• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 제38회 하계학술대회
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• pp.1908-1909
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• 2007

The design of an intelligent toothbrush, capable of monitoring brushing motion, orientation through the grip axis, during toothbrushing is described. Inappropriate Toothbrushing styles, even in adults, sometimes cause dental problems, cavities, gingivitis, etc. This smart system provides user to monitor his or her brushing pattern using accelerometer and magnetic sensors for evaluation of toothbrushing style. Directional information of toothbrush with respect to earth's magnetic field and activity data were measured by a miniaturized low-power micro- controller, MSP430 and transmitted to personal computer by 2.4GHz radio transmitter, nRF2401. A personal computer provides an on-line display of activity and orientation measurements during toothbrushing. The signal trace is then analyzed to extract clinically relevant measurement. This preliminary study showed that the proposed monitoring system was conceived to aid dental care personnel in patient education and instruction in oral hygiene regarding brushing style.

• 한국학교ㆍ지역보건교육학회지
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• 제10권1호
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• pp.87-104
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• 2009

Objective: In this study, the dental health care knowledge, dental health behaviors and dental health status of elementary school students were compared and analyzed in the cases of their schools having dental health care center or not one. Methods: The target groups were 167 students of A school (experimental group) where pit-and-fissure sealants, fluoride mouthrinsing, and fluoride gel application were carried out with all grades of students by school dental health care center and 158 students of B school (control group) where fluoride mouthrinsing, for all grades students and pit-and-fissure sealants for the first grade students are carried out but have no the school dental health care center. Results: This study was carried out through the answer sheets and recordings of dental inspection. The findings of this study are as follows: 1. The dental health care knowledge was compared and the results showed that on average 14.2$\pm$2.1 in experimental group and 14.0$\pm$1.9 in the control group were no significantly different (p>0.05). 2. The dental health behaviors were compared and the results showed that the experimental group was significantly different(p<0.05) in terms of the number of times of dental brushing a day, the method of tooth brushing, the time of tooth brushing, the experience of tooth brushing with fluorine, the kinds of snacks and tooth brushing in school after lunch. But there was no significant difference(p>0.05) in the time of tooth brushing and the tooth brushing after eating snacks. 3. The DMF rate was compared and the results showed the significantly difference between the average experimental group and 53.8$\pm$5.0 in the control group(p<0.05). 4. The DMFT index was compared and the results showed the significantly difference between the average 0.6$\pm$2 in the experimental group and 1.4$\pm$1.6 in the control group(p<0.05). 5. The DMFI rate was compared and the results showed the significantly difference between the average 4.2$\pm$8.3 in the experimental group and 9.5$\pm$11.0 in the control group. (p<0.05). 6. The DT rate were compared and the results showed the significantly difference between the average 10.2$\pm$29.5 in the experimental group and 32.4$\pm$44.0 in the control group(p<0.05). 7. The FT rate were compared and the results showed the significantly difference between the average 88.5$\pm$31.0 in the experimental group and 67.5$\pm$44.0 in the control group(p<0.05). Conclusions: Based on the results, above there was no significant difference in dental health care knowledge between both the experimental and the control group. But we discovered that the experimental group is better than the other one in dental health care behaviors and dental health status. Therefore, we could conclude that the school dental health care center efficiently carried out the dental care and treatment. As school dental health care centers did not work out efficiently in terms of their educating on the dental health acre knowledge, the related programs to be developed and supported.

• 대한치과보철학회지
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• 제40권2호
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• pp.172-183
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• 2002

This study is going to compare the degree of color change which occurs in the following two cases of the factors which cause the color change of extra-staining, one is during glazing by the dental technician, the other is tooth brush abrasion which makes the biggest influence on color change. To compare the degree of color change before and after glazing, a sample was made with vintage incisal porcelain No. 59 OPAL(Shofu Inc, Japan), after that it was painted with three colors of porcelain stainers, then the degree of color was measured with a spectrophometer(Model Chromaview 300, Spectoron Tech Co. Korea) after it had been treated with firing only and glazing after firing 40,000-cycle and 80,000-cycle of tooth brush abrasion test were carried out in order to simulate the brushing effect of 4 years and 8 years by using the abrasion tester. The colors were measured before the test, and after the 40,000-cycle and 80.000-cycle operations and the surfaces were examined by SEM. The results of this study were as follows ; 1. The color change before and after glazing was not great enough to have a clinical significance but the orange color was changed more significantly statistically than the blue and light brown(p<0.05). 2. In the case of the color change of stained porcelain by tooth brushing, carrying out staining and glazing with two-times firings resulted in statically less color change than one firing only(p<0.05). 3. In the case of the difference in the stainer's color, the orange color which has higher chroma was statically more sensitive than the blue color(p<0.05) 4. In the case of the color change after the 80,000-cycle abrasion, all showed color change when there was one firing and the orange stainer showed some color change with clinical significance when firings were done two times.

