• Journal of Technologic Dentistry
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• v.43 no.4
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• pp.194-201
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• 2021

Purpose: The purpose of this study is to investigate the relationship between clinical practice satisfaction, professional self-concept, and career identity among students of dental laboratory technology. Methods: From September 1 to September 15, 2021, data were collected through self-questionnaires completed by 180 students with clinical practice experience. The collected data were analyzed using the IBM SPSS Statistics ver. 22.0 statistical program. Frequency and percentage, mean, standard deviation, t-test, ANOVA, correlation analysis, and linear regression analysis were performed to analyze the data. Results: The average scores for clinical practice satisfaction, professional self-concept, and career identity were 3.17, 3.03, and 2.46, respectively. There were significant correlations between students' clinical practice satisfaction, professional self-concept, and career identity. There were positive correlations between clinical practice satisfaction and professional self-concept and between professional self-concept and career identity. Conclusion: Clinical practice satisfaction was found to play an important role in the formation of a positive professional self-concept as a dental technician. Therefore, a clinical practice program should be developed and implemented that can increase the satisfaction of clinical practice.

• Journal of Technologic Dentistry
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• v.38 no.3
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• pp.209-216
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• 2016

Purpose: The purpose of this study is to discover the recognition of dental technicians on MSDS and to research the furnishing rate of Material Safety Data Sheet (MSDS) in dental laboratories. Method: 104 dental technicians who were self-written questionnaire. The results were analyzed by SPSS 12.0. The answers to the questionnaire underwent frequency analysis, chi-square test were performed. Results: The result of cross analysis on the occurrence of occupational diseases according to whether MSDS is furnished showed that the group with MSDS furnished had 37.8% of damages due to their occupation, but the group with MSDS unfurnished had 65.7% of damages due to their occupation, which displayed a significant difference(p<0.05). The result of cross analysis on whether the education about chemicals according to whether MSDS is furnished showed there were relatively more responses of no education on the types and characteristics of chemicals, the effect on human body and its risk, emergency measure when exposed to risk, the treating and storing methods and the disposal methods. In addition, there were significant differences on whether all the above education was done between the group with MSDS furnished and the group without MSDS(p<0.000). Conclusion: In order to secure safe working environment of dental technicians and to reduce occurrence of damage caused by chemicals, the related education is necessary. The recognition of dental technicians on MSDS and furnishing rate is increasing but still insufficient, so the related organizations need to establish education and PR measures for prevention of damage.

• Journal of Technologic Dentistry
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• v.35 no.4
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• pp.321-332
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• 2013

Purpose: This study was examined the characteristics of bacteria isolated from the dental stone that is made ??in the dental laboratory. Methods: 104 dental stones samples were collected from the 4 dental laboratory. Characteristics of bacteria were investigated by microorganism isolation culture method using a Blood Tryptic Soy Agar(TSA) medium. Results: The detected various bacteria was confirmed as pathogenic bacteria, non-pathogenic bacteria and natural bacteria. The isolated bacterial number was confirmed $2.9{\times}10^3CFU$ and maxium bacterial number of $3.0{\times}10^4CFU$. Conclusion: Therefore, infection prevention education is required, it must be to live up the hand-washing and wear protective clothing to protect themselves when working in a dental laboratory.

• Journal of Technologic Dentistry
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• v.29 no.2
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• pp.163-171
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• 2007

The purpose of this study is comprehension for relationships between job stress and mental health for dental technicians in performing their duties. and this study can make use of opportunity of accumulation of data on dental technician's health care and work environment in future. Job stress for dental technicians served in general hospital dental laboratory were more highly effected than in local dental laboratory. and this result was statistically reliable. There were no meaningful differences in mental health between dental technician in dental laboratory in dental climic dental laboratory and commercial dental laboratory. and this result was not statistically reliable. The analysis of this study could be used by preliminary data to further research of relationships between job stress and mental health for dental technicians in the future. This study was made progress partially under limited members of dental technician in Seoul. so future studies are suggested that the more advanced total figure study for whole dental technicians in Korea.

• Journal of Technologic Dentistry
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• v.36 no.2
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• pp.91-96
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• 2014

Purpose: The purpose of this study was evaluate the validity of polyurethane model fabricated by intra oral scanning method. Methods: Ten sam cases of stone models were manufactured from master model, and polyurethane models were made with the intra oral scanning and CNC milling method. One examiner individually measured 6 distances(intercanine distance, intermolar distance, two dental arch lengths(right, left) and two diagonal of dental arch lengths(right, left) on the stone models and the polyurethane models. The Mann-Whitney U test(${\alpha}$=0.05) were used for statistical analysis. Results: The mean difference between measurements made directly on the stone models and those made on the polyurethane models was 0.31-0.38mm. No statistically differences between the two groups were founded 4 distances(p>0.05), but 2 distances were statistically significant(p<0.05). Conclusion: Stone models showed larger than polyurethane models fabricated by intra oral scanning method.

• Journal of Technologic Dentistry
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• v.25 no.1
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• pp.103-109
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• 2003

The purpose of this study is to ensure natural restoration of gingiva's form by making effective use of materials in a bid to improve the technique of festooning for denture base. 1. The improved technique is expected to prevent the degradation and deformation of cavity structure and restore it. 2. The improved technique is expected to prevent the change of facial appearance from esthetic viewpoint and restore it. 3. The improved technique is expected to impress again the deformed part on wax denture for additional festooning.

