The purpose of this study was to evaluate the effects of thermocycling on the shear bond strength of Co-Cr alloy to denture base resin. PMMA denture base resin such as heat-cured Vertex-RS , self-cured Vertex-SC and 4-META denture base resin such as heat-cured Meta-Dent , self-cured Meta-Fast was bonded to Co-Cr alloy. Samples were divided into 3 groups : no thermocycling group as control, thermocycling between 5degrees C and 55degrees C with 15 second dwell time as group 1, thermocycling with 1 minute dwell time as group2. The shear bond strength was measured and the interface between metal and resin was observed by SEM. The results were as follows. 1. The shear bond strength decreased significantly according to thermocycling and dwell time(P<0.001). 2. The bond strength of Co-Cr alloy and 4-META denture base resin was significantly higher than that of Co-Cr alloy and PMMA denture base resin(P<0.001). 3. IN SEM, there was no gap in control group, but there was much and large gap in group 1, 2. The longer dwell times, the lower bond strength. PMMA denture base resin had more gap than 4-META denture dwell times, the lower bond strength. PMMA denture base resin had more gap than 4-META denture base resin in the interface. These results revealed that thermocycling decreased the bond strength between Co-Cr alloy and denture base resin and dwell time of thermocycling changed the effect of thermocycling. The results suggested that oral temperature change affect the bond strength of prosthesis.
Alloys* ; Denture Bases* ; Dentures* ; Polymethyl Methacrylate ; Prostheses and Implants

No abstract available.

No abstract available.
Child* ; Humans ; Scrub Typhus*

No abstract available.
Catheterization, Central Venous* ; Central Venous Catheters* ; Jugular Veins*

PURPOSE: The objective of this study was to survey potential candidates for bariatric/metabolic surgery for procedure preferences. METHODS: Questions asked were divided into 5 categories: (1) demographic and anthropometric data, comorbidities, and favored surgery; (2) awareness of safety, effectiveness, and complications of each type of surgery; (3) discordances in opinion between self-selected and medically recommended procedures; and (4, 5) reasons for/against particular surgery. RESULTS: From 1 October to 15 November 2018, 104 respondents adequately responded and were included in the analysis. The number (%) of female respondents was 79 (76.0%). The number (%) of respondents by decade was 17 (16.3%) in their 20s, 65 (62.5%) in their 30s, 19 (18.3%) in their 40s, and 3 (2.9%) in their 60s, respectively. Mean body mass index was 37.1 ± 6.3 kg/m2. Comorbidities were type 2 diabetes in 34 (32.7%) and hypertension in 35 (33.7%). The most favored procedure was sleeve gastrectomy (SG) in 78 (75.0%), adjustable gastric band (AGB) surgery in 12 (11.5%), Roux-en-Y gastric bypass (RYGB) in 6 (5.8%), and gastric plication (GP) in 8 (7.7%). Major reasons for choosing procedures were; “adjustable” for AGB, “stomach sparing” for GP, “excellent weight loss” for SG, and “comorbidity resolution” in RYGB. CONCLUSION Candidates for bariatric/metabolic surgery favored SG followed by AGB, GP, and RYGB, and their choices were compatible with current evidence-based clinical practice.

Purpose: This study investigated the complications and patterns of implants that confronted with the extruded natural teeth. Materials and Methods: Among patients who received implant treatment between 2006 and 2018 at Chosun University Dental Hos-pital, only implants that had a maintenance period of at least 5 years and that both implants and confronting natural teeth could bemeasured and compared on a radiograph were selected. They were divided into two groups. Group 1, experimental group consisted of Implants confronting the extruded natural posterior teeth (n = 167: maxilla (Group 1max ) = 92, mandible (Group 1man ) = 75) and Group 2, control group consisted of Implants confronting the normal natural posterior teeth (n = 656: maxilla (Group 2max ) = 272, mandible (Group 2man ) = 384). Results: The incidence of complications between Group 1 and Group 2 was statistically significant. In particular, there was a statistically significant difference between the frequency of marginal bone loss and the amount of marginalbone loss. Conclusion The extruded natural tooth may cause more frequent complications including bone resorption in the oppos-ing implant.

BACKGROUND: Generally, for patients with cancer, chronic disease, burn injury or pediatric patients to whom oral medication is difficult or whose vessels are fragile, it is difficult to inject analgesics parenterally. To know the effect of subcutaneous infusion which would be directly used by patients themselves or their care givers, we compared subcutaneous patient-controlled analgesia (SQ PCA) with intravenous patient-controlled analgesia (IV PCA) morphine for acute postoperative pain. METHODS: We undertook a study to prospective, randomized, controlled patients (n = 30) undergoing elective total hysterectomy to compare SQ PCA with IV PCA morphine for postoperative pain control. We prepared a 5 mg/ml solution of morphine for the SQ PCA group (n = 15) and a 1 mg/ml solution of morphine for the IV PCA group (n = 15). The regimen of morphine was a basal rate 20 microgram/kg/h, 1 mg bolus, 10 min lockout interval, 1 hour limit of 8 mg. We evaluated the VAS score at rest and at coughing after postoperative 6, 12, 18, 24, 30, 36, 42 and 48 hours, 6 hourly doses of morphine, total requirement of infused morphine for 48 hours and delivery to demand ratio. Side effects and satisfactory score were checked too. RESULTS: The Visual analogue scale (VAS) pain score at rest and with coughing, the 6 hourly doses of morphine, the total requirement of infused morphine for 48 hours, the delivery to demand ratio, side effects and the satisfactory score were not significantly different in the two groups (P<0.05). CONCLUSION: Thus SQ PCA morphine represents a clinically acceptable alternative to IV PCA in the treatment of postoperative pain control.
Analgesia, Patient-Controlled* ; Analgesics ; Burns ; Caregivers ; Chronic Disease ; Cough ; Humans ; Hysterectomy ; Infusions, Subcutaneous ; Morphine* ; Pain, Postoperative ; Passive Cutaneous Anaphylaxis ; Prospective Studies

