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Dental Hygienists' Knowledge on Dental Amalgam Mercury and Its Treatment Practice (치과위생사의 치과용 아말감 수은에 대한 지식 및 행위)

  • Shin, Kyoung-Hee;Yang, Ji-Yeon;Kwon, Ho-Keun;Shin, Dong-Chun
    • Environmental Analysis Health and Toxicology
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    • v.22 no.3
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    • pp.247-254
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    • 2007
  • This study was performed with the questionnaire survey on mercury knowledge and mercury exposure avoidance behavior, which was conducted among 1076 dental personnel in September, 2004. As for the factors effecting the mercury knowledge, it seems that they are closely related with the personnel's educational backgrounds, and their understandings of causing environmental hazardousness in the dental offices. And also, the factors effecting the behavior of mercury exposure avoidance are strongly connected with the knowledge points on mercury, the knowledge of air states in the dental clinic offices, the use of pincettes and gloves in squeezing, and rubber dam and gloves in mulling, the experience of environmental education on mercury, etc. In the survey, the higher points in mercury knowledge is closely related with the higher points in the behavior of mercury exposure avoidance. Nevertheless, the very fact that the lower points in the behavior among personnel takes on the aspect of the relatively higher points in knowledge on mercury may be understood that the generally acquired knowledge on mercury cannot be the critical factor of the behavior of mercury exposure avoidance.

Analysis on Measurements and Shapes of Adult Male Hands for Functional Product Design (기능성 제품 설계를 위한 성인 남성의 손 관련 치수 및 형상 분석)

  • Jeon, Eunkyung
    • Journal of the Korean Society of Clothing and Textiles
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    • v.45 no.5
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    • pp.758-769
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    • 2021
  • Today, functional gloves must allow the wearer to perform many kinds of delicate work while protecting the hands from hazardous materials. In this study, multiple analyses of 3D hand measurements were performed to provide information on the hand size and shape required for the design of functional gloves for adult men. Size and shape characteristics were identified from 19 different hand measurements, and three factors were collected through factor analysis. The aggregated factor score was used to classify men's hand shapes into three types. These types showed different distribution patterns according to age, indicating a significant distribution difference between hand type and age group. Discriminant analysis extracted nine items that highly contributed to determining hand type. However, since the data provided by Size Korea have some limitations in fully representing hand shape, sampling additional types of hand measurements and using consistent conditions and methods are required for more accurate analysis.

Knowledge, attitude, and wearing of personal protective equipment among dental hygienists in regions during the COVID-19 era (위드 코로나 시대 일부지역 치과위생사의 개인보호장구에 대한 지식, 태도 및 착용)

  • Mi-Jung Park;Jung-Hwa Lee;Kyung-Ae Jang;Hyun-Seo Yoon
    • Journal of Korean society of Dental Hygiene
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    • v.24 no.2
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    • pp.163-174
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    • 2024
  • Objectives: This study aimed to understand the knowledge, attitude, and wearing of four types of personal protective equipment among dental hygienists based on to the COVID-19 infection control guidelines and to provide basic data on the need to wear these equipment by dental hygienists in dental medical institutions. Methods: Between March 31 and April 26, 2022, 285 dental hygienists working at dental institutions in Busan and Gyeongsang Provinces participated in the study. Results: The higher the knowledge on personal protective equipment, the higher the glove-wearing rate; and the higher the attitude toward personal protective equipment, the higher the KF94 mask-wearing rate. Furthermore, the higher the rate of wearing face shields, the higher the rate of wearing gloves and full-body protective suits; and the higher the rate of wearing gloves, the higher the rate of wearing a full-body protective suit. Conclusions: To prevent cross-infection by dental hygienists in dental medical institutions, it is necessary to have the four types of personal protective equipment at all times and to strengthen comprehensive education on these equipment

A Pilot Study for the Development of Functional Rural Workwear (기능성 농촌작업복 개발을 위한 예비연구)

  • Seungjung Na;Sujoung Cha
    • Journal of Fashion Business
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    • v.28 no.1
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    • pp.113-130
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    • 2024
  • A questionnaire survey of farmers engaged in actual farming was conducted to investigate the farmers' actual wearing conditions and preferences for agricultural workwear to develop workwear that is suitable for improved agricultural work efficiency. We extracted basic data necessary for the development of agricultural workwear. Analysis of the photographs taken showed differences in the shoes and gloves worn depending on the type of work. The percentages of men and women were equal among the agricultural workers. The age of the agricultural workers was analyzed and the results showed a higher percentage of those over 50 years old, indicating that the age of the agricultural workers was higher than in other industries. It was found that the waist, knees, and elbows of the workers were pulled during work, and analysis showed that the symptoms resulting from clothing pulling were more severe when the wearing dimensions were larger. It was recognized that the important aspects of workwear are those related to work, such as functionality, activity, and work efficiency. In addition to workwear, the most commonly worn auxiliary equipment was gloves, and other items included hats, armbands, work shoes, boots, seat chairs, and masks. When developing rural workwear, it is necessary to consider the fit, type of work, and materials of the workwear. Future research should focus on materials that can improve the functionality of workwear and pattern development that reflects physical and movement characteristics.

