• 한국치위생학회지
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• 제7권2호
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• pp.123-133
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• 2007

This document is about immigrant worker who use counseling office for human rights in the Daegu Gumin Church. We researched their oral health state so that we can understand their situation and support them properly. General characteristics of study subjects, habits related to oral health, the oral examination and treatment clinic, participated in oral heath education program were studied by designed administered questionaire. And decay, filling(treatment teeth), missing tooth(lost teeth by dental-caries)was counted by oral examination, and calculated DMFT-index. This study was done from the July, 9, 2006 to Aug. 8, 2006. In a total of 289 immigrant worker, 77.9% of them were men and 22.1% of them were women. 55.7% of their salary was from 1,000,000 won to 1,500,000 won and most of them were working for a fiber industry. Many of them are living in korea for more then three years. DMFT index for men was 2.77 and for women was 4.06 so average of DMFT index was 3.06. 46.7% of them said that they are healthy in oral health state. The question for having difficulty using dental clinic in korea, 65.1% of them said "it is difficult". First reason was a communication problem and second was time. Most of them didn't have a oral health education but 85.1% of them said that they are looking forward to attending oral health education. Immigrant worker had better DMFT index then that of korean blue color worker. But still it is quite difficult for them using dental clinic in korea also cost. It is necessary to support them properly that medical insurance system, medical facilities of quality, medical insurance subscriber beside, made by their language, manual for them. At once, medical service improvement a policy is necessary for immigrant worker in korea.

• 대한치과기공학회지
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• 제38권3호
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• pp.225-235
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• 2016

Purpose: The purpose of this study aims to improve self-confidence, satisfaction and self fulfillment of dental technology students through practical skills competitions to meet the levels required by the industry. Method: The questionnaire was composed of 12 general characteristics, 23 self-efficacy, 25 practice satisfaction, 5 self-satisfaction, 12 self fulfillment out of 77 questions. The reliability of the surveys showed Cronbach' ${\alpha}=0.893$ on the self-efficacy, Cronbach' ${\alpha}=0.871$ on the practice satisfaction, Cronbach' ${\alpha}=0.857$ on self-satisfaction and Cronbach' ${\alpha}=0.941$ on self fulfillment. Results: Before and after the test result comparison showed a statistically significant difference for both men and women according to the general characteristics. Women's progress was higher than for men. The thought about dental technicians has changed for the better and showed a statistically significant difference. Subjects who have 3.1~3.5 school record showed the highest score on job skills, self-efficacy, practice satisfaction, self-satisfaction and self fulfillment according to the the general characteristics, and 3.6 ~ 4.0, 3.0 or less and 4.1 ~ 4.5 in order. Conclusion: This study was conducted with dental technology students who participated in practical skills competitions after 10 week 40 hours training in D college, and the results were as follows. Practical training improved the job performance, self-efficacy, practice satisfaction, self-satisfaction and self fulfillment improved significantly.

• 대한치과기공학회지
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• 제21권1호
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• pp.153-163
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• 1999

The 21st centurt, the era of change-space, is requesting us to readjust our education system. In other words, we should renew it by looking back into the past cultivate more advanced ideas. As a matter of fact junior colleges have been considered just as miniture of universities in every way such as curriculum, prossor emploment, school affairs, etc. Therefore we should change our existing education system not to be criticized for the next century. May students are trained for industry as dental technicians in our department of college. We should educate experiment and practice substantially as college professors as well as exert ourselves in developing our abilities to adapt to high diverse industrial technique, putting emphasis on practice more than theory. It is mecessary for us to sufficiently teach the technique to good students and make them display their abilities in order to produce high quality goods. Reinvestment ineducation is a condition precedent. Dental laboratories have just employed the students that graduated from our college. However it's time for a change. They should pay attention to our education and assist us in all respects with the thought of equally educating professional dental technicians together with us. The field practice system is subject to reinforcement so that our students have more opporunities of utilizing the tools and materials for practice. Finally we should not only carry out new reserch more deeply no less than dental technicians who are experienced in business for development of education system but endeavor to meet pratical education by adding what is pratically needed in dental laboratories to the existing education system.

