• Journal of Food Hygiene and Safety
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• v.35 no.4
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• pp.354-364
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• 2020

For this paper we analyzed heavy metals including lead, cadmium, arsenic and mercury, and conducted risk assessment on 171 types of herbal medicines used as foods and drugs distributed in Seoul's Yangnyeongsi and Kyungdong (Gyeongdong) herbal medicine markets. The concentrations of the heavy metals were measured by the ICP-MS and a mercury analyzer. The detection ranges of the lead, cadmium, arsenic and mercury were found to be ND-4.719 mg/kg, ND-1.019 mg/kg, 0.002-8.696 mg/kg and ND-0.058 mg/kg, respectively. Artemisiae Capillaris Herba exceeded the standards of the MFDS (Ministry of Food and Drug Safety) for cadmium items, and Actinidiae Ramulus et Fulium et Fructus Vermicultus exceeded the standards for arsenic items. The non-carcinogenic risk assessment showed that there were no items exceeding 1 and that they were safe. The risk of carcinogenicity to lead was below 10^-6 in all items and was evaluated as safe. The risk of carcinogenicity of arsenic was almost all in the range of 10^-4 to 10^-6. All %PTWI are considered to be safe below 100.

• Journal of Korean society of Dental Hygiene
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• v.21 no.2
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• pp.193-201
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• 2021

Objectives: We evaluated the learning objectives of dental hygiene courses based on Bloom's learning objectives, and analyze the degree of match with the dental hygienist's job for each detailed subject. Methods: The 5th edition of 'Dental hygiene and learning objectives' was analyzed by subject based on Bloom's cognitive domain classification from March 10 to April. In addition, the degree of match between the contents of the secondary job analysis of the dental hygienist and the learning objectives for each detailed subject were analyzed. Results: The total number of dental hygiene learning objectives was 2,975 (2,762 theory, 52 practice). Among the cognitive domains, the comprehension domain was the most common (79.8%), and the skill domain was very low (4.9%). In the job for each detailed subject of dental hygiene, the most frequently performed was 'dental prophylaxis and practice' with 103 subjects. Conclusions: Overall, dental hygiene learning objectives are mostly theory-oriented, so it is necessary to expand and improve in the direction related to the jobs that clinical dental hygienists perform in the field. In addition, it is necessary to continuously develop timely learning goals, and prepare active strategies for developing high-quality items.

• Journal of Korean Academy of Oral Health
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• v.42 no.4
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• pp.175-180
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• 2018

Objectives: This study aimed to evaluate the relationship between oral health professionals' knowledge, attitude, and practice with regard to infectious waste management and to identify related factors influencing it. Methods: The study comprised of 219 oral health professionals from select dental clinics and public health centers recruited between August 25, 2016 and September 5, 2016, who agreed to participate in the study with full understanding of the study objectives. A self-reported questionnaire was administered, which consisted of 22 items on knowledge of infectious waste management, 9 items on attitude, and 16 items on practice. Data were analyzed using Pearson's correlation coefficient and stepwise multiple regression analyses. Results: The age, knowledge, and clinical attitude of oral health professionals significantly correlated with waste management practice. Specifically, infectious waste management practice improved with increasing age, a greater level of knowledge, and a more positive clinical attitude. Additionally, the standardized regression coefficient demonstrated that, of these three factors, clinical attitude more strongly correlated with effective waste management practice, followed by age and level of knowledge. Conclusions: These results indicated that oral health professionals had a low level of knowledge regarding infectious waste management, and a more positive clinical attitude resulted in better practices. Therefore, the development of detailed and active education guidelines and strategies are needed to enhance the attitude, knowledge, and practice of oral health professionals with regard to infectious waste management.

• Journal of Korean society of Dental Hygiene
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• v.15 no.6
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• pp.1073-1082
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• 2015

Objectives: The purpose of this study was to examine the awareness and actual condition toward nonsmoking policy in Korean adult. Methods: A self-reported questionnaire was completed by 306 Korean adults between 20 to 60 years old from April 27 to May 26, 2015. The questionnaire consisted of general characteristics of the subjects, smoking status(3 items), nonsmoking status(9 items), and nonsmoking policy(7 items). Data were analyzed using SPSS 18.0 program. Results: Those who had alcohol consumption or not tried to participated in the nonsmoking program(p<0.05). There was a significant difference between nonsmoking education, cost of the nonsmoking education, and intention to stop smoking. Alcohol consumption is closely related to smoking and the appropriate approach to nonsmoking campaign must be done carefully on the basis of intention to stop smoking(p<0.05). Conclusions: As the government prohibits smoking in the public place, it is important the smokers to stop smoking by themselves and help the smokers to practice nonsmoking in their free will.

