• Journal of the Korea Convergence Society
• /
• v.12 no.10
• /
• pp.113-120
• /
• 2021

This study was conducted to investigate the degree of major satisfaction, resilience and clinical practice satisfaction of dental hygiene students, and to find out factors affecting clinical practice satisfaction. A survey was conducted for students from the dental hygiene department with clinical practice experience, and a total of 256 questionnaires were finally analyzed. For data analysis, descriptive statistics, t-test, ANOVA, and multiple regression analysis were performed according to the purpose of the study. As a result of the study, it was found that relational of major satisfaction had a significant positive effect on the variables affecting clinical practice satisfaction. Based on these results, in order to improve clinical practice satisfaction, it is important to increase relationship satisfaction as a sub-factor of major satisfaction.

• Journal of Korean society of Dental Hygiene
• /
• v.22 no.2
• /
• pp.133-142
• /
• 2022

Objectives: This study was conducted by clinical dentistry hygienists to develop knowledge measurement tools and evaluate knowledge necessary to cope with emergencies related to systemic diseases occurring in dentistry. Methods: Basic questions were developed on the six most frequently occurring diseases in the dental office: diabetes, syncope, respiratory disease, coronary artery disease, cerebrovascular disease, and epilepsy. Fifty-eight preliminary questions were composed in a survey format through expert validation. The survey was then conducted on 290 dental hygienists to verify the composition validity and reliability. Factor and reliability analyses were performed using the SPSS 23.0 program, and the correct answer rate for each question was calculated. Results: 49 items of a total of 13 factors were adopted as the final items for signs, symptoms, prevention and treatment of five diseases. The question with the highest percentage of correct answers for each question was "Slowly set up the unit chair when raising the patient"(97.9%) during the prevention of unconsciousness and question with the lowest correct answer rate was "soft substances such as cloth should be put in the mouth to prevent trauma while the seizure persists" (16.6%). Conclusions: A total of 49 questions have been developed as tools to measure the knowledge of dental hygienists' first aid related to systemic diseases and it is expected that related curriculum can be operated or evaluated by using them.

• Journal of Korean society of Dental Hygiene
• /
• v.22 no.2
• /
• pp.93-105
• /
• 2022

Objectives: The purpose of this study was to develop operation management evaluation standards for efficient operation of practical courses conducted on campus and to verify validity and reliability. Methods: The draft evaluation criteria of this study were derived based on the CIPP program evaluation model, in order to verify the validity of the content, the Delphi survey was conducted targeting 30 dental hygiene professors and clinical field dental hygienists who had been in charge of practical education for more than 5 years. Main survey was conducted with 252 professors and clinical field dental hygienists in charge of practical education. Results: Through exploratory factor analysis, a total of 36 questions were confirmed with 7 factors. As a result of verifying the internal consistency of the final evaluation criteria, the degree of internal fit of the items in the entire domain was 0.914. Conclusions: According to the above results, the validity and reliability of the evaluation criteria for evaluating the operation and management of in-school clinical practice were verified to be appropriate, and it is thought that it can be used in follow-up studies related to the operation and management of the practice course in the future.

• Journal of Korean Society of Occupational and Environmental Hygiene
• /
• v.10 no.1
• /
• pp.170-178
• /
• 2000

Most of manufacturers try to produce the most efficient filter for respirators with the lowest breathing resistance. Filter performance depends on low penetration, i.e., high efficiency (%), and low pressure drop ($mmH_2O$). This study was performed to evaluate performance of respirator filters by quality factor ($q_F$) and suggest the direction for improvement of respirator filters of good quality in Korea. Two mechanical filters, S and K made in Korea, three filtering facepieces, S made in China, C made in Korea and M made in USA, which were widely used in the workplace, were selected and tested efficiency and pressure drop in accordance with flow rate, using with Automated Filter Tester Model 8110 (TSI, USA). The best quality factor within the same respirator filter categories was $0.0672cm^{-1}\;H_2O$ for mechanical filter S, $0.0698cm^{-1}\;H_2O$ for filtering facepiece M at flow rate of 32Lpm. Mechanical filter S would be the best suitable during heavy work since qulity factors decrease less sharply than any others as increased flow rates. It was necessary for mechanical filter S to lower pressure drop without increasing efficiency, but mechanical filter K should be increased efficiency and decreased pressure drop. While filtering facepiece M had the best quality performance of three ones, Sand C should get much higher efficiency and lower pressure for better performance.

