• The Journal of Korean Academy of Prosthodontics
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• v.61 no.3
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• pp.198-203
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• 2023

Purpose. The aim of this study was to evaluate the proximal contact with a dental floss compared to a celluloid strip and a metal strip in normal dental arch and investigate what the most effective method for measuring is. Materials and methods. The subjects of this study was consisted with 20 healthy adults (10 males and 10 females) who had normal dentition. A dentist with more than 5 years of clinical experience evaluated the proximal contacts using a dental floss method, a celluloid strip method, and a metal strip method. Statistical analysis were performed by the use of Mann-Whitney U test. A P-value < .05 was considered statistically significant in all analysis. In addition, in the evaluation of proximal contact using a dental floss, the measurement of proximal contact using a celluloid strip and a metal strip was compared. Results. 80 % of all proximal contact was proper. Proper proximal contact was observed at the posterior area compared to the anterior area (P < .05). And male had proper proximal contact at the anterior area, female had proper proximal contact at the posterior area (P < .05). The consistency analysis between the results of the celluloid strip and the metal strip experiment on the results obtained from the floss using the consistency scale Kappa index shows that using celluloid strip is more advantageous than using the metal strip. Conclusion. Only 80% of all proximal contact was proper. Using celluloid strips with various thickness for evaluating of proximal contact is considered to be helpful for accurate measuring of proximal contact.

• Journal of Korean society of Dental Hygiene
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• v.15 no.3
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• pp.399-410
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• 2015

Objectives: The purpose of the study is to investigate the influencing factors of metabolic syndrome on the periodontal disease in the Korean adults over 40 years old. Methods: The data were extracted from the Fifth National Health Nutrition Survey 2010. The subjects were adults over 40 years old. The periodontal diseases were examined by direct survey. The questionnaire consisted of the general characteristics of the subjects, oral health behavior, metabolic syndrome, and relation to periodontal diseases. CPI(community periodontal index) was measured. CPI indicates periodontal condition and classified into alveolar arch of the upper jaw and the lower jaw. A periodontal disease is defined as $CPI{\geq}3$(over 4 mm). The variables for metabolic diseases included hypertension, diabetes mellitus, dyslipidemia, and obesity measured as BMI. Results: Diabetes mellitus is closely related to periodontal diseases prevalence. Low level of HDL increase the periodontal diseases. Number of toothbrushung, use of dental floss and interdental toothbrush as for the number of toothbrushing, more than twice toothbrushing a day, and use of dental floss and interdental toothbrush reduced periodontal diseases. Conclusions: The risk factors of periodontal disease in Korean adults over 40 years old were sex, age, residence, monthly income, education level, smoking, diabetes and low HDL cholesterol.

• Journal of Technologic Dentistry
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• v.36 no.3
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• pp.197-203
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• 2014

Purpose: The purpose of this study was to evaluate oral health status according to use of oral care products in the adult population and determine methods for improving oral health status. Methods: The date of 'The fifth korean national health and nutrition examination survey 2011' was analyzed for this study. The questionnaire was measured regarding oral care products, Oral health status and socio-economic characteristics. For statistical analysis, the Statistical Package for Social Sciences version 19.0 for Windows was used. We determined frequencies, percentage and determining statistical significance using multiple regression analysis. Results: General characteristics and oral care products showed differences in DMFT associated with residence, gender, age, education, dental floss, etc(waterpic, hi-tech toothbrush, denture care products), in FS-T associated with residence, gender, age, income level, education, health insurance, dental floss, Interdental brush, etc, in T-health associated with residence, age, education, health insurance, Interdental brush, etc. Conclusion: In conclusion, in order to promote oral health status of the adult have to suitable selection and accurate usage of oral care products. Education and program in oral care products for the adult should be needed.

• Journal of Korean society of Dental Hygiene
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• v.10 no.6
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• pp.1107-1119
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• 2010

