• 대한치과기공학회지
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• 제38권3호
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• pp.165-173
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• 2016

Purpose: This study was conducted to examine the color stability of temporary prosthetic materials for dental CAD-CAM. Method: 2 kinds of existing acrylic resin temporary filling materials and 2 kinds of polymer prosthetic materials for dental CAD-CAM were used for testing, and five specimens respectively were absorbed in soy sauce, red pepper paste, and coffee. A Chroma Meter was used as analysis equipment. The color change of the specimens was observed to calculate ${\Delta}E$ value throughout 2 days, 3 days, 4 days, and 5 days and this was analyzed and the following result was obtained. Results: Snap's ${\Delta}E$ value was bigger than Vipi block(p<0.05). Red pepper paste had the largest impact on the color change of resin(${\Delta}E$), followed by soy sauce and coffee(p<0.000). With the passage of time, ${\Delta}E$ value was inversely(-) related and decreased somewhat(p<0.000).

• 대한치과기공학회지
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• 제45권4호
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• pp.102-110
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• 2023

Purpose: This study aims to examine the influence of personality types on recovery resilience and college life adjustment among dental technology students. Methods: The study recruited 165 students in colleges in some areas using convenience sampling. Data were processed through reliability analysis, frequency analysis, descriptive statistics, and correlation analysis. Moreover, linear regression analysis was performed to confirm the influence. Results: The results confirmed that the motivation for selecting a department exerted an effect on adaptation to college life and satisfaction with majors (p<0.05). Additionally, the finding indicated that personality type partially influenced resilience and adaptation to college life among dental technology students (p<0.05). Finally, the results of regression analysis on adaptation to college life found that resilience and satisfaction with majors were significant predictors of adaptation to college life (p<0.05). Conclusion: To improve adaptation to college life, increasing resilience and satisfaction with majors is necessary.

• 대한치과기공학회지
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• 제43권3호
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• pp.106-116
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• 2021

Purpose: This is to provide fundamental resources for the improvement in the department of dental technology curriculum which will ensure effective preparation for the license examination for dental technicians as well as improvement in the students practical skills. Methods: Research analysis was conducted regarding the 2020 academic curriculum table of the department of dental technology established in 19 universities nationwide, from 5th of October 2020 to 30th of November 2020. Results: Research of the ratio of the establishment credit of the 3-year-course major in department of dental technology to the establishment credits of the license examination subjects showed, second semester of the first year (p<0.05), by academic discipline the whole first year (p<0.05) and second semester of first year, to be statistically significant. Conclusion: Hence, it can be concluded that there is a need for the management of a curriculum with distribution of adequate subjects according to academic year and semester, in order to satisfy not only the preparation for the license examination for dental technicians, but also students' academic desires.

• 대한치과기공학회지
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• 제36권1호
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• pp.27-37
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• 2014

Purpose: The purpose of this study is to investigate the improvement measure of dental technicians practical examination system. Methods: The subjects in this study were 290 dental technicians who were self-written questionnaire. The results were analyzed by SPSS 16.0. The collected data was analyzed by frequency and chi-square test. Results: Dental technician practical exam feasibility of survey were largely negative views. Articulators work required in practical exam as a tool used (28.7%), electric wax carver (19.5%), heating clear (17.8%), handpiece (16.2%) had a response. Dental Technician positions in accordance with practical exam in comparison to satisfaction, the professor is satisfied, but the clinical dental technicians were generally dissatisfied (p<0.05). Conclusion: Based on the results of this study, Current is necessary to analyze the practical test. It also should be compared with foreign institutions. Long-term and short-term improvement examination system that can be applied to the improvement of the dental technician to draw practical test it is necessary to improve the system.

• 대한치과기공학회지
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• 제40권1호
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• pp.33-40
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• 2018

Purpose: The purpose of this study was to investigate the influence of mechanical properties of various ultra-dental stone by setting methods. Methods: 240 cylinder specimens($10mm{\times}20mm$) were prepared from three ultra-dental stones(Gemma, Die keen and Fuji rock; n = 80) in accordance with the manufacturers' recommendations. Half of the specimens of each stone(n = 40) were dried in open air within a room temperature; the other half(n = 40) underwent in a silicone rubber mold in open air for 30 minutes and then were dried in a microwave oven for 10 minutes to 600W. Compressive strength(CS), compressive modulus(CM) and diametral tensile strength(DTS) conducted until fracture using Instron 5966 at each of the following periods: 1 and 24 hours from mixing. One-way analysis of variance and Scheffe's post hoc test were performed for statistical comparisons at a significance level of P<.05. Results: The CS and CM values in all dental stone indicated highest after 24h(54.25 MPa < ) than the values for specimens dried in microwave method. The DTS values revealed the highest microwave method. However, in 24h, FJ(Fu-ji rock) and GM(Gemma) had lower mechanical properties than air. Conclusion : Within the limitations of this study, CS did not influence by microwave method but DTS affected according to the setting.

