1.A STUDY THE SHADE CHANGE OF SEVERAL KINDS OF ALL CERAMIC CROWNS USED FOR METAL DOWEL CORE.
Sung Il HUR ; Heon Song LIM ; Ju Hwan LIM ; In Ho CHO
The Journal of Korean Academy of Prosthodontics 2001;39(5):477-491
The purpose of this study is to compared and analyze the shade changes(deltaE)about In-Ceram(R),IPS-Empress(R),OPC(R) by using of the spectrophotometer arising from initial status and before and after cementation of the resin cement mounted on the metal core. We used a couple of statistics such as 'One-Way ANOVA'and Multiple Range Test. We could be able to verify significantly what is being discussed here up to 95%. The results drawn from our research are as follows: 1. At the time of our experiments regarding the initial shapes of all-ceramic and mounting status of all-ceramic on the metal crown(deltaE1), and a comparison of mounting of all ceramic on the metal crown with all-ceramic cemented on the metal core(deltaE2), at the time of shade change of initial shapes and after we cemented on the metal core. (1) no significant difference among all-ceramics was found. (2) no particular difference was found regarding the In-Ceram(R) (3) a significant difference between the deltaE1 and deltaE2 regarding the IPSS-Empress(R) was found (P<0.05). (4) a significant difference between the deltaE1 and deltaE2 regarding the OPC? was found (P<0.05). 2. When we compared the shade changes (deltaE) resulted from before and after the cementation on each of the parts involved of some all-ceramic . we could be able to find shape change increase from incisal third, middle third, and cervical third in that order in In-Cream(R)(spinell), IPS Empress(R) and OPC(R) all. In addition , we could be able to find a siginificant difference between cervical third and incisal third, middle third. (P<0.05) From what we have just seen, we might conclude that there is a significant shade change difference before and after the cementation with respect to IPS-Empress(R)and OPC(R). In addition, we could also be able to find more shade change difference at the cervical third rather than incisal third and middle third depending on the parts involved.
Cementation
;
Ceramics*
;
Crowns*
;
Resin Cements
2.Clinical Significance of Proteinuria in Pregnancy-Induced Hypertension.
Dong Ho KIM ; Young Il LEE ; Sung Jun YOON ; Sang Hoon LEE ; Do Hwan BAE ; Min HUR
Korean Journal of Obstetrics and Gynecology 2000;43(5):811-818
OBJECTIVE: Proteinuria is a major clinical manifestation as well as hypertension and generalized edema in pregnancy-induced hypertension(PIH) and it should be considered an important marker of perinatal outcome. We studied the impact of proteinuria on maternal and perinatal outcome according to the degree of urine protein in PIH. METHODS: Maternal urine protein and serum albumin levels were studied in 64 cases of PIH who were admitted to Department of Obstetrics and Gynecology, Pil-Dong Hospital, College of Medicine, Chung-Ang University for the period of 10 years from January 1, 1989 to December 31, 1998. RESULTS: Serum albumin level was 2.9+/-0.7g/dL in mild preeclampsia group and 2.7+/-0.7g/dL in severe peeclampsia group and there was a significant difference between them. Birth weight of infant was 3001+/-659g in mild preeclampsia group and 2446+/-878g in severe peeclampsia group, and there was a significant difference between them. 1 minute Apgar score was 8.4+/-2.4 and 7.6+/-3.4, respectively and there was a significant difference between them. 5 minute Apgar score was 9.5+/-1.8 and 8.4+/-2.9, respectively and there was a significant difference between them. There were several maternal complications above 2(+) urine protein and no maternal complications below 1(+) urine protein. Small for gestational age infant was more common above 2(+) urine protein than below 1(+) urine protein and fetal death was more common in 3(+) urine protein. CONCLUSIONS: There was a decreasing trend in gestational weeks at delivery as proteinuria become more severe and also in birth weight, 1 minute Apgar score and 5 minute Apgar score. Maternal and fetal complications were more common as proteinuria become more severe.
Apgar Score
;
Birth Weight
;
Edema
;
Female
;
Fetal Death
;
Gestational Age
;
Gynecology
;
Humans
;
Hypertension
;
Hypertension, Pregnancy-Induced*
;
Infant
;
Obstetrics
;
Pre-Eclampsia
;
Pregnancy
;
Proteinuria*
;
Serum Albumin
3.Three cases of earty dyskeratoma.