• Journal of Korean society of Dental Hygiene
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• v.18 no.1
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• pp.139-151
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• 2018

Objectives: This study was to compare the self-evaluated outcomes of communication competency in dental hygiene process of care in the students of a dental hygiene department with the teaching evaluation, and to confirm the difference of communication competency by the evaluator. Methods: This study attempted to confirm the value and usefulness of self-evaluation and teaching evaluation on the communication competency. The subjects of this study were 43 junior students who took a course of dental medical communication at the dental hygiene department of a university located in 'A' city, and the self-evaluation and teaching evaluation were conducted using the evaluation paper which was modified from the communication evaluation tool in the previous studies. The collected data were subjected to the correspondence sample t-test to compare the difference between the communication competency self-evaluation before and after the education, and after communication education, while an independent sample T-test was conducted to compare the differences between the evaluators. Results: The student's self-evaluations before and after the education showed the statistically significant difference, moreover, the post-education competency scores were improved mostly in all the items more than the pre-education competency scores. The score of self-evaluation was higher than that of the teaching evaluation in all items except one question in the case of history-information collection stage. Conclusions: It is confirmed that there is an effect to allow the students to improve their communication competency in the dental health communication education in the dental hygiene department. To evaluate the student's communication competency, the mutual complement of self-evaluation and teaching evaluation should be confirmed in parallel each other.

• Journal of Korean society of Dental Hygiene
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• v.9 no.4
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• pp.874-884
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• 2009

Objectives : This study was to investigate the level of oral health concern and the purchase behavior of environmental friendly agricultural products and to determine the relationship between oral health concern and the purchase behavior of environmental friendly agricultural products. Methods : The subjects were 99 male(29.7%) and 234 female(70.3%), who were over 20 years with mean age of 39.6 years. The data was collected using personal interviews and a self administrated questionnaire from August 1 to September 30, 2008. Oral health concern was measured using the 7-items, and the purchase behavior of environmental friendly agricultural products was measured using the 7-items. The data were analysed with t-test, one-way ANOVA and multiple logistic regression using the SPSS 15.0 windows. Results : Regarding oral health concern, the subjects was a mean of 2.86 out of a maximum 5 points. There were differences in the level of oral health concern according to the purchase behavior of environmental friendly agricultural products(experience, period, frequency, price, weight). Conclusions : These results suggest that the strategies of habitual use environmental friendly agricultural products to put in practice oral health promoting behavior is needed to improve quality of life in people.

• Journal of Environmental Impact Assessment
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• v.27 no.2
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• pp.194-202
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• 2018

Health impact assessment in South Korea is carried out within the framework of Environmental Impact Assessment (EIA). And, public health and hygiene items in EIA as an evaluation of health impact items were designed to calculate the emission level of hazardous air pollutants from specific development projects, and the exposure concentration at major sites, and to assess the health risk associated with these projects. But, the assessment of the receptor characteristics around the development project is limitedly considered. The purpose of this study is to propose the method of calculation of potential exposed population and the use of it for public health and hygiene items in EIA. The data for the calculation of potential exposed population in South Korea were identified. And the calculation algorithm based on them was proposed. After that, in a development of industrial complex, a case analysis was carried out assuming the release of hazardous air pollutants. This study suggested that the concept of population risk should be applied in risk assessment utilizing the potential exposed population and as a future study, a standard of assessment of health effects for population risk should be established. Finally, the possibility of using this study as a location-limiting tool for the development project was presented through the method of calculating the potential exposed population. It is meaningful that this study presented a method for performing risk assessment from the perspective of receptors around a development project.

• Journal of Korean Public Health Nursing
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• v.11 no.1
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• pp.51-65
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• 1997