• 대한치과기공학회지
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• 제43권4호
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• pp.145-152
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• 2021

Purpose: This study aimed to produce resin prosthetics using a dental barrel finishing machine. For dental resin grinding, the ingredients of the barrel finishing media were analyzed, and surface residues of the resin were observed. Methods: Two types of barrel finishing media for dental resin grinding were tested. Specimens were made from thermal polymerized, auto polymerized, and photopolymerized resins. Finishing media were analyzed through energy-dispersive X-ray spectroscopy (EDS) component analysis and inductively coupled plasma-optical emission spectrometry (ICP-OES) component analysis. Then, the prepared specimen was barrel finished for 25 minutes using two types of barrel finishing media, and scanning electron microscope was photographed to observe the surface residues. Results: As a result of EDS component analysis, both types of finishing media were analyzed for the components of C, O, Zr and Al elements, and industry media (IM) was further analyzed for the components of Si and Mg elements. In the ICP-OES component analysis, Cd and As, which are harmful elements, were detected in IM, and no harmful elements were detected in manufacturing media (MM). Because of observation of surface residues, no residues were observed in the three types of resin specimens that were barrel finished with two types of finishing media. Conclusion: Surface residue wasn't observed on the specimens polished using two types of finishing media. However, in IM, Cd and As, which are harmful elements, were detected, making it inappropriate for clinical use. In MM, harmful elements were not detected; therefore, clinical use will be possible.

• 방사선산업학회지
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• 제9권1호
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• pp.47-55
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• 2015

Research and investigation is required for the exposure dose of radiation workers to work in the dental hospital as increasing interest in exposure dose of the dental hospital recently accordingly, study aim to minimize radiation exposure by making a follow-up study of individual exposure doses of radiation workers, analyzing the status on individual radiation exposure management, prediction the radiation disability risk levels by radiation, and alerting the workers to the danger of radiation exposure. Especially given the changes in the dental hospital radiation safety awareness conducted the study in order to minimize radiation exposure. This study performed analyses by a comparison between general and dental hospital, comparing each occupation, with the 116,220 exposure dose data by quarter and year of 5,811 subjects at general and dental hospital across South Korea from January 1, 2008 through December 31, 2012. The following are the results obtained by analyzing average values year and quarter. In term of hospital, average doses were significantly higer in general hospitals than detal ones. In terms of job, average doses were higher in radiological technologists the other workes. Especially, they showed statistically significant differences between radiological technologists than dentists. The above-mentioned results indicate that radiation workers were exposed to radiation for the past 5 years to the extent not exceeding the dose limit (maximum $50mSv\;y^{-1}$). The limitation of this study is that radiation workers before 2008 were excluded from the study. Objective evaluation standards did not apply to the work circumstance or condition of each hospital. Therefore, it is deemed necessary to work out analysis criteria that will be used as objective evaluation standard. It will be necessary to study radiation exposure in more precise ways on the basis of objective analysis standard in the furture. Should try to minimize the radiation individual dose of radiation workers.

• 한국엔터테인먼트산업학회논문지
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• 제14권3호
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• pp.421-429
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• 2020

본 연구의 목적은 치위생(학)과에 재학 중인 남학생들의 학과적응과 진로만족도가 전공만족도에 영향을 미치는 요인을 파악하여, 남학생의 진로지도 개발 및 전공만족도를 향상시킬 수 있는 기초자료를 제공하기 위함이다. 대상자는 서울, 강원도, 경상도에 소재한 4개 대학의 치위생학(과)에 재학 중인 남학생 102명을 편의 추출하였다. 연구 취지에 동의한 93명의 남학생을 대상으로 2019년 9월부터 10월까지 약 4주간 웹사이트를 이용해 자기기입식 설문조사를 수행하였다. 남학생의 전공만족도 전체 평균은 5점 만점에서 3.32점, 학과적응은 3.48점, 진로만족도는 3.08로 나타났다. 학과적응과 진로만족도가 전공만족도에 미치는 영향을 검증하기 위하여 다중 회귀분석을 실시한 결과 독립 변수인 학과적응(β=0.410)과 진로만족도(β=0.457)는 전공만족도에 유의미한 양의 영향을 미치는 것으로 분석되었다(p<0.001).

• 한국표면공학회지
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• 제36권4호
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• pp.339-346
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• 2003

Stainless steel wire has been used in industry, dental and medical parts. Especially, it has been used widely for the dental orthodontic materials. The orthodontic wire requires good mechanical properties, such as elastic strength, combined with a high resistance to corrosion. To increase elastic strength and good corrosion resistance, drawing methods(one-step and two-step drawing) have been used and the electrochemical characteristics of drawed wire have been researched using potentiodynamic method in 0.9％NaCl and field emission scanning electron microscope. The one-step drawed wire showed the formation of rough surface. The hardness and tensile strength of two-step drawed wire increased. For the case of two-step drawed wire, the corrosion resistance and pitting potential increased compared with one-step drawed wire due to the drawing induced small surface roughness, such as scratch. The passivation and active current density decreased as the reduction in area for drawing increased.