• 대한치과기공학회지
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• 제40권4호
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• pp.273-281
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• 2018

목적: 본 연구는 실무 현장과 교육 현장의 조사를 통한 종합적인 의견을 수렴하여 합리적인 치과기공사 양성 및 배출을 위한 개선안을 도출하고자 한다. 방법: 3회에 걸쳐 설문조사가 진행되었으며, 1차는 개방형 문항으로 조사되었고, 2차, 3차는 폐쇄형 문항으로 조사되었다. 델파이 조사를 위한 조사 인원 선정을 100명(정책집단: 20명, 교육집단: 20명, 임상가 집단: 60명)으로 지정하였다. 1차 개방형 조사결과를 토대로 2차 설문문항을 작성하였으며, 2차 설문조사 결과를 토대로 3차 설문문항을 작성 후 조사하였다. 수집된 자료의 분석은 통계패키지 프로그램 SPSS Ver. 21.0를 활용하여 델파이 기법(Delphi Method)을 활용한 연구 결과에서 전문가 집단의 의견을 수렴하기 위해 빈도분석과 기술통계분석을 실시하였다. 결과: 현 교육체계의 문제점은 임상현장과의 차이와 실무능력저하, 국가시험위주의 교육이 문제점으로 대두되었으며, 현행 평가제도의 문제점은 임상현장을 충분히 반영하지 못한 점, 실무능력이 미 반영된 실기평가로 지적되었다. 결론: 결론적으로 치과기공사의 교육과정과 평가제도는 현실적인 내용을 고려하면서 임상 실무와의 연계성을 높이는 방향으로 개선되어야 할 것으로 사료된다.

• 대한치과기공학회지
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• 제41권4호
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• pp.337-345
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• 2019

Purpose: The purpose of this study was to enhance curriculum satisfaction of dental laboratory technology and curriculum demands. Methods: From March 5 to March 31, 2019, a self-written questionnaire was conducted for 195 students from the department of dental laboratory technology at a university in Gangwon-do. The analytical methods used were descriptive statistical analysis, frequency analysis, cross analysis, correlation analysis and reliability analysis. The collected data was used for SPSS 18.0 for Windows statistics program. Results: The demand of the school education includes systematic experiments and demand of practical training, acquisition of professional knowledge, introduction of advanced technology curriculum, reduction of national examination-oriented curriculum, and increased professionalism and professionalism as professional professionals. Investigated by the ethics. In addition, they were strongly aware of the necessity of digital education related to CAD / CAM, and there was a high demand for how to operate programs, scanning and design. Conclusion: The curriculum needs to be reorganized to cultivate dental technicians in a changing era, and in-depth centralized curriculum in fields with high practical needs, as well as vocational and ethical views as professionals.

• 대한치과기공학회지
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• 제16권1호
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• pp.43-56
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• 1994

The object of this study is, after the dental technology department is developed into the three-year curriculum and so new curriculum is needed, to compare, analyze, and appreciate the two-year model curriculum that has been practiced in our country, to analyze the curriculum and national quality system practiced in the developed country like U. S. canada, Germany and Japan, and, on the basis of the result from the upper part and inquiry result in the dental technology faculty commity of the nationwide junior college, to establish the new curriculum that is suitable the condition of our dental technology department in the junior college. 1) Since the width of the education is broader after the dental technology department is developed into three-year curriculum from the two-year curriculum, the course of study connected with the dental technology is added. 2) The fundamental course is propounded and the practical course which is needed on the spot is assigned. 3) Since the importance of the practical education is understood time and unit of the experimental practice is extended. 4) The time control in the curriculum commected with the national examination is adjected. 5) On the basis of the actual experience, the actual course is propound and time and unit are added widely to uplift the adjustment of the current environment of the dental technology.

• 대한치과기공학회지
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• 제44권2호
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• pp.38-46
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• 2022

Purpose: This study aims to confirm the effect of clinical practice on dental technology students by comparing preclinical expectations and post-training satisfaction of dental technology students in Suwon-si, Gyeonggi-do during the coronavirus disease pandemic. Methods: This study included students enrolled in the Department of Dental Technology of D University in Suwon-si, Gyeonggi-do. The purpose of the study was explained in advance and 70 students agreed to participate in the survey. IBM SPSS Statistics version 18.0 was used for data analysis and the significance level was tested at p=0.05. Results: There were significant differences in clinical practice content, operation, institutional expectations, and satisfaction. Conclusion: Based on the differences in expectations and satisfaction in this study, schools, industries, and associations can study ways to increase satisfaction in terms of clinical practice content, operation, and institution to present directions for dental technology and clinical practice.

• 대한치과기공학회지
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• 제46권2호
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• pp.42-48
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• 2024

Purpose: The purpose of this study is to investigate the applications and prospects of big data in digital dental healthcare. Methods: The study included 30 participants in the dental field (dentists, technicians, professors, and graduate students). From June 25 to 30, 2023, the contents of the study were thoroughly explained, consent was obtained from the research subjects, and a questionnaire was administered via an internet service. The questionnaires of 28 participants who responded completely were used for analysis. The collected data were statistically processed using IBM SPSS Statistics ver. 22.0 (IBM). Results: The use of big data in digital dental healthcare, digital dental health system, mobile dental health, dental health analysis, and telehealthcare were all heavily surveyed, with an average score of 3.97 or higher on a 5-point Likert scale. The areas where big data can be utilized in digital dental healthcare are as follows. The utilization rate for three-dimensional digital product development via linkage with big data systems and industrial field manufacturing technology was found to be 4.11±0.67, and the analysis of trends by age in the occurrence of various oral diseases was found to be 4.00±0.98. Conclusion: In the future, research into the viability of big data's success in the medical data field, which is directly related to human life, is needed. Additionally, social policies and regulations regarding big data-related information and standards in dental healthcare are necessary.