah Lee ) , 나희삼 ( Hee Sam Na ) , 정진 ( Jin Chung )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 46권 3호 발행 연도 : 2022 페이지 : pp. 129-134 (6 pages)

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Objectives: Oral streptococci play a significant role in the development of dental caries. Among them, Streptococcus mutans and Streptococcus sobrinus are the principal causative agents of dental caries. Rheum palmatum is a flowering plant of the family Polygonaceae with several known medicinal properties. However, its effects on oral streptococci have yet to be established. Therefore, we investigated the effects of Rheum palmatum for its potential use as an anticaries agent in inhibiting the growth of streptococci and preventing biofilm formation.
Methods: Rheum palmatum extract was diluted with sterile distilled water to obtain various extract concentrations. Several strains of oral bacteria, including S. mutans and S. sobrinus, were treated with the varying concentrations. The effects of the extract on bacterial growth was examined using the viable cell count method. Glucan synthesis was measured using a spectrophotometer at 650 nm optical density. Crystal violet staining was also carried out to observe the effect of the extract on biofilm formation.
Results: The growth of S. mutans and S. sobrinus was significantly inhibited by the Rheum palmatum solution at concentrations of 0.3% or more compared to the control group. The viable cell count results indicated that the number of bacterial colonies decreased 1.2-fold and 1.7-fold at concentrations of 1.25% and 2.5%, respectively, compared to the control group. Biofilm formation by S. mutans and S. sobrinus was suppressed more than 20-fold compared to the control group at extract concentrations of 1.25% or more.
Conclusions: The extract inhibited the growth of caries-causing bacteria, namely S. mutans and S. sobrinus. Furthermore, the extract inhibited the synthesis of glucan and biofilm formation by S. mutans and S. sobrinus. Therefore, this study suggests that the extract is a potential candidate as a therapeutic agent for controlling dental caries.

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6노인 임플란트 급여화 전후의 치아발거빈도

저자 : 최진선 ( Jin-sun Choi ) , 박덕영 ( Deok-young Park )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 46권 3호 발행 연도 : 2022 페이지 : pp. 135-141 (7 pages)

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Objectives: This study aims to determine whether National Health Insurance dental implant coverage increased instances of tooth extraction in older adults.
Methods: Three periods were identified to analyze dental implant uptake in older adults-pre-coverage, intermediate-coverage, and post-coverage. Data for analysis were obtained from two sources. Frequency of tooth extraction and dental treatment data were obtained from the Healthcare Bigdata Hub. Data on the dental health status of older adults were obtained from National Health and Nutrition Examination Survey.
Results: In 2019, the National Health Insurance supplied 10.2 dental implants per 100 older adults in Korea. The frequency of tooth extractions increased slightly after dental implant coverage for older adults, but statistically, the number of missing teeth was significantly reduced. Dental caries indices in older adults were also exacerbated during this period. The DMF rate and DMFT index for older adults increased significantly. However, the illness rate due to dental caries was also reduced. There was no significant difference in the prevalence of periodontal diseases. Based on the National health data and the frequency of related services, the slight increase in tooth extractions may be due to increased utilization of dental services.
Conclusions: The authors could not find clear evidence that dental implant coverage increased the frequency of tooth extraction in older adults.

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7치위생과 학생의 성인애착 유형과 사회적 지지가 대학생활 적응에 미치는 영향

저자 : 최미현 ( Mihyun Choi ) , 민희홍 ( Heehong Min )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 46권 3호 발행 연도 : 2022 페이지 : pp. 142-146 (5 pages)

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Objectives: This study aims to seek positive measures for students in a dental hygiene program to adapt well to college life by analyzing the effects of their adult attachment styles and social support on their adaptation to college life.
Methods: Data were collected from June 1 to August 30, 2021. It was conducted with a self administered questionnaire. In consideration of the dropout rate, the study recruited 200 participants. Data analysis was performed using IBM SPSS Statistics for Windows, Version 22.0.
Results: Regarding correlations with adaptation to college life, the analysis revealed positive correlations for adult attachment styles and social support. Significant correlations were seen in the following factors affecting adaptation to college life: satisfaction with college life_dummy 2, satisfaction with major_dummy 1, and adult attachment styles. The factor with the strongest effect (35.7%) on adaptation to college life was adult attachment styles.
Conclusions: Factors affecting college life adaptation were found to affect college life adaptation as college life satisfaction, major satisfaction, and adult attachment type increased. System support is needed to develop a counseling program tailored to college life by adult attachment type to increase college life satisfaction and major satisfaction.

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Objectives: This study aimed to analyze the trends of the gap in toothbrushing and dental care according to the household income level of all people using the Korea National Health and Nutrition Examination Survey (the KNHANES) data.
Methods: Data from 2007-2020 were downloaded from the KNHANES website. Data integration and analysis were conducted for each wave. The prevalence of toothbrushing less than twice a day, toothbrushing after lunch, unmet dental care needs, regular dental check-ups, and preventive dental services use were each estimated based on the data users' guidebook. The absolute difference (AD) between the lowest and highest income level and the prevalence ratio (PR) were calculated.
Results: The prevalence of toothbrushing less than twice a day and toothbrushing after lunch improved by 5.3% and 13.6%, respectively. However, AD decreased by 4.5% and 2.4%, respectively. The step-wise social gradient in the PR of these indicators was maintained. The prevalence of unmet dental care needs improved substantially from 38.7% in Wave 4 to 21.0% in Wave 7. However, AD and PR were the poorest in Wave 7. The prevalence of regular dental check-ups and preventive dental service use improved steadily by Wave 8 to 45.0% and 37.0%, respectively. However, AD in Wave 8 was ―16.8% for the prevalence of regular dental check-ups and ―12.2% for preventive dental service use. The social gradient in the PR was maintained.
Conclusions: While toothbrushing and dental care use have improved over the past decade, disparity by income level has not been noticeably reduced. This study's results also reflected the achievements and limitations of the Korean government's policies and projects for toothbrushing and dental hygiene habits.

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9Streptococcus mutans 세균막 형성과 상아질 표면에 대한 silver fluoride 도포의 효과

저자 : 김해니 ( Haeni Kim )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 46권 3호 발행 연도 : 2022 페이지 : pp. 154-157 (4 pages)

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Objectives: This study aimed to evaluate the effect of silver fluoride (AgF) on the formation of cariogenic biofilm and surface of dentin in vitro.
Methods: Bovine dentin specimens with artificial caries were prepared and divided into 3 groups: untreated control, AgF-treated, and silver diamine fluoride (SDF)-treated. Streptococcus mutans cultured in brain heart infusion (BHI) broth was used to induce biofilm. The specimens were placed in a well plate containing BHI broth and S. mutans bacterial suspension, and incubated under aerobic conditions supplemented with 5% CO2 at 37℃ for 24 hours. After the incubation, the specimens were washed twice with phosphate-buffered saline (PBS) and sonicated to obtain a bacterial suspension. The diluted bacterial suspension was then smeared on a blood agar plate and cultured for 72 hours at 5% CO2 and 37℃. Following this, the number of bacterial colony forming units (CFUs) was counted and converted into logarithms for analysis. Additional specimens of each group were observed by scanning electron microscope (SEM). Energy dispersive X-ray spectroscopy (EDS) was also performed for component analysis of the dentin surface.
Results: The number of S. mutans bacterial CFUs was significantly lower in the AgF and SDF groups than in the untreated control group. It was shown that SDF inhibited biofilm formation more than AgF; however, there was no statistical significance. The SEM images showed particles formed after AgF and SDF application were deposited on the dentin. It is confirmed through EDS analysis that the particles contained silver and fluoride ions.
Conclusions: This study confirmed that AgF application effectively inhibited the formation of the early S. mutans biofilm. It is suggested that AgF solution may be effectively used in the clinical setting to prevent caries without occurrence of gingival irritation or bad odors.

