• Journal of dental hygiene science
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• v.12 no.3
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• pp.245-252
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• 2012

This study aimed to evaluate the correlation between metabolic syndrome and periodontal in the adult Korean population on the basis of the 2009 Korea National Health and Nutrition Examination Survey(NHANES) data. Of 19-year-old or older adult patients suffering from their disease diagnosed as metabolic syndrome, 1,315 subjects whose community periodontal index(CPI) information was fully available were finally analyzed, and the following conclusions were drawn. 1. It was found that of sociodemographic characteristics, age and educational background correlated to the prevalence of periodontal diseases. With increasing age and poorer educational background, the rates of periodontal diseases increased(p<0.001). 2. It was revealed that of general health behaviors, smoking, alcohol drinking and BMI correlated with the prevalence of periodontal diseases. Higher rates of periodontal diseases were shown in the group of patients who were current smokers(p<0.05), had the higher frequency of drinking per week(p<0.001), and had higher BMI(p<0.005). 3. It was ascertained that of oral health behaviors, the history of oral health examination in the previous year, the use of proxabrush or dental floss, and perceived(i.e., subjective) oral health status correlated to the prevalence of periodontal diseases. The higher rates of periodontal diseases were seen in those who had no history of oral health examination in the previous year(p<0.001), had used neither proxabrush nor dental floss(p<0.05), and perceived that their own oral health was poor(p<0.001).

• Journal of the Korea Convergence Society
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• v.8 no.9
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• pp.127-133
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• 2017

The purpose of this study is to confirm the effect of natural tooth whitening using fruits that can be easily accessed in real life by increasing interest in tooth whitening in modern society. Twenty premolar teeth were divided into five groups (n=4). Strawberry (A), lemon (B), banana skin (C), baking soda (D) and whitening toothpaste (E) were treated with a toothbrush on the enamel surface. The tooth surface was treated with a toothbrush at the same time for 3 minutes for breakfast, lunch, and dinner, then washed with sterile distilled water, and stored in saline solution. This procedure was repeated for 4 weeks, and the color change of teeth was observed at intervals of one week. After 4 weeks, there was a significant difference in tooth color change after 3 weeks(p<0.05). Among them, strawberry and lemon showed higer effects to whitening toothpaste. It is believed that strawberries and lemons have a higher whitening effect than whitening toothpaste. Whitening toothpaste may be replaced with a safe natural whitening effect using strawberries and lemons instead of chemical ingredients that may be harmful to human body.

• The Journal of the Korean dental association
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• v.48 no.5
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• pp.371-378
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• 2010

The objective of this study was to compare the effectiveness of essential oil mouthrinse and interdental brush for oral hygiene in orthodontic patient. 90 patients, with fixed orthodontic appliances, were divided into 3 groups(Group 1: patients who had only used toothbrush, group 2: toothbrush + essential oil mouthrinse, group 3: toothbrush + interdental brush). Then, plaque index(PI) and gingival index(GI) were evaluated at before(T0), 3 weeks after(Tl) and 6 weeks after(T2) the experiment. The present study revealed the following conclusions: (1) There was statistically significant decrease in PI and GI of groups 2 and 3 comparing to those of group 1 during 6 weeks.(p<0.05) (2) There was no significant difference in the level of decrease in PI and GI between group 2 and group 3.(p<0.05) The present study thus implied that use of mechanical or chemical aid such as interdental brush and mouth rinse in addition to toothbrushing may help maintaining oral hygiene in patients undergoing fixed orthodontic treatment for prolonged duration.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.1256-1257
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• 2011

유도급전용 변압기(Inductive Power Transformer, IPT)는 비접촉 전력전송장치이며, 그 응용범위는 전동칫솔용 충전기, 핸드폰용 충전기와 같은 소용량 시스템뿐만 아니라, 전기자동차, 산업용 이송장치, 철도 시스템과 같은 대용량 시스템에까지 확대되고 있다. 철도시스템과 같은 교통시스템에 적용되는 IPT 시스템의 경우, 소용량 시스템과 달리 큰 공극을 가지기 때문에 높은 에너지 전달 효율을 얻기 위하여 IPT 모듈의 주의 깊은 설계가 요구되기 때문에 본 논문에서는 철도차량에 적용하기 위한 U-U 타입 IPT와 U-I 타입 IPT의 등가회로 파라미터와 커플링 계수에 대한 특성을 해석적 방법을 통하여 분석하고, 실제 20[kW] 급 IPT 시제품 모듈의 실험을 통하여 등가회로 파라미터 검증 및 IPT 모듈의 효율 계측을 수행하였다.

• Proceedings of the KAIS Fall Conference
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• 2009.05a
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• pp.128-130
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• 2009

본 논문은 임신의 시기가 내분비계의 변화로 인한 프로게스테론의 과잉분비가 발생하여 혈관의 투과성을 항진시켜 구강내의 잇몸 부종, 잇몸 출혈 등을 유발하고, 입덧으로 인한 메쓰꺼움, 몸의 무거움과 나른함, 음식 기호변화, 간식횟수의 증가 등을 겪게 되어 신체뿐 아니라 구강 환경 또한 변화하게 된다는 여러 관련 자료들을 근거로 임산부의 구강 건강상태와 구강보건인식을 파악하고자 2008년 12월 15일 ~ 2009년 1월 30일까지 180명의 임산부를 대상으로 구강건강상태와 구강보건인식에 대한 조사를 실시하였다. 설문의 결과 임산부의 생활수준, 분만경험, 임신시기에 따라 생활수준이 좋을수록, 분만경험이 없는 경우에서, 4-6개월 임신시기 시 구강건강상태에 대하여 유의미한 차이가 나타났다. 건강한 구강건강을 위한 우선 행위인 잇솔질에서의 교육 수준별, 생활 수준별, 임신 시기별로 식사 후 3회 정도의 잇솔질의 횟수가 유의미한 차이의 결과를 나타내었으며, 잇솔질시 오심과 구토로 잇솔질이 어려운 임산부들의 구강상태 청결을 위해 사용되어지는 보조구강위생용품으로는 치실, 구강 양치액, 혀 클리너, 치간 칫솔이 사용된다는 결과가 나타났다. 이러한 결과의 자료들은 임신 시기 중 가장 고민된다고 답하여준 구강건강 부분에서의 입덧으로 인한 잇솔질의 어려움, 잇몸출혈, 충치, 치석제거, 구강질환 치료의 적정시기, 구취 등의 부분을 임산부 대상의 구강보건교육 시 기존의 자료에 조금 더 중점적으로 다루어져야 하는 부분임을 확인할 수 있었다.

• Journal of Korean society of Dental Hygiene
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• v.22 no.3
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• pp.171-180
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• 2022

Objectives: The study aimed to investigate the perception and usage of oral hygiene products among patients who visited dental hospitals or clinics. Methods: A questionnaire was provided to a total of 187 patients who visited dental hospitals or clinics in Gyeongnam area. The answers were then statistically analyzed. Results: Interest in oral hygiene (r=0.194, p<0.01) and the subjective perception of oral health (r=0.232, p<0.01) had a significant positive correlation with oral hygiene device awareness. Moreover, this study showed that females (β=-0.185, p<0.05) and those with greater interest in oral health (β=0.156, p<0.05) were more familiar with and used toothbrushes regularly. Finally, this study showed that females (β=-0.459, p<0.001) and those who did not suffer from halitosis (β=-0.215, p<0.01) were more familiar with and used oral hygiene devices regularly. Conclusions: To ensure the proper recognition and use of oral hygiene devices, professional oral health education is necessary. Furthermore, various forms of media should be used to disseminate information on oral hygiene devices.