• 한국치위생학회지
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• 제12권3호
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• pp.465-470
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• 2012

Objectives : In general, the active of volatile compounds which become usually known as the principal ingredient of bad breath is closely connected with temperature. In this study, an investigation was made into the correlation between oral malodor and the temperature of rinsing water. Specifically, an analysis was made of saliva in rinsing water with relation to amount, flow and pH. In addition, a calculation was made of O'Leary index. The results are expected to be basic data for oral malodor reduction plans. Methods : A total of 30 women who are in their 20s without any systemic disease and teeth braces and non-pregnant were chosen for the study. The research was carried during 3 weeks from 28 Mar to 11 Apr in 2011. Results : Saliva was not significantly affected by the temperature of rinsing water, in connection with saliva amount, saliva flow and saliva pH. The O'Leary index and oral malodor was the highest in warm water, but the subjects preferred rinsing with cold water. Conclusions : In conclusion, oral malodor was found to be reduced in inverse proportion to the temperature of rinsing water. Thus, it is recommended to rinsing water with warm water after tooth brushing.

• 보건의료산업학회지
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• 제6권2호
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• pp.15-23
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• 2012

In this study, oral health promotion behaviors of employees, daily frequency of tooth brushing, tooth brushing method, brushing time, whether or not to use oral hygiene accessories, and regular dental check-up to investigate oral health status of workers to the workplace and was to provide basic data for the development of oral health program to promote oral health. This study was performed from 2011 May 2 to May 20, 249 industrial workers in Ulsan metropolitan city surveyed and collected data using PASW 18.0 ver, descriptive statistics, Pearson's chi-square test was performed. In the result, the importance of oral health recognition was lacked, in order to maintain and promote the oral health status of industrial workers, regular dental check-up on oral health counseling and oral health education were conducted together and raising awareness of workers' oral health was necessary to improve level of oral health status.

• 보건교육건강증진학회지
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• 제10권2호
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• pp.32-39
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• 1993

The authors have examimed 349 primary school children with questionare in order to appraise the oral health educational levels, one month later after performing oral health education as direct education and indirect education with video film, and compared the data from 350 uneducated children. The obtained results were as followings ; 1. It was estimated that the direct and indirect oral health education for school children were effective for in creasing the knowledge levels of oral health. 2. It was revealed that such items of oral health education as preventive measure for caries, tooth brushing method, etiology of dental caries and etiology of malocclusion were more effective for increasing the knowledge levels, compared to uneducated group. 3. Tooth Brushing Method should be educated in practical, not only to school children but also school teachers. 4. It should be established the goals and items for oral health education in practical as national level.

• 대한치과의사협회지
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• 제15권4호
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• pp.305-308
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• 1977

Dental plaque has been considered as one of the major causes of inflammation. Therefore, removal of dental plaque by tooth brushing is the most important to prevent gingival and periodontal diseases and to maintain postoperative gingival health. The author executed clinical examination on 100 outpatients who were admitted to infirmary of dental college, S.N.U. The patients were examined on their tooth brushing method, frequency, habit and admitted experience to dental clinic. The obtained results were as follows; 1. The patient group who brushed with the method of Stillman, showed the lowest plaque index. 2. The examined group who brushed more frequently per a day, showed the tendency of reduced plaque index. 3. Plaque index was lowest in the group who brushed after meals and before bed. 4. The patient group who visited more frequently to dental clinic, showed the lower tendency of plague index. 5. Among the total examined group, those who recognized the importance of oral hygiene were less than 10%.

• Journal of Oral Medicine and Pain
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• 제23권3호
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• pp.271-276
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• 1998

The purpose of the pilot study was to know the relationship between halitosis and oral hygine, to examine the difference of the positon of the straw to be placed in the oral cavity by using Halimeter. Fourteen persons that has good health condition without halitosis were participated in this pilot study. They were treated twice prophylaxis and then they had not tooth brushing during two weeks. After two weeks, they were examied to gingival index, plaque index, VSC valuses. The obtained results were as follosws : 1. No significant difference of VSC values were observed during two weeks withoiut tooth brushing. But significant difference of gingival index, plaque index were observed. It was suggested that halitosis was not caused by only plaque, complex reasons(salivary function, stress etc) maybe caused halitosis. 2. Here were significant reduction of VSC values as the depth of plastic straw into the oral cavity decreased (p<0.05)

• 대한치과의사협회지
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• 제13권12호
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• pp.1157-1161
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• 1975

• Journal of Periodontal and Implant Science
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• 제3권1호
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• pp.8.2-8.2
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• 1973