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1Streptococcus mutans의 탄수화물 분해에 미치는 자일리톨의 효과

저자 : 김지혜 ( Ji Hye Kim ) , 이영은 ( Young Eun Lee ) , 정선영 ( Sun Young Chung ) , 안상헌 ( Sang Hun Ahn ) , 최연희 ( Youn Hee Choi ) , 송근배 ( Keun Bae Song )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 34권 1호 발행 연도 : 2010 페이지 : pp. 1-8 (8 pages)

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Objectives. Xylitol prevents caries by inhibiting the growth and virulence of Streptococcus mutans. However, most reports only examined the presence of specific carbohydrate such as glucose or sucrose. We therefore tested the effect of xylitol on S. mutans in several sugars. Methods. Basal culture medium for S. mutans KCTC3065 was TYE medium containing 0.5% glucose (G-TYE). The strain was cultured in 10 mL basal culture medium adding 0.5% carbohydrates (sucrose, fructose, maltose) with or without 1% xylitol at 37˚C under 10% CO2 for 24 h. Cells were collected for analysis growth, acid production, synthesis of extracellular polysaccharides, and gene expression. Results. Xylitol reduced the growth rate of S. mutans in the presence of G-TYE and maltose (p<0.05), as well as the final growth of S. mutans in the presence of G-TYE, sucrose, and maltose (p<0.05). Xylitol inhibited acid production in the presence of G-TYE and maltose (p<0.05), but not in sucrose and fructose (p>0.05). Xylitol reduced the synthesis of extracellular polysaccharides and the expression of gtfB and gtfD in all carbohydrates. Conclusions. Xylitol inhibited growth and acid production of S. mutans in the presence of G-TYE and maltose, and decreased extracellular polysarccharides synthesis in all carbohydrates.

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2새로운 색지표를 이용한 우식활성검사법 개발

저자 : 강시묵 ( Si Mook Kang ) , 정회인 ( Hoi In Jung ) , 정승화 ( Seung Hwa Jeong ) , 권호근 ( Ho Keun Kwon ) , 김백일 ( Baek Il Kim )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 34권 1호 발행 연도 : 2010 페이지 : pp. 9-17 (9 pages)

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Objectives. The aim of this study was to develop a new caries activity test based on colorimetric changes that could better reflect the amount of acid produced by oral bacteria as a broad spectrum of color than the previous test. The optimal candidates were combinations of pH indicators, and these were evaluated in pH buffering solutions and using dental plaque. Methods. Six pH indicators, Bromocresol-purple (BCP), Bromocresol-green (BCG), Methyl-red (MR), Methyl-orange (MO), Resazurin (R), and Naphthyl-red (NR), were selected to show different colors at various pH environments (range pH 3.0~7.0). BCP and BCG are pH indicators that are already used in the Cariostat(R), and they can show color changes from blue to yellow. This study tried to broaden the color change spectrum from blue to red to give a more distinct differentiation at various pHs. Four pH indicators (MR, MO, R and NR) were blended with BCP and BCG. Each combination of the three indicators was assessed in different pH buffer systems: pH 7.0, 6.0, 5.0, 4.0, and 3.0. The selected combinations of pH indicators were applied to human dental plaque from 11 subjects (mean age: 27) to confirm the reproducibility of the in vitro results. Results. According to the in vitro buffer system, the mixture of BCP, BCG and MR did not show any differences between pH 4.0 and pH 3.0. On the other hand, the mixtures of BCP-BCG-MO (ratio 2:1:1.5), BCP-BCG-R (1.5:1:0.5) and BCP-BCG-NR (2:1:1.5) showed distinguishable color changes from pH 7.0 to pH 3.0. Among the three candidates, the BCP-BCG-NR mixture showed the best color differences in the buffer solution and the human dental plaque cultivated solutions at various pHs. Conclusions. This study evaluated a new colorimetric caries activity test that used a combination of several pH indicators. The new system can easily detect various pH environments from organic acid fermentation by using a wider range of colors (blue-dark green-green-orange-red).