Il Joo LEE ; Won HUR ; Sung Ku AHN ; Won Soo LEE ; Soo Chan KIM ; Seung Hun LEE
Korean Journal of Dermatology 1992;30(4):564-568
Warty dyskeratoma is a rare, well-circumscribed epidermal tumor that frequently aries as a single lesion on the skin of the head or neck of middle aged or older persons. Its histopathological features include : suprabasilar clefting with villous proliferations of the connective tissue papillae into the clefts ; acantholytic and dyskeratoic epithelial cells,basilar hyperplasia, and hyperleratosis. We report three cases of warty dyskeratoma describing clinical and histochemical fea tures.
Connective Tissue
;
Head
;
Humans
;
Hyperplasia
;
Middle Aged
;
Neck
;
Skin
4.Marfan's Syndromne.
Hong Joo HAN ; Byung Il PARK ; Hyun Sung OH ; Dong Ok HUR
Journal of the Korean Ophthalmological Society 1971;12(4):207-213
Five cases of Marfan's Syndrome were presented. The syndrome first described by Marfan (1896) is not a common condition. We experienced recently 5 cases of it. 3 cases of these occured in a family, and the others were different. The youngest in this series was 11 year-old and oldest 56 years. Four were male and one was female. In all cases, the characteristics are the lens dislocation, visual disturbances and an elongation of the long bones. The cases developed in a family, rarely reported in the literature, so we reported it.
Child
;
Female
;
Humans
;
Lens Subluxation
;
Male
;
Marfan Syndrome
5.Does Painful Heels in Ankylosing Spondylitis Demonstrate Distinctive Features on Plain Radiographs: A Study of 104 Cases.
Tae Hwan KIM ; Seunghun LEE ; Il Hoon SUNG ; Sung Jae KIM ; Hyo Kyung SUNG ; Jae Seung HUR
Journal of Rheumatic Diseases 2017;24(2):93-98
OBJECTIVE: To investigate simple radiographic findings on painful heels in ankylosing spondylitis (AS). Heel radiography in most studies was from AS patients' non-painful heel. METHODS: Seventy AS patients (34 bilateral cases) with heel pain at the time digital radiographs were taken were studied. Standing lateral views (104 radiographs) of the heel were reviewed. Associations between radiologic abnormalities and disease duration and among various abnormal findings were analyzed. RESULTS: Ninety-six (93.4%) had radiographic abnormalities (82.7% in soft tissues/61.5% in bone). Abnormalities of bone only were observed in 9.6%, of the soft tissues only in 30.8%, and of both were 51.9%. These included Kager's triangle's blurring (77.9%), posterior soft tissue swellings near the Achilles tendon insertion (65.4%), obliterations of the retrocalcaneal recess (65.4%), erosions of the superior pole of the posterior calcaneus (31.7%), subplantar irregular spurs (20.2%), posterior traction spurs (16.3%), subplantar erosions (14.4%) and cortical thickenings of the inferior calcaneal body (5.8%). There was a significant association between swelling in the posterior soft tissue and obliteration of the retrocalcaneal recess (p<0.001). CONCLUSION: Digital radiography in AS is useful for observing not only bony lesions but also soft tissue abnormalities of the heel, particularly of the posterior heel. For assessing the symptomatic enthesitis of the Achilles, this simple and quick diagnostic tool is valuable when examining for soft tissues' alterations of the posterior heel.
Achilles Tendon
;
Calcaneus
;
Heel*
;
Humans
;
Radiographic Image Enhancement
;
Radiography
;
Spondylitis, Ankylosing*
;
Traction
6.Adrenal Cortical Adenoma Associated with Spinal Epidural Lipomatosis and Paraplegia.
Il Whan KIM ; Chul Hoe KOO ; Jae Sun PARK ; Sung Uhn BAEK ; Sung Do LEE ; Kyu Ho LEE ; Jae Do KIM ; Bang HUR ; In Sun JUN
Journal of the Korean Pediatric Society 1986;29(7):86-92
No abstract available.
Adrenocortical Adenoma*
;
Lipomatosis*
;
Paraplegia*
7.Expression of Angiopoietin-1 and Angiopoietin-2 mRNA in Eutopic and Ectopic Endometrium.
Ji Young LEE ; Seong Soo AN ; Byung Il YUN ; Sung Eun HUR ; In Sook SOHN ; Soo Nyung KIM
Korean Journal of Obstetrics and Gynecology 2004;47(6):1171-1178
OBJECTIVE: To investigate the mRNA expression of Angiopoietin (Ang)-1 and Ang-2 in ectopic and eutopic endometrium from women with or without endometriosis throughout the menstrual cycle. METHODS: Total RNA was extracted and reverse transcribed into cDNA. The expression of Ang-1 and Ang-2 was examined by quantative competitive PCR (QC PCR) and each result was analyzed by Kruskal- