This study was performed to evaluate the tensile bond strength and modulus of elasticity of three permanent soft denture liners (Molloplast B , Ufi Gel C , Tokuyama ) before and after thermocycling. And their water sorption were also evaluated. Each soft denture liner was bonded to PMMA denture base resin blocks and the tensile bond strength and modulus of elasticity were measured by using universal testing machine. For the water sorption, weight measured after immersion of soft denture liners in 37+/-1degrees C water bath for 4 weeks. The results were as follows : 1. Molloplast B had the highest tensile bond strength, while Tokuyama had the lowest tensile bond strength, There was no significant difference between Tokuyama and Molloplast B in the both nonthermocycling and thermocycling. There was significant difference in tensile strength of Tokuyama before and after thermocycling(p<0.05). 2. For the modulus of elasticity, there was no significant difference between Ufi Gel C and Tokuyama in the both nonthermocycling and thermocycling. There was significant difference in modulus of elasticity of Tokuyama before and after thermocycling(p<0.05). 3. The failure modes of Molloplast B and Ufi Gel C were nainley adhesive type and that of Tokuyama was mainly mixed type in case of nonthermocycling and cohesive type after thermocycling. 4. The water sorption of each soft liners was within+/-2% in times (p<0.05) but, there was no significant difference among the soft liners in times.
Adhesives ; Baths ; Denture Bases ; Denture Liners* ; Dentures* ; Elastic Modulus ; Immersion ; Polymethyl Methacrylate ; Tensile Strength ; Water

This study was performed to evaluate effect on color and opacity of 3 different copy-milled In-Ceram cores by glass infiltration and porcelain veneering. Color was evaluated by the CIEL*a*b* readings were recorded with a Colorimeter, Color difference value( E*ab) was calculated and opacity was represented by the contrast ratio. The variance of each color parameter (L*, a*, b*), color difference value, and opacity change after glass-infiltrated and veneered with porcelain was compared. Three experimental groups were fabricated as follows. Group 1 (Alumina core) : 15 Alumina blanks was infiltrated with originally marketed glass (A1) and veneered with porcelain(A1) Group 2 (modified Alumina core) : 15 Alumina blanks was infiltrated with its associated glass(S11) and veneered with porcelain(A1) Groups 3 (Spinell core) : 15 Spinell blanks was infiltrated with originally developed glass(S11) and veneered with porcelain(A1) The results were as follows: 1. After glass infiltration, L* value showed decrease, a* value showed decrease only group 1(p<0.001) and b* value showed increase on group 1, increase on group 1, increase on group 2, 3(p<0.001). 2. After porcelain veneering L* value showed decrease(p<0.001), a* value showed increase on group 1, decrease on group 2(p<0.05) and b* value showed decrease on group 1, increase on group 2, 3(p<0.001). 3. E* ab between before and after galss infiltration was more than 13.77, and between after glass infiltration and after porcelain veneering more than 19.63. 4. After glass infiltration and porcelain veneering, Alumina showed the lowest L*, a* value and highest b* value among 3 different groups (p<0.05). E*ab between group 1-2, 1-3 was higher than that of group 2-3. 5. After glass infiltation, opacity showed decrease, Group 1 had the highest opacity(p<0.05), but no significant differences between group 2 and 3. Above results suggest that glass infiltration and porcelain veneering effects on color and opacity of In-Cream core, and that modified In-Ceram Alumina uses single crowns of bridges like In-Cream Spinell.
Aluminum Oxide* ; Crowns ; Dental Porcelain ; Glass ; Reading

OBJECTIVE: Our purpose was to investigate the relationship between the levels of IL-6 and tumor necrosis factor-alpha in the peritoneal fluid of women with and without endometriosis and infertile women. METHODS: This study is prospective and case-control study in University hospital, enrolled thirty-four women with laparoscopic findings of minimal to severe endometriosis, and thirty-seven women with no visual evidence of pelvic endometriosis and with benign gynecologic disease. IL-6 and tumor necrosis factor-alpha levels in peritoneal fluid were determined using commercial ELISA. IL-6 and tumor necrosis factor-alpha concentrations were compared among women with and without endometriosis, and with infertile and fertile women, and then also compared according the revised American Fertility Society classification. RESULTS: IL-6 and tumor necrosis factor-alpha concentrations were higher than in the peritoneal fluid of women with endometriosis than in matched normal controls. Cyclic variations in IL-6 concentrations were seen in peritoneal fluid from patients with endometriosis: the concentrations in the secretory phase were significantly higher than those in the proliferative phase. The concentrations were higher than among of infertile women than in fertile women. A significant correlation between IL-6 and tumor necrosis factor-alpha concentrations and endometriosis stage III and IV was noted. CONCLUSION: Increased levels of IL-6 and tumor necrosis factor-alpha in patients with endometriosis in the peritoneal fluid may be relate to the pathogenesis of endometriosis suggesting that partially contribute to the disturbed immune regulation observed in patients with endometriosis.
Ascitic Fluid* ; Case-Control Studies ; Classification ; Endometriosis* ; Enzyme-Linked Immunosorbent Assay ; Female ; Fertility ; Genital Diseases, Female ; Humans ; Interleukin-6* ; Prospective Studies ; Tumor Necrosis Factor-alpha*

No abstract available.
Colitis, Ischemic* ; Colon*

Pain snd disability often fractures of the cslcaneus even though the original injury was skillfully treated. The causes are traumstic arthritis of the subtalar joint, abnormalities of the peroneal tendons or weakness of Gastrocnemius, etc. We have experienced the resection of lateral prominence of calcaneus in 7 patients who complained of pain by entrapment of peroneal tendons between lateral malleolus and lateral prominence of malunited calcaneus. The follow up time after operation was 3 years and 4 months to 12 months. In all patients the pain was markedly improved between postoperative 5 weeks and 10 weeks. When the last follow up, 6 patients among 7 patients except one case of subtalar arthritis were astisfaetory.
Arthritis ; Calcaneus ; Follow-Up Studies ; Humans ; Subtalar Joint ; Tendons

