• 한국치위생학회지
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• 제10권5호
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• pp.917-924
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• 2010

Objectives : The objective of this research was to investigate the smoking state of students in Y university, located in Youngdong-gun, Choungbuk. Methods : This research was conducted toward 311 number of students in the university. The questionnaire basically consists of the status of smoking, the behavior of smoker and non-smoker. Results : 58.2% of the male respondents were current smoker, but 72.4% of the females were non-smoker. 58.2% of the current smokers were 22 to 25 aged group. The highest rate of time to begin with smoking was in 15 to 18 years old and the most of people consumed 11 to 20 pieces of cigarettes per day. 48.9% of the students have an experience to keep no smoking more than one month. There were reverse correlation(r=-.335) between the status of smoking and sex, and positive correlation(r=.264) between the status of smoking and an age. Of the people experiencing non-smoking, 55.3% were smoking 'everyday' and 44.7% were 'sometimes'. The biggest part of the reason why stopped smoking was for 'the advices of other people'(25.5%), and 'Harm to health' and 'Social atmosphere of non-smoking'(21.3%) were following. Conclusions : In the university students, current smokers among male students were still high smoking rate. Therefore Dental Hygiene students in the same University have to provide the quit smoking education and oral health care methods for current smokers.

• 한국식품영양과학회지
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• 제35권3호
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• pp.294-300
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• 2006

폐자원의 기능성 식품으로서 활용 가능성을 평가하기 위하여 유자종실의 일반성분 분석 및 항산화활성을 검토하였다. 유자종실의 조지방의 함량은 $35.29{\pm}0.18%$이었으며, 총 무기질함량은 1171.64 mg/100g으로 칼륨의 함량은 $637.99{\pm}5.38mg/100g$으로 가장 높았다. 총 페놀함량은 $24.44{\pm}1.10mg/100g$, 총 플라보노이드함량은 $2.27{\pm}0.18mg/100g$으로 정량되었다. 전자공여능, hydroxy radical 소거능 및 SOD유사활성은 유자종실 에탄올추출물의 농도가 증가함에 따라 유의적으로 항산화효과가 상승하였다. 아질산염 소거능은 모든 실험구에서 시료의 첨가 농도가 증가할수록 상승하였으나 유의적인 차이는 적었으며 , 전반적으로 pH 4.2보다 pH 1.2에서 아질산염 소거능이 유의적으로 높게 나타났다. 대두유 기질에서 과산화물가 및 산가는 유자종실추출물의 첨가유무에 관계없이 저장기간에 따라 증가하였으며, 저장 16일에 시료 무첨가구에 비해서 유의적으로 높은 항산화활성을 나타내었다.

• 한국식품위생안전성학회지
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• 제20권4호
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• pp.237-243
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• 2005

유자를 과육과 과피로 분리하여 methanol, ether, ethylacetate 및 물로 추출하며 전자 공여능, 아질산염 소거능 및 NDMA생성에 미치는 영향을 검색하였다. 유자 과육 추출물의 경우 10 mg/ml이상 첨가시 ether추출물을 제외한 모든 실험구에서 $50\%$이상의 전자 공여능을 나타내었다. 과피 메탄올 추출물을 40 mg/ml 첨가시에는 BHA 및 ascorbic acid의 효능과 유사한 수준인 $99.2{\pm}0.37\%$의 전자 공여능이 나타났다. pH 1.2에서 아질산염 소거작용은 1mg/ml 첨가시 $40\%$ 이상의 소거능을 보였으며 시료량이 증가할수록 상승하였다. 또한 과육보다는 과피에서 아질산염 소거능이 다소 우수한 것으로 나타났다. 유자 과육 추출물의 NDMA생성 억제 효과는 메탄을 추출물을 pH 1.2의 반응 용액에 40 mg/ml 첨가시 $31.7{\pm}1.25\%$로 가장 높게 나타났다. pH 4.2 및 6.0의 반응 조건에서는 모든 시료 첨가구에서 $20\%$미만의 억제 효과가 있었다.

