The purpose of this study was to evaluate a clinical preventative care program, based on a dental hygiene process (accessment, diagnosis, planning, implementation, evaluation; ADPIE) in a dental clinic, by analyzing patient recognition, knowledge, practice, and satisfaction with respect to oral health. The collected data (in percentages) were analyzed Fisher's exact test and paired t-test using IBM SPSS ver. 21.0 (IBM Co., USA). This study demonstrated a significant difference in oral health knowledge, recognition, and practice before and after the clinical preventive care program (p<0.05). The results were significant in the individual preventive plan within the planning stage, and in the professional teeth cleaning implementation stage (p<0.05). This result can be attributed to the sympathy of the dental hygienist (p<0.05). There was a positive correlation between recommending dental checkups and regular checking of the (r=0.552, p<0.05), undergoing radiography (r=0.434, p<0.01), following an individual preventive plan (r=0.568, p<0.01), undergoing proximal machine teeth cleaning (r=0.437, p<0.05), following tooth brushing instructions (r=0.552, p<0.05), and the evaluation results (r=1.000, p<0.05). Our results demonstrate, that the clinical preventive care program, based on dental hygiene, is an effective program. Given the positive effect of dental revisits and patient recommendations promoting dental hygienists, it is hoped that this preventative program will be widely used.
Dental Clinics ; Dental Hygienists ; Diagnosis ; Hope ; Humans ; Oral Health* ; Oral Hygiene* ; Radiography ; Tooth

Torsades de pointes, a polymorphic ventricular tachycardia associated with prolonged QT interval, is a well-known life-threatening arrhythmia, which has been found to be induced by various causes such as drugs, electrolyte imbalances, and severe bradycardia. Cisapride is a gastrointestinal prokinetic drug, which is widely used to treat gastroesophageal reflux disease or other functional gastrointestinal disorders. Cisapride can cause torsades de pointes and cases of torsedes de pointes induced by cisapride have been reported in other countries. Cases of torsades de pointes associated with antihistamine drugs have been reported in Korea, however, cisapride-induced torsades de pointes case has not been reported. We report a case of 31 year-old female patient who experienced repeated loss of consciousness due to cisapride-induced torsades de pointes.
Adult ; Arrhythmias, Cardiac ; Bradycardia ; Cisapride* ; Female ; Gastroesophageal Reflux ; Gastrointestinal Diseases ; Humans ; Korea ; Tachycardia, Ventricular ; Torsades de Pointes* ; Unconsciousness

No abstract available.
Animals ; Cell Adhesion* ; Female ; Leiomyoma* ; Mice ; Myometrium* ; Neural Cell Adhesion Molecules*

The aim of this study was to evaluate the effectiveness of sealer placement in simulated root canal extensions. Forty resin blocks were attained from the Endo-training Bloc. In each block, the simulated root canal was made with #20, 08taper GT file. After each block was longitudinally split into two halves, a standardized groove was prepared on one canal wall of two halves to simulate the canal extensions with various irregularities. The two halves of each block were assembled and all simulated root canals were obturated by single cone method with AH26 sealer. Four different methods of sealer placement were used: group A, #20 K-file; group B, ultrasonic file; group C, lentulo spiral; group D, EZ-Fill bi-directional spiral. All obturated blocks were stored in 100% humidity at 37degrees C for 1 week. Using a low speed saw, each block was sectioned horizontally. Images of the sections were taken using a stereomicroscope at x 30 magnification and a digital camera. The amount of the sealer in the groove was evaluated using a scoring system, a higher score indicated better sealing effectiveness. The data was statistically analysed by Fisher's Exact Test. The sealing score was the lowest, specially at the middle area of canal extensions in group A, and that was statistically significant difference from other groups. In conclusion, the ultrasonic file, lentulo spiral and EZ-Fill bi-directional spiral were effective methods of sealer placement in simulated canal extensions. The K file was the least effective method, specially at the middle area of canal extensions.
Dental Pulp Cavity* ; Humidity ; Ultrasonics

BACKGROUND: Extended-spectrum beta-lactamases (ESBLs) confer resistance to extended-spectrum cephalosporin (e.g., cefotaxime, ceftazidime) and aztreonam. But the diversity of ESBLs results in various susceptibility profiles with different beta-lactams. To study the relative in vitro activities of various beta-lactams and non-beta-lactam antibiotics against the clinical isolates of ESBL-producing K. pneumoniae, we determined the MIC (minimum inhibitory concentration) of various antimicrobials. METHODS: Fifty-seven isolates of K. pneumoniae which produced ESBL and 63 isolates which did not produce ESBL from 3 university hospitals in Korea were tested. The MIC values of antimicrobials were determined by agar dilution method and detection of ESBL production was performed by double disk synergy test. RESULTS: The MIC values of beta-lactams against K. pneumoniae which produced ESBLs exhibited heterogeneous susceptability profiles. In differentiation of ESBL production, MIC value of 8 ug/mL (breakpoint of intermediate resistance) of ceftazidime was more sensitive and more specific than that of cefotaxime or aztreonam. MIC50 values of gentamicin, amikacin and ciprofloxacin against K. pneumoniae that produced ESBL were significantly higher than those against Non-ESBL producing isolates (P<0.001), suggesting that ESBL producing isolates are multi-drug resistant. CONCLUSION: The level of resistance to various beta-lactams of K. pneumoniae which produced ESBL was heterogeneous. ESBL-producing K. pneumoniae showed higher resistance to aminoglycoside and quinolone antibiotics. Ceftazidime was the most appropriate antibiotic to differentiate ESBL production.
Agar ; Amikacin ; Anti-Bacterial Agents* ; Aztreonam ; beta-Lactamases* ; beta-Lactams ; Cefotaxime ; Ceftazidime ; Ciprofloxacin ; Gentamicins ; Hospitals, University ; Klebsiella pneumoniae* ; Klebsiella* ; Korea ; Pneumonia

