Background: The purpose of this study was to evaluate the association between metabolic syndrome and periodontal disease in Korean adults. Methods: This study analyzed the screening data of 12,686 adults aged ≥19 years, including demographic characteristics, lifestyle habits, and each component of metabolic syndrome, obtained from the sixth Korea National Health and Nutrition Examination Survey database. Periodontal health status was measured by the community periodontal index. Subjects with three or more risk factors were considered as having metabolic syndrome. The Rao–Scott chi-square test was performed to assess the relationships between demographic characteristics, lifestyle habits, components of metabolic syndrome, and periodontal disease. Logistic regression analysis was performed based on the complex sample to evaluate the relationship between metabolic syndrome and periodontal disease. Results: The prevalence of periodontal disease was higher among the subjects with advancing age, lower average household income and education level, those working in production, residents of eup-myeon areas, in past or current smoker, those with excessive alcohol consumption habit in a week, and reduced brushing frequency and the use of oral care products (p＜0.001).Each component of metabolic syndrome was associated with higher prevalence of periodontitis in the subjects with abnormal than in those with normal levels (p＜0.001). The prevalence of periodontal disease in subjects with metabolic syndrome was approximately 1.443 times higher than that in normal subjects (odds ratio,1.443; p＜0.001). Conclusion This study confirmed the association between metabolic syndrome and periodontitis in Korean adults, and further studies will be needed to determine the causal relationship between the two conditions.

OBJECTIVES: The purpose of this study was to evaluate abrasion of Icon(R) infiltrated, sound bovine enamel by using confocal laser scanning microscopy (CLSM) after toothbrush abrasion tests. METHODS: Sound bovine enamel specimens whose Vickers Hardness Number ranged from 280 to 320 were prepared. To measure abrasion, specimens were allocated to groups on the basis of tooth brushing stroke frequencies. Tooth brushing stroke frequencies were categorized into 5 groups: 1,800, 5,400, 10,800, 21,600 and 43,200 strokes. Both infiltration depth of Icon(R) and the abrasion depth were measured by CLSM. RESULTS: Mean infiltration depth of Icon(R) for sound bovine enamel was 98.6 microm. There was no statistically significant difference in enamel abrasion depth between groups with 5,400 strokes and 10,800 strokes, but the abrasion depth increased with further increase in tooth brushing stroke frequencies (P<0.001). The mean abrasion depth of resin infiltrated bovine enamel after 43,200 tooth brushing strokes was 17.45 microm. CONCLUSIONS: The magnitude of abrasion after 43,200 tooth brushing strokes, which corresponds to brushing 3 times a day for 4 years, was less than 20 microm. This result suggests that abrasion by tooth brushing would not be a clinical problem for resin infiltrated enamel.
Dental Caries ; Dental Enamel ; Hardness ; Microscopy, Confocal ; Stroke ; Tooth

The purpose of this study was to develop a dental communication course in dental hygiene schools that included theory, practice, and skill for effective dental communication. Thirty-six senior dental hygiene students in a dental hygiene school took a dental communication course and responded to a questionnaire. The instrument used in the study was a modified form of Kim's communication skill self-assessment sheet. The self-assessment questionnaire about communication competencies was administered before and after the class, and the difference between scores at each time point was analyzed using the Wilcoxon signed rank sum test. Among seven elements of dental communication competencies, the competency of “information gathering” was significantly improved (p=0.008). Students' scores on perception of the importance (p=0.019) and necessity (0.016) of a communication course significantly increased after the course. Competencies in communication are essential requirement for dental hygienists. This study showed the possibility of communication skill training. An objective evaluation tool regarding students' communication competencies should be developed. Further studies with larger samples size are needed to develop a standardized comprehensive communication course in dental hygiene schools.
Curriculum ; Dental Hygienists ; Health Communication ; Health Education ; Humans ; Learning* ; Oral Hygiene* ; Self-Assessment