The purpose of this study was to make a comparative analysis of nursing students interest in health matters concerning themselves and compare it to non-nursing students. The results were to be categorized and used as health content recommendation when organizing health curriculum and planning health education programmes. The instruments used this study were 'The Health Inventory and The Health Need Inventory introduced to 80 items from 125 items by Lee in Korea(1980). There was a very high correlation between the 125 items and condensed 80 items (r=0.9508, t=11.0643. p<.001). The convenience sample was chosen from 226 nursing students and 204 non-nursing students in the departments of humanities of college in Inchun and Ansan from March 4 to April 5. 1996. Data were analyzed by the SAS computer Program. The results are as follow: When comparing health interest of nursing student group with non-nursing student group, total group mean of nursing students was significantly higher than that of non-nursing students (t=2.977 p<.01). But the rank order of the nursing student group was similar to that of the non-nursing group. and what nursing student felt interested was coincident with what non-nursing students felt as being necessary. The most interested health area between nursing student and non-nursing students were ${\ulcorner$personal hygiene & grooming${\lrcorner}$ ${\ulcorner$weight control${\lrcorner}$, ${\ulcorner$sex education${\lrcorner}$ ${\ulcorner$mental health${\lrcorner}$. On the other hand the least interested health areas were. ${\ulcorner$smoking and health${\lrcorner}$ ${\ulcorner$alcohol and health${\lrcorner}$, ${\ulcorner$drug and narcotics${\lrcorner}$ In non -nursing students but in nursing students ${\ulcorner$structure and function of body${\lrcorner}$, ${\ulcorner$dental health${\lrcorner}$ ${\ulcorner$safety${\lrcorner}$. Comparing students health interest by major In college, total group mean of nursing students is significantly higher than that of non-nursing students in 14 health areas including ${\ulcorner$community health${\lrcorner}$, ${\ulcorner$control and prevention disease${\lrcorner}$ ${\ulcorner$consumer health${\lrcorner}$ ${\ulcorner$family health${\lrcorner}$ ${\ulcorner$mental health${\lrcorner}$ ${\ulcorner$personal hygiene and grooming${\lrcorner}$ ${\ulcorner$safety${\lrcorner}$ ${\ulcorner$structure and function of body${\lrcorner}$, ${\ulcorner$sex education${\lrcorner}$ ${\ulcorner$alcohol and health ${\lrcorner}$ ${\ulcorner$ drug and narcotics${\lrcorner}$ and ${\ulcorner$smoking and health${\lrcorner}$ The following recommendations could be made considering the above mentioned factors: 1. The priority of health content should reflect the items to the highest interest area of students and highest need area of adults. 2. The health items which were significantly different in the area of health interest, by major, should be used in planning health education programmes and organizing health curricula.

• Journal of Korean society of Dental Hygiene
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• v.11 no.5
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• pp.759-771
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• 2011

Objectives : The aim of study is the comparison of effect in oral health education frequency and contents for elementary school students from a part of community child center to run and suggest a practical and effective oral health promotion program for local community child center. Methods : The program has been running for 4 trials in G district in Seoul and 2 trials has been conducted in S city in Gyung gi province. The comparison was done in independent samples test of awareness, knowledge and behavior of children of community child center in both G district and S City and paired t-test was conducted before and after oral health promotion program to find out those same 3 items. Results : As a result, after the comparison of plaque control score of Oral health promotion program frequency, significantly better result was show in 4 trial program with 55.3 score(p<0.05), No significant result of plaque control score was shown in 2 trail program(p>0.05). Conclusions : As a result of the Oral Health Promotion program which has been conducted in 2 different session type, knowledge, awareness and behaviour has been changed, however, There were no significant difference between Oral health education frequency of those two different program. Also with the result of Plaque control score of those two programs were not satisfying level. Therefore, in conclusion, the management and operation of the Oral Health Promotion program is needed and it must be based on health promotion which it would change the behavior and attitude of the children.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.26 no.2
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• pp.159-169
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• 2016

Objectives: The objective of this study was to evaluate the generating characteristics of VOCs and the exposure effect to chemicals among laundry workers and to identify the current status of occupational safety and health through health check-ups. Methods: During the six-month period from April to September 2015, this study quantitatively measured seven VOCs in ten laundries and carried out health examinations on 35 workers. Results: Comparing the monitoring results for the ten laundries, they were classified into three groups by ventilation system, dry-cleaning and size of shop. The average concentration of toluene, chlorobenzene, xylene, ethylbenzene, benzene, styrene and TCE were 23.9, 15.6, 5.5, 2.8, 0.9, 0.3 and $1.3{\mu}g/m^3$, respectively. During dry-cleaning, VOC concentrations were 1.3-8.9 times higher than usual. On the other hand, at night the concentrations of toluene, chlorobenzene, xylene, ethylbenzene, benzene, styrene and TCE were 64.3, 41.5, 12.2, 6.3, 1.1, 1.2 and $6.6{\mu}g/m^3$, respectively. The health checkup results for the 35 workers showed that 13 workers were diagnosed as normal, while 22 workers were diagnosed as requiring continuous monitoring or re-checkup of liver and hematogenous functions. Conclusions: Although the results of exposure evaluation to VOCs did not exceed reference value and items had a low correlation with health checkup items, it is necessary to improve indoor air quality due to VOC volatilization from clothes.