• 한국산학기술학회논문지
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• 제11권12호
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• pp.4928-4934
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• 2010

치과 의료계의 국 내외 여건변화 및 의료소비자들의 의료지식 향상에 따른 기대수준과 욕구 증대는 치과의료산업의 경쟁심화를 가져왔다. 이러한 치과의료 환경 변화에 적극적으로 대처하기 위해서는 치과의료 마케팅 전략구축에 노력할 필요가 있다. 따라서 본 연구는 치과의원 내원환자들의 긍정적 구전과 치과 의료서비스 품질 및 고객만족도 관계를 검증하여 치과의료 현장에서 적용할 수 있는 효율적인 마케팅 전략 개발에 필요한 근거를 제공하고자 한다. 이를 위해 서울, 경기에 소재하고 있는 6개 치과의원을 대상으로 2010년 3월 22일부터 4월 9일까지 3주에 걸쳐 실시하였다. 분석 결과는 다음과 같다. 긍정적 구전 경험 대상자의 치과 의료서비스 품질 인식(p<.001)과 고객만족도(p<.001)는 비 구전 경험 대상자에 비해 높은 것으로 나타났다. 긍정적 구전 경험자의 치과 의료서비스 품질 인식과 고객만족도는 정적 상관관계(r=.852, p<.001)가 있는 것으로 나타났다. 긍정적 구전 경험자에서 치과 의료서비스 품질 인식과 고객만족도가 일반적 특성 중 연령(p<.01, p<.001)과 치과이용 경력(p<.01, p<.05)에서 높게 인식됨을 확인하였다. 본 연구 결과는 긍정적 구전 유발을 위한 대상자별 차별화된 마케팅전략 수립에 있어 실증적 근거자료로 활용될 것이라 사료된다.

• Asian Pacific Journal of Cancer Prevention
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• 제15권23호
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• pp.10129-10135
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• 2015

Background: Tobacco is a leading preventable cause of deaths worldwide; the situation is particularly serious in the developing countries. Tobacco use amongst the children and adolescents is already a pandemic and they are vulnerable targets of tobacco industry. This is also the case in India. Objectives: 1) Document and monitor the prevalence of tobacco use including smoked, smokeless and other forms of tobacco; 2) Understand student knowledge and attitudes related to tobacco use and its health impact; 3) Assess the impact of tobacco on the oral health status of school-going children in India. Materials and Methods: The sample was 1,500 school children of the age group 12-15 years age. A pretested, close ended questionnaire was administered in the form of extensive face to face interview to understand student knowledge, attitudes and behavior related to tobacco use and its health impact and to assess the prevalence of tobacco use including smoked, smokeless and other forms of tobacco. Oral health status was assessed using the Community Periodontal Index (CPI). Frequency distribution, Chi-square tests and Odd's ratio was calculated. Results: Prevalence of tobacco usage amongst the prevalence was 20.4%: 9.2% reported smoking, 15.8% used tobacco in the chewable form and 25.3% children were involved in consuming betel nut/areca nuts. The OR (Odd's ratio) for calculus formation was highest for guthka chewers (OR=14.322), paan masala chewers had the highest odds of developing bleeding on probing when compared to the others. Conclusions: There is an urgent need to launch school-based tobacco prevention programs for community awareness of children and the public, as preventing the initiation of a habit is far easier than stopping it.

• 대한치과의사협회지
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• 제54권12호
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• pp.971-984
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• 2016

The increase rate of dentists' competition is very fast at metropolitan areas in South Korea. We compare metropolitan and rural parameters to investigate the relation between competition and revenue variation. The competition and revenue variables of 73 metropolitan and 75 rural areas were calculated from 2010 Census of Service Industry microdata which include non-insurance revenues of dental clinics. Independent sample t-test results showed that the level of competition among dental clinics in metropolitan areas is higher. The lowest and the low ranked revenues are higher in rural areas. The highest and the average revenues are higher in metropolitan areas. But, 25 percentile and median revenues has no significant difference between two areas. Simple log linear regression results showed that the number of clinics could explain the distribution of revenues in both areas better than the density of active dentists and Herfindahl-Hirschman index. In the areas with many clinics have high maximum and average revenues and low minimum revenues. The increasing rate of maximum revenues is higher in metropolitan areas though the decreasing rate of minimum revenues is higher in rural areas. Metropolitan areas have higher Gini coefficients than rural areas, but the increasing rate of Gini coefficients is lower than rural areas. Findings from this study are useful reference when the dentists select the opening areas. One is that the median revenues between metropolitan and rural areas have no significant difference. The other is that the rural areas ensure the more stable and uniform revenues. The results would help to relieve the consumptive competition among dentists and to achieve the distributional efficiency of dental human resources.