A Study on Medical Waste Contaminated by Radioactivity in Nuclear Medicine Department (핵의학과 일반 의료폐기물에서의 방사능 오염에 관한 고찰)

  • Yoo, Jae-Sook;Jang, Jung-Chan;Lee, Dong-Hoon;Cha, Min-Kyeong;Nam, Ki-Pyo
    • The Korean Journal of Nuclear Medicine Technology
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    • v.15 no.1
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    • pp.70-74
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    • 2011
  • Purpose: In the Nuclear Medicine department of Asan Medical Center, radioactive waste has been disposed of by using several disposal boxes designed for nuclear waste. However, some quantity of radioactivity has been detected occasionally due to some radiologists' carelessness not only from radioactive waste, but also from medical waste such as uncontrolled radioactive waste related to patients, poly gloves or saline solution bottles from radiopharmaceuticals laboratory. Thus, this study is going to suggest a solution to maintain the medical wastes made from controlled areas that can be below maximum permissible surface dose limits by finding the cause of radioactive contamination. Materials and methods: This study was taken place in 17 different places-2 medical wastebaskets in the waiting room, 2 medical wastebaskets in the PET room, 5 medical wastebaskets in the in vitro laboratory and 6 medical wastebaskets in the radiopharmaceuticals laboratory of the East building, 2 medical wastebaskets in the waiting room of the New building of Nuclear Medicine Department in Asan Medical Center from April to August 2010. Mean radioactivity and its standard deviation of each place have been found by measuring surface contamination of medical wastebaskets and backgrounds twice a week, totaling 30 times. An independent t-test of SPSS (Ver. 12.0) statistic program has been used for statistical analysis. Swabs, saline solution bottles and poly gloves collected from each place also measured 30 times, respectively. Results: This study analyzed medical waste and the backgrounds of each place by using survey meter detectors that significant differences of five places did not exist, but existed statistically in twelve places (p<0.05). Also, swabs, saline solution bottles and poly gloves collected from each radioactive waste partly exceed the legal dose limit as a result of measuring by a gamma counter. Conclusion: Backgrounds and the surface doses of radioactive disposal box in all 17 places measured by the survey meter did not exceed the legal dose limit; however, it obviously showed that there were prominent differences in 12 places. Assuming that the cause of the differences was swabs, saline solution bottles and gloves, we examined them by gamma counter, and the results showed remarkably high doses of radioactivity. Consequently, swabs and poly gloves which are normally disposed in the general medical waste box should be disposed in the radioactive waste box furnished by radiopharmaceuticals laboratory. Also, saline solution discharged from radioactive pharmaceutical places is considered as radioactive liquid waste so that it should be disposed of by the septic tank specifically designed for radioactive liquid.

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A Study on Practice of Infection Control by Dental Hygienists -With Reference to Seoul and Incheon·Gyeonggi Province- (치과위생사의 감염방지 실천 정도에 관한 연구 - 서울 및 인천·경기도를 중심으로-)

  • Park, Hyang-Sook;Choi, Jung-Young;Sim, Su-Hyun;Kim, Jin-Soo;Choi, Boo-Keun;Jang, Hee-Kyung
    • Journal of dental hygiene science
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    • v.8 no.4
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    • pp.275-281
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    • 2008
  • Background: This research aims to provide basic data for dental hygienists to implement the infection control after understanding the level of their implementation of infection control in case they have been trained of infection control or not. Method: The respondents in this research are the dental hygienists who worked in the Incheon or Gyeonggi areas between June 16 and July 5, 2008 and who attended complementary training conducted by the Seoul Branch of Korean Dental Hygienists Association in April 2008. A total of 191 questionnaires were distributed to them, and the frequency of the collected data was analyzed using SPSS WIN 12.0. Moreover, cross-tabulation analysis (${\chi}^2$) whose significance level was 0.05, was applied to the data in order to verify the statistical significance of the survey method. Result: There was significant difference in their practice to wear gloves and/or a mask, use a disposable apron and the time to change the apron depending upon the respondents' workplace. There was significant difference in the time to change their apron depending upon the respondents' time of service. 91.6% had been trained in the infection control: of them, 70.7% trained at their school. It was found that 68.6% of the respondents who had been trained in the infection control would wash their hands before treating a patient. 50.3% of the respondents who had been trained in the prevention of contamination would wear their gloves as needed for a basic treatment. Conclusion: Considering the above results of this research, it is concluded that it is necessary to provide practicing dental hygienists with many opportunities for systematic and practical training so that they may faithfully follow the guidelines for the prevention of contamination and to encourage hospitals to have a greater store of relevant facilities, equipment and supplies.

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A Study on Affect Factors in Dental Infection Control: Focus on Wash Hand and Put Gloves on of a Dental Step (치과감염관리 영향 요인에 대한 연구 -치과근무자의 손세척 및 장갑사용 실태를 중심으로-)

  • Choi, Jung-Young;Park, Hyang-Sook;Sim, Su-Hyun;Kim, Jin-Soo;Choi, Boo-Keun;Jang, Hee-Kyung
    • Journal of dental hygiene science
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    • v.9 no.1
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    • pp.35-41
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    • 2009
  • In previously study, many researchers have showed the infection control level and the knowledge of dental hygienists about dental infection control. But, they not tried to research the reason why hygienists don't keep to the infection control regulation closely. Therefore, this study was intended to highlight the affect factor that the infection control regulation keep in all dental hospitals well. The respondents in this research were the dental hygienists who worked in Incheon or Gyeonggi areas between June 16 and July 5, 2008 and who attended a complementary training program conducted by the Seoul Branch of Korean Dental Hygienists Association in April 2008. A total of 191 questionnaires were distributed to them, and the collected data was analyzed using SPSS WIN 12.0. Cross-tabulation analysis($X^2$), which significance level was 0.05, was applied to the data in order to verify the statistical significance of the survey method. According to replied, the reason why they don't used gloves were an unconvinced (38.9%), don't use by dentist (29.6%) and much expensive (9.3%). The gloves supplied a hygienist were proper in most case, 94.8%, but short in hospital, 12.0%. In order to take a good infection control they needed to change the conscious of dentist (66.5%), and the will of dentist is most important to do good infection control (37.2%). Subsequently, the will of dentist is the most important factor in infection control area and must be changed their mind on the infection control.

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Development of Wrist Tunnel Syndrome Prevention Smart Gloves using CNT-based Tensile Fabric Sensor: Focusing on Mouse Use (CNT 기반의 인장 직물 센서를 사용한 손목터널증후군 예방 스마트장갑 개발: 마우스사용을 중심으로)

  • Chun, Se-Hwan;Kim, Sang-Un;Kim, Joo-Yong
    • Science of Emotion and Sensibility
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    • v.24 no.4
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    • pp.117-128
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    • 2021
  • In this work, we study smart gloves that can prevent carpal tunnel syndrome when using a mouse. Because the left and right wrist movements are fine, a tensile fabric sensor with a large gauge factor and low hysteresis was required before the study. A universal testing machine was used to calculate each gauge rate on four different fabrics, and the fabric with the least hysteresis was selected. In addition, three attachment methods were analyzed using Arduino to select a method with a large sensor value change. For prototypes made by attaching to the selected fabric, data patterns were analyzed using Arduino. The first method identifies only one sensor (A sensor), and the second identifies two sensors (A and B sensors). When the wrist is bent to the right, tensile fabric sensors are attached to both the left (A sensor) and right (B sensor) sides of the wrist, the A sensor is strained, increasing the △sensor value, and the B sensor is relaxed, decreasing the △sensor value. However, when the wrist was bent to the left, the pattern was analyzed in the opposite direction. Through this study, we examined smart gloves to prevent carpal tunnel syndrome with an algorithm that turns on the LED when the wrist is bent, and based on the results of this study, we will directly use mice on 10 people to identify problems and solve problems when used.

Ergonomic Analysis of Screw Driver Workstation (스크류 드라이버 작업장의 인간공학적 분석에 관한 연구)

  • 박희석;국정훈
    • Proceedings of the ESK Conference
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    • 1995.04a
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    • pp.165-172
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    • 1995
  • Twenty six subject drove screws with a screw driver into thick wooden sheet at three vertical and horizontal locations. Subjects drive screws for 3 minutes at each location and they assessed the conditon using the psychophysical scale. An ANOVA showed that only vertical location was a signicant factor in determining the pain ratings of various body parts. Driving screws at elbow height on the vertical surface ans with the lower arm close to the body on the horizontal surface were the work locations with the smallest ratings of perceived pain and discomfort. Wearing gloves had significant effects on reducing the pain of the hand.

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Research on report equipments application status for live-line works in UHV T/L (초고압 송전선로용 활선장비 활용현황 조사연구)

  • Lee, Hyeong-Gwon;Sohn, Heung-Gwan;Kim, Hyo-Jin;Kim, Dae-Sik
    • Proceedings of the KIEE Conference
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    • 2003.07e
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    • pp.127-131
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    • 2003
  • We have investigated about kinds of the equipment according to use. They have many kinds of equipments, namely conductive cloths, insulated gloves, conductive shoes, insulated sticks, swivel boom, fittings and insulator cradles etc. We have suggested about use of equipments, basic functions and shapes.

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