Relationship between Career Success Perception and Protean Career Management Behavior in Clinical Dental Hygienists / 치위생과학회지

Background@#Career success is the psychological achievement associated with an individual’s work. Protean career management behavior is the behavior of managing individual careers in order to achieve individual career goals. The purpose of this study was to clarify the career success of dental hygienists as perceived by clinical dental hygienists and to compare the relationship between career success and protean career management behavior. @*Methods@#Nationwide convenience samples of clinical dental hygienists were obtained; 354 people were surveyed online, and the data of 350 people were finally analyzed. The perception of career success of dental hygienists was assessed using a multiple response method. T-test, ANOVA, and χ2 tests were performed to investigate the differences and relationships between protean career management behavior and career success according to the general characteristics. @*Results@#Career success was recognized by clinical dental hygienists as “income”, “work proficiency”, “patient consultation”, “self-satisfaction”, and “recognition by superiors” in order. There were significant differences in protean career management behavior according to general characteristics (p＜0.05). Higher career management behavior was common in those higher in age, in married participants, in those with higher educational background, and in those with a higher career, better position, and more job change experience (p＜0.05). Among the variables of career success perceived by clinical dental hygienists, “work proficiency” had a significant effect on “career management behavior” (p＜0.05). “Work proficiency” and “recognition by superiors” were significant in “protean technological development behavior,” and they also influenced actual behavior (p＜0.05). @*Conclusion@#The relationship between dental hygienists’ career success and protean career management behavior was clarified. Dental hygienists performed career management behaviors to develop work ability and skills. In addition, the relationship between career management behavior and long-term employment was confirmed.

The Impact of Grit on University Student's Core Competency in Dental Hygiene Students / 치위생과학회지

BACKGROUND: Recently, competency-based education has been reorganized in the dental hygiene curriculum. In education, non-cognitive factors are emphasized. Grit, the non-cognitive ability to persevere to achieve an individual’s long-term goals, is emerging. This study aims to identify the degree of grit and core competencies in students and to investigate the relationship between them and the factors that affect these core competencies. METHODS: This study was conducted using 350 dental hygiene students who were randomly assigned a structured questionnaire to complete. The final analysis included 321 students. The survey contents evaluated grit, core competencies, and general characteristics. The difference in the degree of grit and core competencies in conjunction with the general characteristics of the subjects was analyzed using the t-test/Mann Whitney U-test and the ANOVA/Kruskal-Wallis H test. Multiple regression analysis was then conducted to determine the factors affecting the core competencies of the subjects. RESULTS: The difference of ‘grit’ according to general characteristics was statistically significant in ‘major satisfaction’, ‘relationship’, ‘perceived academic achievement’, ‘grade point average (GPA)’. The difference in ‘core competency’ according to general characteristics was statistically significant in ‘grade’, ‘department selection’, ‘major satisfaction’, ‘relationship’, ‘perceived academic achievement’, ‘GPA’. Among the sub-areas of ‘grit’, ‘perseverance of effort’ showed a high correlation with ‘core competency’ and was statistically significant. As a result of regression analysis, ‘major satisfaction’, ‘perceived academic achievement’ and ‘grit’ of dental hygiene students had a statistically significant influence on ‘core competency’. Meanwhile, ‘GPA’ was not seen to be statistically significant in ‘core competency’. CONCLUSION: Grit, a non-cognitive factor, had a statistically significant effect on core competency, while the effects on GPA, a cognitive factor, were not statistically significant. Among the sub-factors of grit, ‘perseverance of effort’ had a statistically significant effect on ‘problem-solving competency’ and ‘academic competency’, which are ‘core competency’ sub factors.

Analysis of Factors Affecting the Quality of Work Life of Dental Hygienists Based on the Culture-Work-Health Model / 치위생과학회지

This study investigated the relationship between the organizational culture, organizational support, organizational health, personal health, and quality of work life of dental hygienists and analyzed the factors affecting the quality of work life in order to identify ways to improve their quality of work life. A total of 320 dental hygienists completed a self-administered survey; after excluding data from 21 respondents, 299 responses were included in the analysis. Frequency analyses, t-tests, one-way analysis of variation (ANOVA), and correlation analyses were conducted. A path analysis was also conducted to confirm the causal relationships. The findings are as follows. First, there was a significant difference in several general characteristics of the organizational culture including years in the current job and the number of dental hygienists; organizational support including age and the number of dental hygienists; organizational health including years in the current job and annual salary; and personal health including annual salary. Second, the quality of work life showed a positive correlation with organizational culture, organizational support, personal health, and organizational health in that order. Third, the results of path analysis revealed that organizational culture had a positive effect on organizational support; organizational support and personal health on organizational health; organizational support on personal health; and organizational support and organizational health on quality of work life. In addition, organizational support and organizational health had a direct effect on the quality of work life, while organizational culture, organizational support, and personal health had an indirect effect. These results indicated existence of a relationship among organizational culture, organizational support, organizational health, personal health, and quality of work life. It is necessary to identify ways to improve the quality of work life of dental hygienists.