• The Journal of Korean Physical Therapy
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• 제20권3호
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• pp.45-51
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• 2008

Purpose: We evaluated the physical stress and pain to the musculoskeletal system of a dental practitioner when engaging in a dental scaling training exercise to prevent the development of musculoskeletal injuries. Methods: The 18 female (average age: 21$\pm$1 years) subjects were voluntarily picked from a group of juniors who have completed a one-and-a-half year training course that includes training exercises on the dentiform and on live subjects (other trainees). The test is done by measuring pain, activity, grip strength, and finger dexterity for each subject's hand and wrist. Before the test all subjects were confirmed to be right-handed and were informed of the study and its objective. Measuring was done before and after each subject performed dental scaling for one hour using the scaler and the curet. Results: Pain levels increased for both hand and shoulders, but hand pain was often greater than shoulder pain. Grip strength significantly declined in the right hand but not the left. For joint mobility, the flexion and the extension for the shoulder joint did not change; but the range of motion for both wrist joints significantly increased. For the dexterity test, both hands showed increased dexterity after the exercise. Conclusion: Dental scaling can affect the shoulders and wrists/hands. Therefore, a musculoskeletal injury prevention program for dental practitioners, which may include encouraging them to assume correct body posture when at work, must be sought. This study evaluated only the shoulders, wrists, and hands; but future studies should include areas such as the cervical area, the back, and the lower limbs.

• 대한물리의학회지
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• 제3권4호
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• pp.247-254
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• 2008

Purpose : The purpose of this study was to analyze some factors that can cause incidence of the muscle and skeletal system trouble, by which Dental Hygiene Students examine the pain and the inconvenient feeling according to kinds in manual implements and the usability in the level of manipulating and maintaining the manual implement, in the actual training of the intra oral cavity along with mannequin given the scaling practice. Methods : Targeting 18 female juniors for the department of dental hygiene, who had directly practiced oral prophylaxis for 2 years, the questionnaire research was carried out right after the mutual practice in the intra oral cavity along with mannequin. Results : It was indicated that there is no big difficulty both in intra oral cavity and mannequin in terms of manipulating implement with a method of maintaining the rightly hand fixing or of grasping the trans formative pencil and of controlling force given manipulating the implement. How to grasp a trans formative pencil was indicated to be more difficult in the intra-oral manipulation(p<.05). Pain and inconvenient-feeling level, which occur in muscle and skeletal system during practicing the scaling in mannequin, were indicated to be in order of shoulder, wrist, neck, waist, elbow, and headache. Conclusion : There was no big difference in the pain and the inconvenient feeling in muscle and skeletal system according to mannequin and intra-oral environment given manipulating tile manual implement. However, there was difference in manipulating the implement with a method of grasping transformative pencil. The pain and inconvenient feeling in muscle and skeletal system were the highest both in shoulder and wrist.

• 한국치위생학회지
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• 제13권1호
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• pp.105-113
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• 2013

Objectives : The purpose of this study was to perform researches and analysis on the use of dental institutions, oral health behavior, the actual conditions of oral health care, and the oral health knowledge according to the rank of soldiers and officers and then to provide the basic data for the contents development of an oral health education to the military. Methods : The subjects in this study were 380 soldiers serving in Gyeonggi, Gangwon and Chungchong provinces. Results : In terms of the use of dental institutions, the soldiers visit the dental clinics most(56.5%), and the officers visit the military dental clinics most(52.7%)(p<0.05). In the oral health behavior, the most of the soldiers(46.7%) and the officers(58.1%) answer that they thought to be in good oral health. Regarding the actual conditions of oral health care, it is investigated that the most of the soldiers brush their teeth twice a day(46.7%) and the officers three times a day(58.1%). With the oral health knowledge, the officers get a point of $2.89{\pm}1.36$, which is higher than the soldiers'($2.47{\pm}1.27$), and the person who have an experience to take an oral health education, getting a point of $2.83{\pm}1.22$, have higher level of the knowledge than the unexperienced with $2.48{\pm}1.31$(p<0.5). Conclusions : It is thought to be necessary to provide the military camps with an oral health education and to develop the contents of an oral health education customized to them.

• 한국치위생학회지
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• 제15권1호
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• pp.171-177
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• 2015

Objectives: The purpose of this study was to investigate the relationship between toothbrushing and hand washing according to health education experience in middle school students. Methods: The subjects were 480 students of four middle schools in Y region. This is a cross sectional study and the study instrument was adapted from the knowledge, attitude and practice of hand washing and toothbrushing in elementary school students by Jung. Cronbach's alpha was 0.87 in the study. The questionnaire consisted of 5 questions of the general characteristics of the subjects, 5 questions of hand washing knowledge, 3 questions of hand washing behavior, 3 questions of health education experience. Toothbrushing questionnaire consisted of 10 questions of knowledge, 5 questions of behavior, 5 questions of health education experience, and 5 questions of dental health care facilities within schools. Data were analyzed by PASW 20.0 program. Results: Toothbrushing more than three times a day accounted for 76.8%. Those who receiving health education in elementary school accounted for 41.5% and those who had not accounted for 58.5%. Health education experience(75.8%) led to toothbrushing after meal(p<0.05). Those who receiving health education in elementary schools had 1.76 times of toothbrushing after meal than those who had not(p<0.01). Conclusions: Middle school students receiving health education had a tendency to do toothbrushing and hand washing frequently.

• 한국치위생학회지
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• 제14권4호
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• pp.453-462
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• 2014

Objectives : The purpose of the study is to investigate the education, certification system, and extent of duty of dental hygienist between Korea and five developed countries including United States, Canada, England, Australia, and Japan. Methods : Internet based access to five developed countries was made and the analysis was done for the definition of occupation, main duties, similar occupations, education policy, job descriptions, license certification system, standards of duty, Q & A management, current status of obtaining certification, and scope of work. Results : United States has a two-year associate degree(AS) and a four-year bachelor degree(BS). Canada has two to three years degree and a two-year course is accepted in england and Australia. In the meanwhile, Korea and Japan have two-year and four-year educational courses. The duty of dental hygienists includes the prevention education for dental health and continuing dental health care. Most of the dental hygienists in Korea and Japan play the assistant roles for the dental surgeons. United States has national board examinations including written examinations, practical examinations, and computer assisted examination. Written and practical examinations are also conducted in Korea. England and Australia have the recognized educational organizations for qualification. Conclusions : Problem based and problem solving skills are the most important in dental hygienist education in Korea. The training of highly competent dental hygienists must be done for the improvement of dental hygiene in Korea in the near future.

• 한국학교ㆍ지역보건교육학회지
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• 제15권3호
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• pp.81-93
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• 2014

Objectives: This study aims to find status of the oral health care, the oral health education program utilization and the oral health guidance according to the experience status of oral health education of special school teachers. Methods: The study subjects were 133 teachers at special schools in Seoul, Gyeonggi, Chungbuk and Jeonbuk regions. Results: 32.8% of the male and 67.2% of the female teachers have the oral health education experience. Barriers for the dental treatment to teachers with the education experience show in the order as 'disabled children's noncooperation' 49.2%, 'economic reasons' 37.7% and 'medical institution's rejection' 6.6% and, to teachers without the education experience, 'disabled children's noncooperation' 45.8%, 'economic reasons' 19.4% and 'not emergency situation' 13.9%(p<0.01). Regarding the necessity of arranged institution to manage the oral health, 91.8% of teachers with the oral health education answer as 'necessary'(p<0.05). Regarding the barriers on the performance of oral health program 27.9%, the majority of teachers with the education experience answer as 'insufficient administrative & financial support' and 36.1%, the majority of teachers without the education experience answer as 'insufficient understanding and expertise on the oral health education'. 86.9% of the teachers with the education experience and 62.5% of the teachers without the education experience are found to 'guide students on the oral health'(p<0.01). Conclusions: It was considered that various oral health education programs positively influential to the oral health care and education for disabled children should be developed according to the status of oral health education experience of special school teachers.

• 한국치위생학회지
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• 제19권2호
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• pp.265-275
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• 2019

Objectives: The aim of this study was to investigate trends of oral health behaviors in Korean adolescents. Methods: From the 2005 to 2017 Korea Youth Risk Behavior web-based Survey (KYRBS) Secondary Data (study to 748,461). Independent variables were the year, gender, grade, and living area. Dependent variables were the rate of tooth-brushing after lunch, scaling, use of sealant, and oral health education within 1 year. Chi-squire tests were used to estimate the rate of oral health behaviors and trends. In addition, multiple logistic regression analysis was used to estimate the association between socio-economic characteristics and oral health behaviors. The analyses were conducted using IBM SPSS statistics 21 (version 21.0, IBM Corporation, New York, NY, USA). Results: The rate of tooth-brushing after lunch and use of sealant have significantly increased every year. Oral health behaviors were significantly associated with socio-economic characteristics. The rate of oral health education was higher among males than females, which was in contrast to other oral health behaviors. The scores for tooth-brushing after lunch, use of sealant, and scaling in females were 2.33 (95% CI; 2.27-2.40), 1.31 (95% CI; 1.29-1.33), and 1.20 (95% CI; 1.18-1.22), which were higher than those in males. The score for use of sealant in the highest household economy group was 1.13 (95% CI; 1.10-1.17), which was higher than the lowest economy group. Conclusions: We found positive trends of oral health behaviors in Korean adolescents.