Accidents are important causes of death and disability in children. They also have enormous financial implications. Young children become an victim of accidents easily because of their physical fragileness and their coping behavior being vulnerable to any actions taken by accidents. Once they have a accident, the children whose not fully developed, suffer from devastating long-term after-effects. Lee, Lee, Kang and Han(1995) reported that ninety percent of accidents can be prevented. But there is no national system to manage, evaluate and analyse the information about child accidents, even though it is necessary for accident prevention policies and health promotion of the general public. The purpose of the study was to determine how often children have accidents and define the accident prevention strategies in children. The investigator conducted a descriptive study by performing the surveys, interviews, and workshops for the 2,458 young children, 10 teachers, and 1,494 parents. The data collection for the study began on September 2000 and completed on April 20, 2001. The analysis of the data was done with Window SPSS 10.0 for descriptive statistics. Among those children, 1,298 children(52.8%) injured from accidents. The children who had accident answered that they injured from traffic accident(27.3%), inside the home(26.3%), on the playground(17.0%), during playtime(13.6%), in the school(5.9%) and food poisoning(7.1%). To define accident prevention strategies for the school children, the parents and the teachers who had a special interest in this topic formed a special task force under the guidance of the investigator. The team was charged to prepare the basis of content materials by identifying the problems, setting standards for the program, prioritizing the process, and selecting the methods of implementation and evaluation. Eight issues and concerns identified by the team were: 1)allowing young children to learn undesirable habits and behaviors that would bother others without knowing; 2) not guarding young children from car accident; 3)unattended accident at playground; 4) considering home places safe; 5)unattended accident at school. These issues were found to be coinciding with the actual child accident cases occurred recent years in Korea. Greater efforts are required to reduce unnecessary deaths and disability from childhood accidents. This study gave a very useful and important data to prepare accident prevention educational program and to prepare accident prevention strategies.
Accident Prevention ; Adaptation, Psychological ; Advisory Committees ; Cause of Death ; Child* ; Data Collection ; Education ; Health Promotion ; Humans ; Korea ; Parents ; Research Personnel ; Child Health

No abstract available.
Dentures*

BACKGROUND: White coat effect (WCE) and white coat hypertension (WCH) are relatively prevalent in clinical situation (20 - 57% of WCH in the hypertensive population). The aim of this study was to analyze the determinant factors of WCE. METHODS: A prospective study was carried out in outpatient clinic in a consecutive hypertensives without receiving pharmacologic treatment. Twenty-four hour ambulatory blood pressure monitoring (ABPM) was performed following more than two resting blood pressure (BP) determinations carried out with the interval of 1 - 2 weeks by mercury sphygmomanometer. WCE was calculated for systolic and diastolic BP as the difference between a clinic BP (CBP) and an average daytime ambulatory BP (ABP). WCH was defined as;BP in the clinic > or = 140/90 mmHg with a mean daytime BP by ABPM < or =137/< or =89 mmHg. RESULTS: 1) Two hundred thirty-five patients (mean age 49.7 years, females 74%) were studied. Thirty-seven percent in male and forty-six percent in female patients fulfilled WCH criteria. 2) CBP was significantly correlated to daytime ABP (systolic BP;r=.47, p<.001 and diastolic BP;r=.65, p<.001). 3) The magnitude of WCE was greater in the group of WCH (28.9+14.6/19.3+6.9 mmHg) than ambulatory hypertensives (15.1+15.7/13.0+8.2 mmHg) (p<.001). 4) The magnitude of WCE is significantly correlated with female (r2=.12, p<.001) and the stage of CBP according to JNC-V (r2=.23, p<.001) in systolic BP, the stage (r2=.08, p<.001) in diastolic BP, and the stage (r2=.09, p<.001) and weight (r2=.15, p<.01) in mean BP. CONCLUSIONS: The magnitude of WCE in essential hypertension diagnosed at the clinic is significantly correlated with female, the magnitude of clinic BP, and weight.
Ambulatory Care Facilities ; Blood Pressure ; Blood Pressure Monitoring, Ambulatory ; Female ; Humans ; Hypertension* ; Male ; Prospective Studies ; Sphygmomanometers ; White Coat Hypertension

No abstract available.

Control of tuberculosis is threatened by widesread emergence of drug resistant Mycobacterium tuberculosis. Rifampin is a key component among therapeutic regimens for the tuberculosis; therefore patients in whom resistance to this drug develop have a poor outlook, particularly if rifampin resistance is associated with resistance to other tuberculosis drugs. The purpose of this study was to detect the mutation in rpoB gene of rifampin resistant M. tuberculosis in Korea and to evaluate the usefulness of the method in clinical aspects. A sample of 80 M. tuberculosis was studied, and it included 40 rifampin resistance isolates and 40 rifampin sensitive isolates by conventional methods. The detection method involved the amplification by polymerase chain reaction (PCR) of the Rif' region and the identification of mutations by single-strand DNA conformation polymorphism analysis (SSCP) of the amplification products (157 bp). Mutation were identified in 39 of 40 rifampin resistant isolates, and in 1 of 40 rifampin sensitive isolates.
Humans ; Korea ; Mycobacterium tuberculosis* ; Mycobacterium* ; Nucleic Acid Conformation ; Polymerase Chain Reaction* ; Rifampin ; Tuberculosis