• Journal of Korean Dental Hygiene Science
• /
• v.6 no.2
• /
• pp.25-35
• /
• 2023

Background: In order to emphasize the importance of clinical dental hygienists-led dental hygiene management processes for those with systemic diseases, we tried to identify systemic diseases affecting dental implants based on clinical data. Methods: In order to identify systemic diseases affecting dental implants, literature review was conducted from March 1 to May 31, 2023, and the search period was for research papers published in domestic and foreign academic journals from January 2000 to December 2020. Domestic databases used for search use RISS, Nuri Media(DBpia), and Korea Academic Information (http://www.papersearch.net ; KISS), while overseas databases searched Pubmed for dental implant failures, implants, systemic diseases, and Dental implant and system disease. Results: The cumulative survival rate of implants averaged 94.3 percent and the failure rate was 5.7 percent. Clinical analysis of systemic diseases related to implants accounted for the highest frequency with 13 (100.0%), followed by 8 (61.5%) studies on high blood pressure and smoking, 7 (53.8%) cardiovascular diseases, and 5 (38.5%). In addition, liver disease, thyroid abnormalities, blood abnormalities, organ transplants and infectious diseases were confirmed. Conclusion: Since unregulated systemic diseases are a risk factor for implant failure, clinical dental hygienists should continue to maintain healthy oral conditions by sharing information with patients during periodic preventive dental hygiene management processes such as dental hygiene assessment.

• The Journal of the Korean dental association
• /
• v.51 no.12
• /
• pp.637-642
• /
• 2013

Because the implant is regarded as a common treatment. It is clinically important that systemic and local risk factor of threatening peri implant mucosa should be considered during the process. The most risk factors are detected in clinical diagnosis, but it might be difficult and not clear to recognize systemic or combined factors. This article reviews risk factors of peri-implantitis. Local factors are biomechanics, periodontal soft tissue characteristics, infected site and oral hygiene. Systemic factors are alcohol, smoking and genetic traits.

• Culinary science and hospitality research
• /
• v.13 no.4
• /
• pp.164-177
• /
• 2007

The purpose of this study is to explore the relationship between the service of employees in the foodservice industry and their customers' satisfaction. The study surveyed 310 subjects who are the employees of companies in Busan, Ulsan, City and Gyeongsangnam-do and processed the result using SPSS for Win V. 12. 0. For statistical analysis, Frequency, Factor Analysis and Regression were put into operation. As a result of Factor Analysis on the quality of company food-service, six factors have been extracted. The result of the Factor Analysis of satisfaction revealed one factor. In conclusion, this study shows that the quality of foodservice - food, convenience, menu, kindness, hygiene/cleanliness, facilities - had a positive effect on users' satisfaction. It is expected that the results will provide a base for marketing strategies to be used by the managers and marketers in foodservice companies.