Objectivs : The purpose of this study is to provide basic data for the use of oral hygiene devices and to improve oral health care continuously by encouraging the use of oral hygiene devices. Methods : The survey was carried out by questionnaire research targeting 395 respondents in metropolitan area in June-August 2009. The collected data is analyzed by statistics program SPSS version 12.0. 1. General characteristics of subjects are analyzed by percentage and descriptive statistics. 2. Recognition about how to use oral hygiene devices, usage of oral hygiene devices, recognition of dental brush usage, Effect after using oral hygiene devices are analyzed by mean difference test(t, F verification). 3. Effect after using oral hygiene devices, relation of oral hygiene devices usage with subjective oral health status, oral hygiene devices usage and participation in education are analyzed by Correlation, Regression analysis. Results : 1. Investigation shows that most oral health devices are rarely used except toothbrush(4.57) in case of the use of oral hygiene devices. 2. In the case of awareness of oral hygiene devices usage, almost everyone knows how to use dental brushes(MEAN 4.16) the most. And the next ones are like these-tooth picks(MEAN 3.38), dental floss(MEAN 3.28), mouth rinse(MEAN 3.24). And they don't know how to use the other oral hygiene devices usage. 3. respondents who use dental floss(${\beta}$=.238, p<.001), interdental brush(${\beta}$=.242, p<.001) and water pik(${\beta}$ =.180, p<.05) recognize that the result and effect after using them are more positive than the others in different case. 4. Respondents who use toothbrush(${\beta}$=.119), dental floss(${\beta}$=.120) and interdental brush(${\beta}$=.136). frequently evaluate their subjective oral health status positively in case of frequency of using oral hygiene devices and subjective oral health status(p<.05). 5. Respondents who use toothbrush and interdental brush properly and frequently, who are older than the others show more concern about participating in education of "How to use oral hygiene devices" than the others(p<.05). Conclusions : In conclusion, to prevent oral disease, the opportunity of participating in education about correct knowledge and proper way should be expanded. And we should contribute to oral health improvement through developing, executing and informing systematic, popular oral health education with active one.

• Journal of Korean Dental Hygiene Science
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• v.3 no.1
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• pp.1-13
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• 2020

The purpose of this study was to investigate the perception of calculus removal, an essential factor in periodontal disease in the elderly population. Further, the study aimed to identify the oral hygiene management matters of individuals and to use the information as primary data for preventing dental loss and improving the prevention of chronic diseases. From December 20, 2019, to January 15, 2020, the results of 171 studies on oral hygiene management and awareness of calculus removal among the elderly aged 65 or older in Busan and Gyeongnam are as follows: The elderly with good health appreciated their functional oral health status and showed significant differences (Χ²=298.26, p<.001). Many of the elderly brushing their teeth at least three times a day had a better health status and showed significant differences according to their health status (= 134.42, p <.001). Usually, older people who are in good health have a dental floss (Χ²=89.31, p<.001), and the dental floss were used more often and significantly differed depending o health status (Χ²=92.53, p<.001). The elderly's perception of tartar removal has shown that the overall average out of five points is positive at 3.48. Older female adults were more positive and showed significant differences regarding gender (t=-7.95, p<.001). Senior citizens aged 65 to 70 were more positive about dental removal than those aged 71 or older, with significant differences in age (t=6.65, p<.001). As described above, oral hygiene management for the elderly population needs to develop a periodontal disease prevention program linked to systemic diseases, considering that there are many chronic diseases.

• Journal of the Korea Convergence Society
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• v.12 no.8
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• pp.187-195
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• 2021

In order to assess the cell toxicity of 10 instruments made of polymers, the MTT assay which utilizes the L-929 cell was selected. Specimens were eluted at a temperature of 37℃ for 24 hours at a rate of 4g per 20mL, RPMI 1640, and then was positively and negatively contrasted with a control test solution, in accordance with the Notification No. 2020-12 Protocols of Medical Apparatus Biological Safety from the Ministry of Drug and Food Safety. As a result of 24 hours of incubation in 37℃, 5% CO₂ Incubator and assessment using an ELISA reader, the results of Intraoral camera indiciated a cellular viability of more than 70% at a 50% eluate. But, the Plastic impression tray, 3D printing tweezer, Impression disposable syringe, Dental floss holder, Hand implant scaler, Surgical retractor, Oral scanner tip, Dental mirror, and the Water pick tip all reported a cellular viability of more than 70% at a 100% eluate, which indicates that do not exhibit cytotoxicity, thus allowing it to be used in contact with the mucous membrane of the oral cavity.

• The Journal of Korean Academy of Prosthodontics
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• v.59 no.3
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• pp.291-298
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• 2021