KCI등재

3민간의치세정제재들의 항균력, 정균력 및 의치상 마모력에 대한 평가

저자 : 이재영 ( Jae Young Lee ) , 김영권 ( Young Kwon Kim ) , 정윤숙 ( Yun Sook Jeong ) , 강경희 ( Kyung Hee Kang ) , 황수정 ( Soo Jeong Hwang )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 34권 1호 발행 연도 : 2010 페이지 : pp. 18-27 (10 pages)

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Objectives. Proper cleansing of dentures is important for oral mucosal health in the elderly. We evaluated denture cleansers using in vitro antimicrobial tests with Candida albicans and Streptococcus mutans, as well as a denture base abrasion test. Methods. 1) We administered a questionnaire about denture cleansers to 632 elderly people in Daejeon. 2) The dentifrices, kitchen detergents were selected as artificial denture cleansers, and baking soda and vinegar as natural denture cleansers. Antimicrobial tests were performed by spectrophotometry using a McFarland nephelometer and total plate counts after incubation with each material. 3) Denture base resin discs (13×1 mm) were prepared for abrasion tests using a V8 Crossbrushing machine. Results. 1) Most elderly people used the dentifrices as denture cleansers was 65.8%. 2) After Vinegar treatment was less than 10% effective in bacteriostatic and bacteriocidal tests of S. mutans and antifungal effects of C. albicans. The antimicrobial effect of baking soda and dentifrices depended on the dilution ratio. Kitchen detergents showed an inverse relationship between dilution ratio and antimicrobial effect. 3) The dentifrices caused the most abrasion, but the effect was not significant. Conclusions. Vinegar and baking soda could be useful denture cleansers, but must be tested on other denture materials.

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4손바닥 선인장 열매 추출물의 Streptococcus mutans에 대한 성장 억제 효과

저자 : 정은주 ( Eun Ju Jung ) , 홍석진 ( Suk Jin Hong ) , 최정이 ( Jeoung Iee Choi ) , 정성숙 ( Seong Soog Jeong ) , 오한나 ( Han Na Oh ) , 이혜진 ( Hye Jin Lee ) , 최충호 ( Choong Ho Choi )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 34권 1호 발행 연도 : 2010 페이지 : pp. 28-35 (8 pages)

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Objectives. Antimicrobial activity of extract of prickly pear (Opuntia ficus-indica var. saboten Makino; OFI) has been reported. This study examined effects of OFI extract on the growth of Streptococcus mutans. Methods. OFI was extracted by 85% methanol using an ultrasonic extraction method. The agar plate dilution method was used to count the CFU of viability of S. mutans KCTC 3065 that was determined by enumeration (colony forming units) in an agar dilution assay using no OFI (control), or 5, 20, and 50 mg/mL OFI following incubation for 0, 6, 12, and 24 h. The cytotoxicity of OFI extract (0, 5, 10, 20, 40, 50 mg/mL) was evaluated for human gingival fibroblasts by a formazan-based viability. Results. S. mutans growth was reduced by the OFI extract. The number of viable S. mutans was reduced significantly with increasing OFI concentration and incubation time (both p<0.001). The viable counts of S. mutans cultured with 20 and 50 mg/mL OFI decreased gradually but appreciably (>88.7%) by 6 h and no S. mutans remained when cultured with 50 mg/mL at 24 h. OFI concentrations of 40 and 50 mg/mL were cytotoxic to fibroblasts. Conclusions. OFI displays S. mutans inhibitory activity, and may be potential exploited as an oral hygiene agent for the prevention of dental caries.

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5일부 치위생과 학생에서 분리된 MRSA에 의한 교차감염

저자 : 강현경 ( Hyun Kyung Kang )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 34권 1호 발행 연도 : 2010 페이지 : pp. 36-40 (5 pages)

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Objectives. I tested S. aureus and MRSA isolates from the nasal cavity to determine cross infection rates using the mecA gene. Methods. I recruited 44 students from the Department of Dental Hygiene in Pusan. I measured the presence of the mecA gene from MRSA using polymerase chain reaction (PCR) according to Clinical and Laboratory Standards Institute (CLSI) standards with the disk diffusion method. Results. S. aureus was isolated from 10 people (23%), with methicillin-resistant Staphylococcus aureus in 2 people. These isolates also showed resistance to oxacillin and cefoxitin according to CLSI guidelines and contained the mecA gene. Conclusions. Cross infection in the hospital is important for students working at dental clinics in the future, and further information is needed about the risks of cross infection in this population.