• Journal of Periodontal and Implant Science
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• v.29 no.1
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• pp.131-139
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• 1999

The present study investigate the effect of newly designed toothbrush(Chess tip : experimental group), conventional toothbrush(control group) on plaque control, gingivitis, and periodontitis. The results of 4weeks post-research by clinical comparison between the two groups are as follows. 1. In analysis of plaque index between groups there was Significant difference in the experimental group at 2,4 week. 2. In analysis of gingival index between groups there was significant difference in the experimental group at 1,2,4 week. 3. Both experimental group and control group showed decrease in periodontal pocket depth after 4week, but there was significant difference in the experimental group at 4 week. 4. Both experimental group and control group showed decrease in bleeding on probing after 4week, but there was significant difference in the experimental group at 4 week. These results indicate that newly designed toothbrush has beneficial effects as additional aid of mechanical treatment at the point of periodontal pocket, plaque control, and bleeding on probing.

• Journal of Periodontal and Implant Science
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• v.38 no.4
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• pp.699-708
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• 2008

Purpose: The aim of this study was to investigate the effect of tongue cleaner-equipped manual toothbrush on tooth cleanness, tongue cleanness and malodor index. Materials and methods: 504 subjects were included in this study. At 1st visit, basic information such as age, sex, smoking amount and alcohol consumption was recorded. Self assessment by individual subjects was performed regarding satisfaction to old toothbrush and toothbrushing habit. Tooth cleanness, tongue cleanness and malodor index was assessed by professional researcher. Tongue cleaner-equipped manual toothbrush was given to each subject with proper toothbrushing instruction. After 1 month passed, self assessment and researcher assessment regarding the same index were performed and analyzed statistically by chi-square test. Results: At 1st visit subjects seem to ignore tongue cleansing and showed poor tooth cleanness index, tongue cleanness index and malodor index, however the same subjects were motivated to clean their tongue and teeth and presented statistically improved distribution pattern in tooth cleanness index, tongue cleanness index and malodor index after using tongue cleaner-equipped manual toothbrush(p<0.01). Satisfaction to tongue cleaner-equipped manual toothbrush was 98%. Conclusion: Tongue cleaner-equipped manual toothbrush would be an effective tool for maintaining good oral hygiene through improving tooth and tongue cleanness and preventing malodor formation.

• Journal of the Korea Convergence Society
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• v.11 no.8
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• pp.89-97
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• 2020

This study aimed to identify the association between each stage of Community periodontal index of treatment needs (CPITN) and oral health behaviors. Multivariate logistic regression analysis was performed on the data obtained from 11,002 adults aged between 19 and 79 years, using data from the 7th Korea National Health and Nutrition Examination Survey. When interdental care products such as floss or interdental brush were used, the risk of CPITN1 to CPITN3 and periodontitis was significantly reduced. Brushing more than 3 times a day significantly reduced the risk for CPITN1 and CPITN2, and dental check-ups reduced the risk for CPITN1, CPITN2, and periodontitis. There were differences in related factors depending on the stage of CPITN and periodontitis. Therefore, it is essential to include training on the use of interdental care products in oral health education. In addition, it will be helpful educate subjects on select oral health behaviors based on their periodontal status.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.5
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• pp.2244-2250
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• 2013

The purpose of this study was to examine the frequency of daily toothbrushing among Korean adolescents. The Korea Youth Risk Behavior Web-based Survey data were analysed. subject included 75,238 in 2008, 75,066 in 2009 and 73,238 in 2010, which included a nationally representative sample of middle and high school students. The frequency of daily toothbrushing was analysed according to socioeconomic status (gender, age, residential areas, type of school, parents' education and occupation). All survey data collected was processed using SPSS ver 19.0 for data analyses such as frequency analysis, t-test and Chi-square. The mean frequency of daily toothbrushing for 2008 was 3.92, 2009 was 3.96 and 2010 was 3.99. The appearance of toothbrushing after having lunch at school was indicated to be 34.5% in 2008, 38.0% in 2009 and 40.8% in 2010. This study has shown that need to systematic oral health promotion programmes for adolescent in Korea.