Background: The purpose of this study was to analyze research trends in articles published in the Journal of Dental Hygiene Science over the past decade. Methods: From 2011 to 2020, 653 studies were reviewed using a keyword analysis. Contents such as academic classification, research type, research method, research topic, data collection method, data analysis method, and financial support were analyzed. Results: Analysis by school type showed 34.2% of clinical dental hygiene studies, 23.3% of educational dental hygiene studies, 22.8% of basic dental hygiene studies, 10.0% of other field studies, and 9.8% of social dental hygiene studies. By type of study, quantitative studies were the most common at 69.5%. Regarding data collection methods, 45.8% of the studies that used surveys were the most common. The subjects of the study were 20.1% experimental studies, 15.6% general adults, and 15.0% dental hygienists. Regarding the data analysis method, 49.3% of the studies that conducted frequency analysis were the most common. The total number of keywords was 2,390, with 107 (4.48%) being ‘dental hygienists.’ Next, oral health was the most common with 67 (2.80%) articles, followed by 31 for the elderly (1.30%), 25 for dental hygiene students (1.05%), and 24 for stress (1.00%). Conclusion For academic development of dental hygiene, it is necessary to explore the diversity of academic topics based on the results of this study. It is necessary to find a way to spread the research results so that the published research can be used for the academic development of dental hygiene.

'Takotsubo cardiomyopathy' or 'stress-induced cardiomyopathy' is a newly described clinical entity that's characterized by transient left ventricular apical ballooning and left ventricular apical dyskinesis in the absence of any angiographic feature of significant coronary artery disease. The cause of takotsubo cardiomyopathy is unclear, but catecholamines probably play a role in the genesis of takotsubo cardiomyopathy. We report here on two cases of takotsubo cardiomyopathy that occurred during ICU care.
Catecholamines ; Coronary Artery Disease ; Takotsubo Cardiomyopathy

PURPOSE: This study was aimed to examine whether tutor evaluation in the PBL course assesses different aspects of learning from what written examination assesses. METHODS: 89 medical students were assessed by Self-Directed Learning Readiness Scale (SDLRS) and Learning Orientation Scale (LOS) in March 2004. Their tutor evaluation and written examination scores in the 1st semester of 2004 PBL units were collected in August 2004. Data analyses were conducted using t-test, correlation analysis, and linear regression. RESULTS: SDLRS scores were significantly correlated with tutor evaluation scores, but not with written examination scores. Both schoolwork orientation and academic orientation scores on LOS were significantly associated with tutor evaluation and written examination scores. Tutor evaluation scores were explained significantly by all predictors, such as SDLRS, schoolwork orientation, and academic orientation scores. However, written examination scores were explained significantly by academic orientation only. CONCLUSIONS: Tutor evaluation in the PBL assessed student self-directed learning readiness and academic orientation, but written examination did not. The findings show a crucial possibility that tutor evaluation may overcome shortcomings of the written examination.
Education, Medical, Undergraduate ; Educational Measurement ; Humans ; Learning* ; Linear Models ; Problem-Based Learning ; Psychological Tests ; Regression Analysis ; Statistics as Topic ; Students, Medical

PURPOSE: This study aimed to inquire into the educational implication of peer evaluation in PBL in relation to the evaluation system. METHODS: 89 third and fourth-year medical students in PBL courses participated in this study. Descriptive statistics analysis and correlation analysis were performed. RESULTS: Based on the results of the interviews with all the forth-year students, the feedback method of peer evaluation was modified and the peer evaluation sheet was revised. On the new peer evaluation system, the percentages of indiscriminant scores were significantly lower than those on the previous system. Peer evaluation on the new evaluation system was positively related to tutor evaluation, written examination, and quizzes. Correlations between the peer evaluation scores each units were higher than those of the tutor evaluation scores. All third-year students within the bottom ten percent on the peer evaluation score failed to successfully complete that year. CONCLUSION: The peer evaluation with feedback based on faculty counseling and a user-friendly evaluation sheet can be used as an effective method for assessing student performance in PBL and to screen for maladjusted students.
Counseling ; Humans ; Problem-Based Learning* ; Students, Medical