• Journal of dental hygiene science
• /
• v.13 no.2
• /
• pp.158-164
• /
• 2013

The most frequently encountered problems at fixture-implantation sites are lack of adequate bone and proximity to anatomic structures. It is generally accepted that growth factors play an essential role in the healing process and tissue formation, and they have become the focus of grafting materials research. The granules in platelets contain high concentrations of various growth factors. In particular, platelet-rich fibrin (PRF) is a second-generation platelet concentrate that allows the production of fibrin membranes enriched with platelets and growth factors from an anticoagulant-free blood harvest. This study investigated the in vitro effects of PRF on osteoblasts, in terms of the key cellular functions, and especially the effects on two growth factors, the homodimer of platelet-derived growth factor subunit B (BPDGF-BB) and transforming growth factor (TGF)-${\beta}1$, which are associated with wound healing and regeneration (i.e., proliferation and differentiation). The following parameters were investigated: PDGF-BB and TGF-${\beta}1$ levels in PRF, cell viability, alkaline phosphatase (ALP) activity, type 1 collagen synthesis, and the expressions of osteoblast differentiation markers (ALP and runt-related transcription factor 2) and bone matrix proteins (type 1 collagen). The release of autologous growth factors from PRF was maintained for a reasonable period of time, and exerted positive effects on the proliferation and differentiation of osteoblasts. The use of PRF thus appears to be a promising method for enhancing bone healing and remodeling.

• Journal of Korean society of Dental Hygiene
• /
• v.10 no.2
• /
• pp.297-310
• /
• 2010

Objectives : The purpose of this study was to verify the impact of the empowerment of dental personnels as one of variables affecting the performance of dental institutions and to seek ways of boosting their organizational productivity. Methods : The subjects in this study were dental personnels who worked in dental institutions. After three investigators were trained, a pilot survey was conducted from October 20 to November 20, 2009, and the questionnaire used in the pilot survey was finalized. The collected data were analyzed with a SPSS(Statistical Package for the Social Science) WIN 12.0 program. The findings of the study were as follows: Results: 1. The dental personnels investigated got 3.98 in meaningfulness, one of the empowerment factors. They found a meaning in their job when they performed it. 2. The dental personnels who were older were more excellent in self- determination and influence, and age made a significant difference to their empowerment. 3. The dental personnels who were better educated were more superior in terms of empowerment, and academic credential made a significant difference to their empowerment factors was statistically. 4. The dental personnels whose yearly salary was larger were more which were the factors of empowerment of each factor was statistically significant. 5. Dental health agency workers less than three years accounted for most of 152 people were working longer duration of empowerment as a whole was that each of the factor scores. Empowerment of each factor was statistically significant. 6. The dental hygienists made up the largest group among the dental institution employees, and the kind of occupation made a significant difference to meaningfulness, competency and influence, which were the factors of empowerment. 7. The greatest group of the dental personnels worked in dental clinics, and the dental hospital employees surpassed the dental clinic employees in competency, self-determination and influence. There was a significant difference in the influence factor according to the type of dental institutions. Conclusions : Thus, the dental personnels were more aware of the meaningfulness factor when their perception of the job-related empowerment was checked, and it indicated that most of them attached importance to meaningfulness during their job performance. But just employees who worked in dental institutions located in particular regions were examined, the findings might not be generalizable. In the future, more extensive research should be implemented, and the sorts of programs that could stir up empowerment among dental institution employees or bolster organizational empowerment should be developed.

• Journal of dental hygiene science
• /
• v.6 no.4
• /
• pp.243-249
• /
• 2006

The purpose of this survey research was to investigate the satisfaction and the factor of stress of 183 dental hygienic students for the dental clinical training who were at 3 colleges which were located in Incheon-city and Kyunggido. This survey was carried out from 12th of September to 19th of October and analyzed using SPSS WIN 12.0. As a result of analysis, the following conclusion were obtained. 1. 86.3% dental hygienic students for satisfaction for the major, 75.9% for training, and 91.8% for future occupation reflected as more than good. 2. In case of the factor of stress, Ideal and value was found out as $3.54{\pm}1.23$ and personnel relationship as $1.74{\pm}1.20$. 3. In case of satisfaction according to general characteristics, there were more or less significant differences according to motive of department choice (P = 0.003) for satisfaction of the major and motive of department choice (P = 0.036) for satisfaction of future occupation. 4. Correlation among each satisfactions showed as the more they were satisfied with the major, the more they were satisfied with training, moreover, they were also satisfied with future occupation. 5. For factor of stress affecting to satisfaction for training, role and ideal and value were showed as affecting variables.