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6구강보건교육학 교과를 위한 문제중심학습 패키지 개발 및 적용

저자 : 정영란 ( Young Ran Jung ) , 조덕주 ( Duk Joo Cho ) , 황윤숙 ( Yoon Sook Hwang ) , 장기완 ( Kee Wan Chang )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 34권 1호 발행 연도 : 2010 페이지 : pp. 41-49 (9 pages)

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Objectives. We developed PBL packages for oral health education and explored the course`s meaning of the packages for applying PBL to dental hygiene education. Methods. After PBL packages were developed and used, the components of the packages were compared to those of expository and practice centered instruction. Those are subject, main concept, an issue situation, degree of difficulty, achievement evaluation etc. Results. The PBL packages developed in this study provide problem situations that students might face in the clinic after graduation, and the packages stimulate independent problem-solving instead of relying on existing expository and practice-centered teaching practices that merely convey content. We assessed the application of problem-based learning, the preparation of educational plans, small grouping, tutor posting, and a variety of learning methods, and selected learners were interviewed to describe their PBL experiences. The significance of applying problem-based learning was also analyzed. The learners initially had difficulties with the PBL process, but became accustomed to it with experience, and this process learning did not disrupt the educational value. Conclusions. This study suggests ways to implement PBL in dental hygiene education.

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7수도권지역 성인에서 구취와 치주상태의 관련성

저자 : 한경순 ( Gyeong Soon Han ) , 김영남 ( Young Nam Kim ) , 양승경 ( Seung Kyeong Yang ) , 배광학 ( Kwang Hak Bae )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 34권 1호 발행 연도 : 2010 페이지 : pp. 50-57 (8 pages)

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Objectives. Oral malodor originates from VSC from amino acid metabolism by bacteria. Many patients with periodontitis have oral malodor and we therefore tested the relationship between oral malodor and periodontal status. Methods. A total of 138 adults were investigated using the O`Leary index, Loe & Silness index, formation of periodontal pocket depth, amount of loss for interproximal bone and missing tooth. And measuring the malodor by use of Oral Chroma volatile sulfur compounds. Data were analyzed with a t-test, one-way of variance and multiple regression using SPSS 12.0. Results. A higher O`Leary plaque index produced higher levels of dimethyl sulfide (p<0.01). Gingivitis, also tended to increase the concentration of hydrogen sulfide (p=0.095). Deeper periodontal pocket depth (<4 mm, 4~5 mm, ≥6 mm), also increased the concentration of hydrogen sulfide (p<0.05). Methyl mercaptan levels also tended to increase hydrogen sulfide levels (p=0.188). Higher interproximal bone loss (<50 mm, 50-80 mm, ≥80 mm) increase levels of methyl mercaptan (p=0.05), which was also higher in the missing tooth group than the non-missing tooth group (p<0.01). For total VSC concentration, a higher loss of interproximal bone increased the risk of halitosis (p<0.05). Conclusions. Blocking VSC generation in the periodontal pocket by periodontal therapy could vicious circle of periodontal disease and oral malodor.

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8노인장기요양보험제도에 대한 수도권지역 치과의료공급자의 객관적 및 주관적 인식

저자 : 김창욱 ( Chang Woog Kim ) , 황지민 ( Ji Min Hwang ) , 박용덕 ( Yong Duk Park )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 34권 1호 발행 연도 : 2010 페이지 : pp. 58-64 (7 pages)