Bromidrosis is a disorder characterized by rancid body odor which influences a patient's social life and mental health. The therapeutic modalities and the mechanism of bromidrosis have been carefully studied, however, there have been few reports about the genetic inheritance of bromidrosis. We investigated the family history of 42 patients who were operated on for bromidrosis and followed up to the third generation in 10 cases. The results were as follows: Results of investigation which were followed up the second generation. The fathers of five patients and the mothers of 11 patients had bromidrosis in 18 male patients. The fathers of six patients and the mothers of 12 patients had bromidrosis in 24 female patients. Thirty-four patient (81.0%) among a total of 42 have a single parent with bromidrosis. Result of investigation which were followed up to the third generation Bromidrosis was occurred in 17 of 42 patients (40.5%) in the second generation, and 18 of 27 patients (66.7%) in the third generation. In one case, a father transmitted bromidrosis to his three sons, and as a result, X-linked inheritance could be ruled out Bromidrosis was not skipped in every generation of all families. We on conclude that bromidrosis is an autosomal dominant inherited disorder.
Fathers ; Female ; Genes, X-Linked ; Humans ; Male ; Mental Health ; Mothers ; Odors ; Single Parent ; Wills*

Hemophilia is a serious rare disease that requires continuous management and treatment for which the medicine is costly at the annual average of 100 million KRW for an individual. The aim of this study was to investigate trends in the utilization of coagulation factor (CF) used for hemophilia treatment using the National Health Insurance database from 2010 to 2013 in Korea and compare the utilization of CF with other countries. The consumption of CF per capita (IU) in Korea was not more than other countries with similar income to Korea. However, CF usage per patient IU was higher because the prevalence rate of hemophilia in Korea was lower than in other countries while the number of serious patients was much more. Therefore, it is difficult to say that the consumption of hemophilia medicine in Korea is higher than that in other countries. The consumption and cost of hemophilia medicine in Korea is likely to increase due to the increased utilization of expensive bypassing agents and the widespread use of prophylaxis for severe hemophilia. Even during the research period, it increased slightly and other countries show a similar trend. Thus, hemophilia patient management should accompany active monitoring on the health and cost outcomes of pharmaceutical treatment in the future. This study is expected to contribute to further insight into drug policies for other countries that face similar challenges with high price pharmaceuticals.
Adolescent ; Adult ; Aged ; Blood Coagulation Disorders, Inherited/*drug therapy/*economics/pathology ; Blood Coagulation Factors/*therapeutic use ; Child ; Child, Preschool ; Databases, Factual ; Female ; Humans ; Infant ; Infant, Newborn ; Male ; Middle Aged ; National Health Programs/statistics & numerical data ; Republic of Korea ; Severity of Illness Index ; Young Adult

BACKGROUND: Norwegian scabies is a highly infectious disease characterized by crust formation, different from ordinary scabies, and is caused by Sarcoptes scabiei. After the patient in our case was diagnosed with Norwegian scabies, active measures were taken to prevent its transmission within the hospital. Methods: A 66-year-old female patient was admitted to the general ward of a university hospital on January 23rd, 2008 and 6 days later, she was found to have been infected with Norwegian scabies all over the body. For epidemiological investigation, those who had been in contact with the patient were identified and interviewed. The patient was advised to follow the contact precaution, and linen the patient used was cleaned thoroughly. The surrounding environment was decontaminated by applying surface disinfectant. Preventive cream against the Norwegian scabies was distributed to staff members and patients who had been exposed to the patient, and appointed a dermatologist to educate them on how to use of medicine, what the mechanism of the disease is, what cautions must be taken, and how to write an ex post facto report. RESULTS: After the confirmation of the 1st case, no additional cases have been reported in the hospital during the ensuing 2 months. Therefore, prompt prevention and infection control activities against Norwegian scabies can be thought to have been successful. CONCLUSION: Whena patient with an uncertain skin disease is admitted, pertinent measures must be taken from the moment the patient is admitted and contact precaution should be applied both to the patients and the staff members. When a scabies patient is detected in an institution, the medical staff must enforce as much active preventive measures as possible, and by doing so, there will be a better chance to prevent the outbreak of scabies in the hospital.
Aged ; Bedding and Linens ; Communicable Diseases ; Cross Infection ; Female ; Humans ; Infection Control ; Medical Staff ; Patients' Rooms ; Sarcoptes scabiei ; Scabies ; Skin Diseases