Background: Atomic bombs dropped on Hiroshima and Nagasaki in Japan in August 1945 were estimated to have killed approximately 70,000 Koreans. In Japan, studies on the health status and mortality of atomic bomb survivors compared with the non-exposed population have been conducted. However, there have been no studies related to the mortality of Korean atomic bomb survivors. Therefore, we aimed to study the cause of death of atomic bomb survivors compared to that of the general population. Methods: Of 2,299 atomic bomb survivors registered with the Korean Red Cross, 2,176 were included in the study. In the general population, the number of deaths by age group was calculated from 1992 to 2019, and 6,377,781 individuals were assessed. Causes of death were categorized according to the Korean Standard Classification of Diseases. To compare the proportional mortality between the two groups, the P value for the ratio test was confirmed, and the Cochran-Armitage trend test and χ 2 test were performed to determine the cause of death according to the distance from the hypocenter. Results: Diseases of the circulatory system were the most common cause of death (25.4%), followed by neoplasms (25.1%) and diseases of the respiratory system (10.6%) in atomic bomb survivors who died between 1992 and 2019. The proportional mortality associated with respiratory diseases, nervous system diseases, and other diseases among atomic bomb survivors was higher than that of the general population. Of the dead people between 1992 and 2019, the age at death of survivors who were exposed at a close distance was younger than those who were exposed at a greater distance. Conclusion Overall, proportional mortality of respiratory diseases and nervous system diseases was high in atomic bomb survivors, compared with the general population. Further studies on the health status of Korean atomic bomb survivors are needed.

Background: Chronic exposure to low-dose persistent organic pollutants (POPs) can induce mitochondrial dysfunction. This study evaluated the association between serum POP concentrations and oxygen consumption rate (OCR) as a marker of mitochondrial function in humans and in vitro cells. Methods: Serum concentrations of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were measured in 323 adults. The OCRs of platelets and peripheral blood mononuclear cells (PBMCs) were assessed in 20 mL of fresh blood using a Seahorse XF analyzer. Additionally, the in vitro effects of Arochlor-1254, β-hexachlorocyclohexane, and p,p´-dichlorodiphenyltrichloroethane at concentrations of 0.1 pM to 100 nM were evaluated in human platelets, human PBMCs, and Jurkat T-cells. Results: The association between serum POP concentrations and OCR differed depending on the cell type. As serum OCP concentrations increased, basal platelet OCR levels decreased significantly; according to the OCP quintiles of summary measure, they were 8.6, 9.6, 8.2, 8.0, and 7.1 pmol/min/μg (P trend=0.005). Notably, the basal PBMC OCR levels decreased remarkably as the serum PCB concentration increased. PBMC OCR levels were 46.5, 34.3, 29.1, 16.5, and 13.1 pmol/min/μg according to the PCB quintiles of summary measure (P trend <0.001), and this inverse association was consistently observed in all subgroups stratified by age, sex, obesity, type 2 diabetes mellitus, and hypertension, respectively. In vitro experimental studies have also demonstrated that chronic exposure to low-dose POPs could decrease OCR levels. Conclusion The findings from human and in vitro studies suggest that chronic exposure to low-dose POPs can induce mitochondrial dysfunction by impairing oxidative phosphorylation.

A variety of pulmonary complications, including infection and neoplastic and inflammatory diseases, commonly develop in patients with acquired immunodeficiency syndrome. Nonspecific interstitial pneumonitis, one such complication, is not uncommon, and is very difficult to differentiate, clinically and radiologically,from Pneumocystis carinii pneumonia. We describe a case of nonspecific interstitial pneumonitis, including the chest radiographic and HRCT findings, occurring in an AIDS patient and involving complications.
Acquired Immunodeficiency Syndrome* ; Humans ; Lung Diseases, Interstitial* ; Pneumonia, Pneumocystis ; Radiography, Thoracic

Streptococcus Gallolyticus subspecies pasteurianus is a biotype II/2 of Streptococcus bovis. Although there is a clear correlation between Streptococcus bovis bacteremia and the risk of developing colon cancer, the relationship between Streptococcus gallolyticus subspecies pasteurianus bacteremia and colon cancer is not clear. We report a 53-year-old female who initially presented with fever and low back pain. Streptococcus gallolyticus subspecies pasteurianus was isolated in blood cultures, so we performed a colonoscopy and discovered colon cancer.
Bacteremia* ; Colon* ; Colonic Neoplasms* ; Colonoscopy ; Female ; Fever ; Humans ; Low Back Pain ; Middle Aged ; Streptococcus bovis ; Streptococcus*

Malignant epithelial neoplasm usually occurs in postmenopausal women, with less than 10% of cases occurring in women under the age of 20. In patients below this age, the majority of ovarian tumors are of germ cell origin and malignant ovarian epithelial tumors are uncommon. We report US & CT imaging in a case of mucinous cystadenocarcinoma in a 17-year-old nullipara who complained of amenorrhea for 45 days and a palpable mass.
Adolescent* ; Amenorrhea ; Carcinoma ; Cystadenocarcinoma, Mucinous* ; Female* ; Germ Cells ; Humans ; Mucins*