BACKGROUND: Falls are the most frequent adverse events reported in hospitals. The aim of this study was to investigate the incidence rate and characteristics of falls in patients who used comprehensive nursing care service in National Health Insurance Service Ilsan Hospital. METHODS: Incidence rate of falls was investigated in patients using comprehensive nursing care service, from July 2013 to Jun 2017 and compared with those not using this service. The characteristics and risk factors for falls, and fall-related injuries were obtained. RESULTS: Among the 62,445 patients who used the comprehensive nursing care service for 4 years, total of 672 falls were reported. The incidence rate of falls per 1,000 patients-day was 1.15. The percentage of fall-related injuries was 26.9% and that of major injury was 2.2%. Although the incidence rate of all falls was slightly higher in patients using comprehensive nursing care service than those not using this service, falls-related injuries were not correlated with the implementation of this service. CONCLUSION: The falls could be more frequently detected and reported in comprehensive nursing care service, but there was no difference in fall-related injuries.
Accidental Falls ; Humans ; Incidence ; National Health Programs ; Nursing Care ; Nursing ; Risk Factors

Diabetic neuropathy is one of the most common complications of diabetic mellitus and has myriad clinical presentations. Amitriptyline is an effective drug for painful diabetic neuropathy, but has a wide variety of cardiovascular effects. We report a case of amitriptyline-induced ventricular tachycardia in a patient with painful diabetic neuropathy. A 48-year-old man with no history of heart disease was treated with amitriptyline for the past 2 months. The dosage of this drug was gradually increased and the maximal dose was 170 mg per day. Prior to administration of this drug, his chest X-ray and electrocardiogram were normal. On admission he complained of chest discomfort and palpitation for 3 days, but his vital sign was stable. The electrocardiogram showed a wide QRS complex with a rate of 170 beats per minute. The ventricular tachycardia was successfully treated with electrical cardioversion.
Amitriptyline* ; Diabetic Neuropathies* ; Electric Countershock ; Electrocardiography ; Heart Diseases ; Humans ; Middle Aged ; Tachycardia, Ventricular* ; Thorax ; Vital Signs

Background: The purpose of this study is to investigate the tooth whitening effect of Listerine Healthy White and provide effective management of extrinsic discoloration by comparing the whitening effects of existing whitening products. Methods: The included study four groups: those using whitening gel, whitening toothpaste, and Listerine Healthy White and a control using artificial saliva. Each group received 40 bovine tooth specimens, which were stained with commonly consumed tooth-coloring-inducing foods; black tea, black coffee, and instant noodles for 72 hours. The specimens were treated with tooth whitening materials for 5 weeks, after which the lightness (L*) was measured weekly using a spectrophotometer. Results: There was a significant difference in lightness among the groups between the 1st and 5th week of treatment for all tooth-coloring-inducing foods (p＜0.05). When comparing the changes in lightness values from before whitening to the 5th week of whitening for all tooth-coloring-inducing foods, the order of change was as follows: whitening gel, whitening toothpaste, Listerine Healthy White, and artificial saliva. Listerine Healthy White showed a significant whitening effect for all toothcoloring-inducing foods (p＜0.05). Particularly, changes in lightness values for specimens stained by black tea after 5 weeks of whitening were in the following order: whitening gel (21.72), whitening toothpaste (14.89), Listerine Healthy White (12.91), and artificial saliva (3.85). For specimens stained by black coffee, the changes in lightness values were in the following order: whitening gel (12.99), whitening toothpaste (9.66), Listerine Healthy White (7.91), and artificial saliva (3.12). Lastly, changes in lightness values for specimens stained by instant noodles were as follows: whitening gel (10.84), whitening toothpaste (9.85), Listerine Healthy White (7.71), and artificial saliva (2.61). Conclusion Listerine Healthy White exhibits continuous whitening effects over time, and for consumers seeking convenient ways to achieve tooth whitening effects at home, consistent use of Listerine Healthy White is recommended.