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Objectives. The purpose of this study was to examine the awareness of dental hygienists, who were certified suppliers of visiting nursing service and long-term care, and of dentists, who were their supervisors, about the long-term care insurance system for senior citizens in an attempt to provide information on the role enlargement of the dental service suppliers involving dentists and dental hygienists and the improvement of the system, as the insurance was launched to keep up with the trend of the times. Methods. The subjects in this study were dentists and dental hygienists in the capital area (Seoul, Incheon and Gyeonggi Province), on whom a self-administered survey was conducted from January to April, 2009. The answer sheets from 207 dentists and 266 dental hygienists were gathered, and the collected data were analyzed with a SPSS 14.0 program. A frequency analysis, independent t-test and cross-tabs were carried out, and Pearson correlation coefficient was utilized to look for the correlation among the selected variables. Results. 41.5% of the dentists and 50.4% of the dental hygienists just heard about the long-term care insurance for senior citizens without having any further knowledge. Only 3.4% of the dentists and 4.5% of the dental hygienists know about it in detail. Among three items presented, the dentists (3.64) and dental hygienists (3.90) agreed the most to the necessity of the insurance, while they agreed the least to the additional payment of premium. Regarding the correlation between their subjective awareness of the insurance and relevant variables, the subjective awareness of the dentists had a statistically significant relationship to all the variables, and there was a statistically significant relationship between the awareness of the dental hygienists about the necessity of the insurance and their participation in it. Conclusions. The dental service suppliers weren`t well aware of the long-term care insurance system for senior citizens, but those whose family members were in need of long-term care were well cognizant of it in general. To improve their awareness and support for the system, more intensive P.R. efforts are required, and systematic educational programs should be prepared.

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9일부 스케일링 대상 근로자에서 잇솔질교육이 구강위생관리능력향상에 미치는 효과

저자 : 우희선 ( Hee Sun Woo ) , 김동기 ( Dong Kie Kim )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 34권 1호 발행 연도 : 2010 페이지 : pp. 65-71 (7 pages)

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Objectives. Self-analysis of oral health and the ability to manage oral hygiene in scaling patients is important for planning and managing oral hygiene. The PHP index allows the communication of self-controlled methods of oral hygiene. We evaluated the effect of scaling and tooth brushing instruction after an oral examination. Methods. This study was conducted on 100 patients who visited the C dental clinic in Seoul for a worker`s oral examination from January 2 to June 30, 2009. They were 25~29 years old and needed scaling treatment. An oral check-up and PHP index survey were taken 3 times; before tooth brushing instruction, 1 week after instruction, and 1 month after instruction. Results. It showed that gender and toothbrushing method had relevance to gingival bleeding and gingivitis. The PHP index decreased 1 week after instrucion but increased at 1 month. For the usage of oral hygiene aid goods, dental floss is the most used goods, the second is a mouth wash, and the third is a electric toothbrush. Conclusions. Tooth brushing instruction is important for oral hygiene. However, instruction needs to be performed repeatedly and systematically over time.

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10치과의료종사자의 진료기관 운영제도에 따른 직무만족도 -치과위생사, 간호조무사, 상담 및 코디네이터, 행정관리직 종사자 중심으로-

저자 : 천혜원 ( Hye Won Cheon ) , 이흥수 ( Heung Soo Lee )

발행기관 : 대한예방치과·구강보건학회 간행물 : 대한구강보건학회지 34권 1호 발행 연도 : 2010 페이지 : pp. 72-82 (11 pages)

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Objectives. We measured the factors affecting job satisfaction of dental auxiliaries to understand how to improve their working conditions. Methods. We evaluated satisfaction levels of dental auxiliaries in dental service institutes in Jeonju and Iksan, Jeollabuk-do, Korea. Results. Job satisfaction varied depending on socio-demographic features. Auxiliaries that were older, more educated, married, and high income earners showed higher satisfaction. Management components of the job also increased job satisfaction. The communication and compensation system showed the highest correlation, a 0.637 Pearson correlation coefficient. Operations improved when employees had manuals for the job; when they were given responsibilities; when they had more social gatherings on a regular basis; when they had incentive programs; and when they had opportunities for education or professional development. Satisfaction with management communication improved when complaints were resolved smoothly; when the opinions of dental auxiliaries were trusted by dentists; and with better communication between dentists and their auxiliaries. Conclusions. The compensation system was least satisfactory of the 6 constituent factors, indicating that increased wages and incentives are needed to promote job satisfaction. Improving other management factors such as communications can also increase the job satisfaction.

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