Purpose. The purpose of this study is to compare five interdental cleansing products' effectiveness on removing artificial dental plaque on the interdental space of zirconia crowns. Materials and methods. A model with abutments on the right mandibular second premolar and first molar were prepared. 10 zirconia crowns for each abutment were fabricated. After applying artificial dental plaque between the zirconia crowns, a single clinician attempted to remove the plaque with five products: interdental toothbrush, end-tuft toothbrush, dental floss, Easypick, Water pik. They were conducted 10 times per group. The aspect and area of removed surfaces were analyzed using images taken with a digital camera. One factor analysis of variance was performed as a statistical analysis, and a post-hoc test was performed using the Scheffé method (P < .05). Results. There were differences in the area and the pattern according to the characteristics of the products. The largest area, including the marginal portion, was removed in the dental floss group. Interdental toothbrush group was the most effective in removing the dental plaque at the marginal portion. Easypick was less effective than the interdental toothbrush. The end-tuft toothbrush showed better results than other products in cleansing mesiobuccal and distobuccal area, but could not cleanse the area directly below the contact point. In Water pik group, artificial dental plaque was scarcely removed. The removal rate of artificial dental plaque was in the order of floss (69.47%), end-tuft toothbrush (49.36%), interdental toothbrush (44.20%), Easy pick (13.04%), and Water pik (0.59%). Conclusion. Dental floss showed the highest removal rate in the interdental space restored with zirconia crowns, while interdental toothbrush was the most effective in removing the dental plaque at the marginal portion.

• Journal of Korean society of Dental Hygiene
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• v.14 no.3
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• pp.311-317
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• 2014

Objectives : The purpose of the study is to investigate the relationship between the removal of halitosis and use of oral hygiene devices. Methods : A self-reported questionnaire was filled out by 300 patients visiting to dental clinics in Gyeonggi-do from May to June, 2013. The questionnaire consisted of general characteristics, oral health related characteristics, satisfaction of oral hygiene devices were measured. Results : Halitosis accounted for 11.0% in dental clinic visit. In order to remove halitosis, dental floss is the most satisfactory and effective method of all auxiliary oral hygiene devices. Conclusions : A variety of auxiliary oral hygiene devices are being sold and used to remove halitosis. It is important to choose the most effective oral hygiene devices to remove halitosis.

• Journal of dental hygiene science
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• v.22 no.1
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• pp.37-43
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• 2022

Background: Among the health problems in old age, oral health is closely related to nutrition intake and digestion, so although it is an important factor in the well-being of the elderly along with general health, studies examining the relationship between oral health-related factors and grip strength of the elderly are insufficient. Therefore, this study intends to examine the relationship between oral health-related factors and grip strength, which are closely related to the general health of the elderly. Methods: This study used data from the 7th period of Korea National Health and Nutrition Survey (2016~2018) approved by the Research Ethics Review Committee of the Korea Centers for Disease Control and Prevention. Complex sample frequency analysis and descriptive statistics were performed, and general linear model analysis was performed to confirm the relationship between demographic characteristics, oral health -related factors and grip strength. The statistical analysis was performed using IBM SPSS Statistics for Windows, Version 23.0, and the significance test was based on type I error level of 0.05. Results: Grip strength was higher in the case of no discomfort than in the case of discomfort in relation to mastication discomfort and grip strength (B=0.927, p<0.001). In addition, the grip strength was decreased by 1.348 times when not using dental floss (p<0.001) and when not using mouth wash was 1.480 times (p<0.001). Conclusion: In this study, in the relationship between oral health-related factors and grip strength, grip strength was found to be high in the absence of mastication discomfort. and in the case of using dental floss and mouthwash the elderly showed high grip strength. Therefore, it is suggested to present a lifestyle to improve hand function and grip strength in the elderly and develop a program to increase grip strength and provide them at the same time during oral health education.

• Journal of dental hygiene science
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• v.15 no.3
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• pp.333-339
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• 2015

The study was intended to investigate the factors affecting dental caries in adults. To that end, adults aged 19 years and older among 10,113 subjects who completed the health-related questionnaire, medical examination and nutrition surveys in the first year (2013) of the 6th Korea National Health and Nutritional Examination Survey, and 4,843 subjects categorized as patients with permanent teeth caries were included in the final analysis. The prevalence of dental caries in line with socio-economic aspects was found to be higher in men than in women. In view of education, the prevalence of dental caries was high in high school graduates, middle school graduates, college graduates and other advanced degree holders in the order named. Low monthly income earners showed the highest prevalence of dental caries. As for health-related lifestyles, the prevalence of dental caries was higher in smokers than in non-smokers. Obese subjects showed a little higher prevalence of dental caries compared to people of normal weight. Also, the prevalence was higher in those who failed to get oral examination than otherwise. Frequent daily toothbrushing and use of dental floss and interdental brush significantly decreased the prevalence of dental caries. In the logistic regression analysis with the presence or absence of dental caries employed as a dependent variable, gender, age, income level, smoking, oral examination and use of dental floss were found to serve as independent variables affecting dental caries. Therefore, Korean adults' socio-economic factors and lifestyles were proved to affect dental caries, which warrants some dental health programs and action plans designed to help lead healthy lifestyles whilst preventing dental caries and improving dental health in adults.