• 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.

• Journal of Oral Medicine and Pain
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• 제23권4호
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• pp.327-341
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• 1998

Aims : The purpose of this study was to investigate whether there are any changes in taste sensitivity with advancing age and to see if smoking or oral hygiene can affect the taste sensitivity. Method : Nine hundred and thirty four subjects(458 male and 476 females) were included for the study and they were categorized into 4 age groups( under 20, 20 to 39, 40 to 59, and over 60 age group ). The electrical taste thresholds were measured using an electrogustometer for the 4 different sites in the oral cavity, I.e., tongue tip, tougue alteral, circumvallate papilla, and soft palate. Results : The elctrical taste thresholds were significantly incresed with advancing age in both gender, but the pattern of change is moere abrupt in female after 40. There were not significant differences in electrical taste threshold between smoking and non-smoking people. Taste thresholds were significantly lower in the groups with higher frequency of daily toothbrushing than the groups with lower frequency Conclusion : The electrical taste threshold is increased with aging. It is not influenced by smoking but by toothbrushing.

• 한국치위생학회지
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• 제16권1호
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• pp.27-35
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• 2016

Objectives: The purpose of the study was to find out dental caries and periodontal disease based on oral healthcare of adults in Busan. This study will provide the preventive oral healthcare for the periodontal diseases and dental caries. Methods: The study subjects were 369 people from the regular dental health checkup in the general hospital in Busan. After receiving informed consent, a self-reported questionnaire was completed from October 1, 2014 to January 31, 2015. The questionnaire consisted of dental caries and periodontal diseases by direct examination and toothbrushing method. Data were analyzed by ${\chi}^2$ test, Fisher's exact test, and Pearson's correlation. Results: In the morbidity of dental caries and periodontal diseases, the dental caries was most common in those having restored teeth(236 subjects, 64%), while periodontal diseases were found in mild cases of gingival inflammation in 285 subjects(77.2%), and mild cases of dental calculus in 274 subjects(73.4%). Most of the respondents replied that they did not have systemic disease or oral health related symptoms. According to toothbrushing pattern, dental caries experiences were most common in those having less frequent toothbrushing less than 3 minutes and no tongue brushing. The outbreak of dental caries was more common in 5 times than 3 to 4 times a day. Conclusions: The education of the right toothbrushing method and use of dental floss is the most important prevention of dental caries and periodontal disease in the adults.

• 치위생과학회지
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• 제2권2호
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• pp.69-73
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• 2002

The purpose of this study was to obtain baseline data for developing oral health education program. The questionaire about oral health knowledge and behaviors were given to 1419, 12 year-old children who lived in Seongnam City. The results were obtained as follows; 1) Of respondents, 46.2% visited dental offices within a year. And 33% of them were for the purpose of routine examinations and prevention. 2) 67.1% of them exhibited toothbrushing before bedtime and only 11.3% and 8.9% of them toothbrushed after between-meal intake and lunch. 3) 47.7% of them experienced dental health education programs and 72.3% of the programs had been during elementary school days. 4) 56.2% of them chose dentifrices without standards and 21.6% of them considered the presence of fluoride. 5) Of respondents, 57.4% and 46.4% knew the importances of toothbrushing and dietary pattern. But only 18.7% and 8.5% of them knew the methods of using fluoride and scaling. 6) 33% of them replied negatively to the probabilities of preventing dental caries. 7) Also, it is necessary to expand the oral health education programs for 12 year-old children in Seongnam City and include the annual screening dental examination, toothbrushing, dentifrice selection, using fluoride and scaling.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2011년도 제42회 하계학술대회
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• pp.1792-1793
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• 2011

본 연구에서는 양치 방향 및 각 부위에서의 양치 시간이 기록 가능한 지능형 칫솔을 이용하여 양치 교육에 따른 효과를 정량적으로 분석하였다. 칫솔의 가속도 센서를 이용한 자동 검출 부위는 칫솔모의 위, 아래, 오른쪽, 왼쪽으로 4등분 하였다. 실험 방법은 피험자로 하여금 첫 번째 실험에서는 평상시의 양치 습관을 따라서 자유롭게 측정하였으며, 지능형 칫솔을 이용한 교육 영상시청 및 양치 방법의 점수화를 통하여 피험자의 습관 교정의 필요성을 인지하도록 하였다. 그 후 일주일 동안은 각 가정에서 동영상 시청을 통한 습관 교정을 하였으며 두 번째 실험에서는 첫 번째 실험과 같이 자유로운 양치를 하도록 하였다. 결과적으로 4 부위별 양치시간이 교육 전에 비해 균형을 이루었으며 총 시간의 증가를 보였다.