Motivational Interviewing Training Using Role Play in Dental Hygiene Students / 치위생과학회지

The purpose of this study was to develop a motivational interviewing (MI) training program to improve competency in communication and to effect the evaluated changes that would occur in dental students' counseling techniques as result of the training in the program. The study proceeded through the program via role-play practice, which was explained effectively during the MI program training process. A convenience sample of 43 fourth-year dental hygiene students was recruited. Twenty-two students were randomly assigned to the intervention group and 21 to the control group in the order of recruitment. The theoretical lecture was delivered over 3 hours and the practice was done in parallel by applying cases occurring in clinic settings. The practice was technical training, partner practice, and small group practice. The intervention group received three hour MI lecture while the control group received no lecture. Evaluation through role-play practice was separated according to “researcher's viewpoint,” “counselor's role viewpoint,” and “patient's role viewpoint.” The results of the analysis showed that the intervention group had higher MI skills and ability than the control group. Furthermore, program participants showed positive impressions to the MI training program. The use of coaching sessions improved the MI techniques and counseling skills of dental hygiene students learning MI. The effect of the application of the MI training program was that the MI training improved counseling skills and interviewing abilities. Moreover, continuous training and feedback enhanced MI techniques and core skills. Training using lectures in parallel with practice rather than education through theory alone improved students' techniques. Application of role play through the combined method of the MI program was confirmed by an effective training method.

Effects of Cellular 11β-hydroxysteroid Dehydrogenase 1 on LPS-induced Inflammatory Responses in Synovial Cell Line, SW982

11β-hydroxysteroid dehydrogenase 1 (11β-HSD1) catalyzes the conversion of inactive cortisone into active cortisol, which has pleiotropic roles in various biological conditions, such as immunological and metabolic homeostasis. Cortisol is mainly produced in the adrenal gland, but can be locally regenerated in the liver, fat, and muscle. Its diverse actions are primarily mediated by binding to the glucocorticoid receptor. SW982, a human synovial cell line, expresses 11β-HSD type 1, but not type 2, that catalyzes the conversion of cortisone to cortisol. In this study, therefore, we investigated the control of lipopolysaccharide (LPS)-induced inflammatory responses by prereceptor regulation-mediated maintenance of cortisol levels. Preliminarily, cell seeding density and incubation period were optimized for analyzing the catalytic activity of SW982. Additionally, cellular 11β-HSD1 still remained active irrespective of monolayer or spheroid culture conditions. Inflammatory stimulants, such as interleukin (IL)-1β, tumor necrosis factor (TNF)α, and LPS, did not affect the catalytic activity of 11β-HSD1, although a high dose of LPS significantly decreased its activity. Additionally, autocrine effects of cortisol on inflammatory responses were investigated in LPS-stimulated SW982 cells. LPS upregulated pro-inflammatory cytokines, including IL-6 and IL-1β, in SW982 cells, while cortisol production, catalyzed by cellular 11β-HSD1, downregulated LPS-stimulated cytokines. Furthermore, suppression of NFκB activation-mediated pro-inflammatory responses by cortisol was revealed. In conclusion, the activity of cellular 11β-HSD1 was closely correlated with suppression of LPS-induced inflammation. Therefore, these results partly support the notion that prereceptor regulation of locally regenerated cortisol could be taken into consideration for treatment of inflammation-associated diseases, including arthritis.

Validity and Reliability of Professional Identity of Dental Hygienists / 치위생과학회지

This study aimed to develop a measure of professional identity for Korean dental hygienists and to analyze the factors and characteristics of professional identity of these dental hygienists. In this study, 890 dental hygienists completed a self-administered survey. The final analysis was conducted with a total of 880 responses, excluding 10 questionnaires with unreliable responses and partial responses. A systematic literature review was conducted to establish the definition of professional identity, while content validity, exploratory factor, confirmatory factor, and reliability analysis were conducted to establish the constructive factors. Descriptive statistics, independent sample t-test, and one-way ANOVA were used to identify the level of each factor. Authors conceptualized the professional identity for Korean dental hygienists and item generation, item reduction, and questionnaire formatting. The developed measure of professional identity for dental hygienists consisted of five factors, with 15 items. “Sense of calling,”“need for academic capacity building,”“performance of delegated authority,”“compliance of code of ethics,” and “usage of professional organizations” were the constituent factors. Based on these factors, the level of professional identity was the highest in the “performance of delegated authority” and lowest in the “usage of professional organizations.” These finding indicated that dental hygienists with higher education levels have higher professional identity levels. The dental hygienists working at the general/university hospital had the highest level of professional identity. Thus, further research is needed to establish a model that consists of factors affecting and influencing the professional identity of dental hygienists.