• Journal of Technologic Dentistry
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• v.10 no.1
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• pp.133-150
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• 1988

In order to know the recognition of dentist and laboratory technician about work order transmission and communication and troubles of restorations, this study was conducted for 84 practicing dentists and 122 dental laboratory technicians in Pusan during Mar. to Apr. 1988 using a questionnaire method and was analyzed by the use of percentage, $X^2$-test. Conclusions It is necessary that both dentist and laboratory technician clearly reconize and fulfill their responsibilities to one another. Dentist and dental laboratory technician should offer constructive criticisn to one another as interdependent member of a team. Effective use of work authorizations certainly promotes communication between the dentist and dental laboratory thechnician.

• Journal of Technologic Dentistry
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• v.24 no.1
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• pp.19-31
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• 2002

The purpose of this study was to examine the respiratory system health condition of dental technicians and to be of use for more successful health management and health promotion for them. The subjects in this study were 155 dental technicians who were working in North Jeolla province. Out of them, 70 dental mechanics were investigated in 1993, and 85 were surveyed in 2001. And the reports of the two groups on respiratory distress, including cough, sputum, phlegm, the notable sound of breathing, nasal discharge, coryza, shortness of breath and gasping, were compared. The findings of this study were as below: 1. The cough report rate was 24.3% in 1993 and 16.5% in 2001. There appeared approximately 7.8% decrease between the two years. The most powerful variables included working hours and age. 2. The complaint rate of sputum and phlegm was 47.1% in 1993 and 43.5% in 2001. The rate of 2001 reduced by 3.6%. Whether or not they smoked was identified as the most influential variable. 3. The report rate of shortness of breath and gasping was 7.4% in 1993 and 12.9% in 2001, and this rate showed about 1.5% increase in the latter year. The biggest variables were working hours and career. 4. The complaint rate of nasal discharge and coryza was 41.4% in 1993 and 44.7% in 2001, which showed about 3.3% increase. The largest variables were smoking and career. 5. The report rate of the notable sound of breathing and breathing in light little gasps was 12.0% in 1993 and 17.6% in 2001. There was approximately 5.6% increase, and the most powerful variables were working hours and career.

• Journal of Technologic Dentistry
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• v.39 no.4
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• pp.285-294
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• 2017

Purpose: This study was carried out in order to examine organizational commitment in dental technicians and turnover intention level according to it, and to analyze its effects. Methods: A self-reported questionnaire survey was carried out by having convenience sampling as 200 dental technicians. An analysis of the collected data was computationally processed by using SPSS Win 19.0 program. An analytical technique was made by using statistical techniques such as frequency & percentage, t-test, One-way ANOVA analysis. The following are the analytical results of the collected materials. Results: In consequence of analyzing organizational commitment level in research subjects, there was a significant difference in the items for age, task field, job position in charge, career in dental laboratory technology, and monthly income(p<.05). The average of the item for organizational commitment level stood at 3.29, thereby having been indicated to be high. As a result of analyzing turnover intention level in research subjects, there was a significant difference in the items for task field, job position in charge, career in dental laboratory technology, and monthly income(p<.05). The average of the item for turnover intention reached 3.04, thereby having appeared to be relatively high. As for a correlation between organizational commitment and turnover intention, all variables were shown to have inverse correlation at a significant level. In consequence of conducting regression analysis in order to analyze the influence of organizational commitment upon turnover intention, a factor of having the most impact on turnover intention appeared to be normative commitment. The test value of the model was statistically significant. The explanation power about this was indicated to be 26.9%. Conclusion : In the above findings, the dental technicians are considered to need to be immersed in work with a sense of mission in performing job in charge, to strive to possibly have an opportunity of achievement and self-growth, and to perform a research and development in a manpower management strategy such as turnover prevention.

• Journal of Technologic Dentistry
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• v.39 no.3
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• pp.179-185
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• 2017

Purpose: It is intended to raise awareness of importance of protective equipment and necessity of safety education by examining the actual condition of measures to deal with accident, occurrence of injury, whether safety education is received or not, the actual condition of wearing protective equipment, and working environment of dental lab and dental technician. Methods: A self-administered survey was conducted for a total of 150 dental technologists. A chi-squared test and independent-samples t-test was carried out by using SPSS WIN Program (version 12.0) in order to analyze the actual condition of safety education according to work experience and position and whether injury occurred according to whether to wear protective equipment. Significance level was 0.05. Results: With regard to whether injury occurred according to whether safety education was received, there was 'receiving the safety education-injured (71.8%)', 'not receiving the safety education-injured (79.7%)', 'receiving the safety education-not injured (28.2%)', and 'not receiving the safety education-not injured (20.3%)'. The statistical results of injury occurrence according to safety education were not significant. With regard to whether to be injured according work experience, there was 'less than 10 years-injured (68.4%)', 'less than 10 years- not injured (31.6%)', '10 years or above-injured (89.1%)', and '10 years or above-not injured (10.9%)'. The statistical results of injury occurrence according to work experience were significant (p<0.001). Conclusion: Dental lab and specialized agencies should continue to be interested in periodic safety training, recommending wearing protective equipment and personal protective equipment support and so on.