• 한국임상보건과학회지
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• 제1권2호
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• pp.1-9
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• 2013

Purpose: The purpose of this study was to provide basic data of oral health policy and effective nonsmoking educational the basic data comparing the subjective oral health recognition and tooth brushing pattern by smoking whether or not, the subjects were adults to visit dental clinic. Methods: The subjects were a total of about 245 adults visited dental clinics in Busan metropolitan city and Gyeongnam province some areas. The datas were collected from December 17, 2012 to February 17, 2013. Data analyses were done with SPSS program through frequency analysis and chi-square test. Results: The tooth brushing pattern of non-smokers were more brushing after meals and snacks, and then brushing within three minutes before bedtime and brushing with more than 3 minutes, brushing with rotating method is pretty more, smokers were not brushing after the meal, a snack, and then within 3 minutes before going to bed without brushing, more than three minutes brushing with rotation method. Subjective oral health status of non-smokers, the more awareness is pretty healthy, but smokers were the more unhealthy side, the greater the smoking amount among smokers subjective oral health were recognized as a bad side. Conclusion: It was necessary to recognize subjective oral health status and to provide a way to practice corrective brushing pattern according to smoking or not and smoking amount. Subjective oral health awareness and brushing pattern directly related to the smoking or not and smoking amounts of the subject, so when dental care, it should be followed to recognize exactly what to give oral health status of subjects and provide a way of effective oral health management in order to improve the oral health and quality of life.

• Journal of Periodontal and Implant Science
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• 제38권4호
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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.

• 한국치위생학회지
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• 제13권6호
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• pp.1047-1055
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• 2013

Objectives : The purpose of this study was to evaluate the overall oral health knowledge and toothbrushing pattern of school dental clinic students in school dental clinics and to provide the basic data for the oral health. Methods : The subjects were 290 elementary school students visiting school dental clinics in Busan Metropolitan city. The data were collected from July 3, 2012 to July 19, 2013. Results : The visit rate of school dental clinics was 40.3%. Girl students brushing three times a day accounted for 47.3% and boy students brushing twice a day accounted for 58.5%(p<0.05). Students using rolling brushing method accounted for 35.4% and 8% of the students did not know the rolling method. Brushing method response consisted of circular motion(21.6%) and rolling method(30.8%). Brushing more than 3 minutes accounted for 46.5%(p<0.001) and 30.8% of the students chose rotation brushing method(p<0.001). Conclusions : It is very important for the elementary school students to learn the right oral health education and oral health knowledge.

• 치위생과학회지
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• 제16권3호
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• pp.217-224
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• 2016

본 연구는 2009년 국민건강영양조사 자료를 이용하여 우리나라 성인에서 다양한 혼란변수를 보정한 후 현존자연치아수와 COPD와의 연관성을 알아보고자 하였다. 40세 이상 성인 3,107명을 대상으로 구강검진과 폐기능검사를 시행하여 다음과 같은 결론을 얻었다. 첫째, 폐기능검사에 의한 COPD 유병률은 11%였다. 현존자연치아수를 0~19개군, 20~27개군, 28개군으로 나누었을 때, COPD의 분포는 현존자연치아수가 0~19개인 군에서 21.0%로 가장 높았다. 둘째, COPD는 65세 이상군, 남자, 교육수준이 낮을수록, 정상적인 BMI를 갖는 군, 고혈압군에서 높았다(p<0.001). 셋째, 인구사회학적 특성, 사회경제적 위치, 건강관련행태, 구강건강 및 행태, 전신건강상태를 보정한 다중로지스틱 회귀분석에서는 현존자연치아수 20~27개군(OR, 1.90)과 0~19개군(OR, 3.93)에서 COPD와 연관성을 보여, 현존자연치아수가 적을수록 COPD의 위험이 증가함을 확인하였다. 특히 치주질환과 COPD의 중요한 위험요인인 흡연상태에 따른 층화분석결과, 현재흡연군에서만 모든 치아를 가지고 있는 군에 비해 0~19개 치아를 가진 군에서 OR이 8.90배 높은 결과를 보여 강한 연관성을 보여주었다(OR, 8.90; 95% CI, 2.53~31.33). 본 연구 결과를 통해 현존자연치아수는 COPD와 연관성이 있음을 확인하였다.