Reliability and Validity of the Korean Version of Job Embeddedness for Measurement Tool of Dental Hygienist / 치위생과학회지

The purpose of this study was to investigate a reliability and validity of the Korean version for measuring tool the job embeddedness of dental hygienists. The survey was modified and revised to fit into Korean culture. A survey was conducted with 274 dental hygienists in dental clinics. The data was used for the analysis of the study, using PASW Statistics 18.0 and IBM SPSS AMOS 7.0. The factor analysis showed that the job embeddedness of the dental hygienists was composed of three elements, namely ‘organization fit’, ‘job connectivity’, and ‘personnel relationships’. The validity of the model examined by a confirmatory factor analysis satisfied most of the relevant requirements. All of the factors had the conceptual reliability and variant extracted index above the minimum requirements, ensuring reliability and concentrated validity. The Cronbach’s alpha shows a good reliability. In conclusion, it was proven that dental hygienist’s job embeddedness measurement tool has high validity and reliability. Further, this study could be used to improve dental hygienist’s long term working, and the growth stage of dental clinic.

Impact of Mother's Oral Health Literacy on Preschool Children's Oral Health Status and Behavior / 치위생과학회지

The purpose of this study was to examine how oral health literacy of mothers affect the oral health status of their preschool children. The subjects were 233 mothers and their preschool children who are between 5 and 6 years old. They were selected according to the convenience sampling method. The individual self-administered questionnaire was used for the mother's survey while the children were interviewed using structured questionnaire to examine their oral health status and behavior. According to study results, the number of decayed primary teeth and the number of decayed and filled primary teeth had a statistically significant negative correlation with the oral health literacy of the mother, the children's oral health knowledge, attitude and behavior (COHKAB), and the mother's oral health management behavior. Hierarchical multiple regression analysis was performed after including general characteristics variables, the COHKAB and the mother's oral health management behavior. Meanwhile, mother's oral health literacy had a statistically influence on children's oral health status. The higher the mother's oral health literacy level, the lower the number of decayed and filled primary teeth were. The findings suggest that efforts to improve the oral health status of preschool children should consider mother's oral health literacy as an important factor. Therefore, the effective intervention and education programs are necessary to enhance mother's oral health literacy.

The first year of preventive dental specialist / 대한구강보건학회지

No abstract available.

Harnessing of Programmed Necrosis for Fighting against Cancers

Chemotherapy has long been considered as one of useful strategies for cancer treatment. It is primarily based on the apoptosis that can selectively kill cancer cells. However, cancer cells can progressively develop an acquired resistance to apoptotic cell death, rendering refractory to chemo- and radiotherapies. Although the mechanism by which cells attained resistance to drug remains to be clarified, it might be caused by either pumping out of them or interfering with apoptotic signal cascades in response to cancer drugs. In case that cancer cells are defective in some part of apoptotic machinery by repeated exposure to anticancer drugs, alternative cell death mechanistically distinct from apoptosis could be adopted to remove cancer cells refractory to apoptosis-inducing agents. This review will mainly deal with harnessing of necrotic cell death, specifically, programmed necrosis and practical uses. Here, we begin with various defects of apoptotic death machinery in cancer cells, and then provide new perspective on programmed necrosis as an alternative anticancer approach.

Production and Assessment of Goat Antihuman Globulin Reagent / 대한수혈학회지

BACKGROUND: Since the 1960 s rabbit antihuman globulin reagent has been used widely. Recently most conjugate of enzyme immunoassay is produced from goat, and precise purification method is developed. Therefore we evaluated the commercial value of the goat antihuman globulin as a blood bank test reagent. METHODS: The human IgG was purified by protein-A gel, and injected into goat. The goat antihuman globulin was coupled by CNBr activated sepharose 4B-gel and purified by 0.2M glycine elution buffer. For verification of this reagent, commercial reagents(Ortho rabbit reagent & DiaMed Gel test) were used. RESULTS: The minimal concentration for detecting antibody of goat reagent was 9 ng/mL. The results of direct antiglobulin tests, with 400 samples collected from donated blood in CPDA-1, were all negative(false positive rate: 0%). With 613 samples collected from inpatients of Severance Hospital, the results were positive in 35 patients(positive rate:5.7%), and those results were in complete agreement with commercial reagent(concordance rate: Goat vs. Ortho :99.8%, Goat vs. DiaMed :98.4%). And with 30 samples of artificially prepared complement-coated RBC, the results were all negative. Indirect antiglobulin test showed higher agglutination score than commercial reagents. CONCLUSIONS: Goat reagent showed high sensitivity and specificity in comparison with rabbit reagent. Because false positive reaction was not observed in negative control samples, the heterophil agglutinin reaction, which was the major problem when the reagent was initially developed, might be excluded. In conclusion, goat reagent seems to be more economical than rabbit reagent because the former can be obtained in a large quantity and of high potency.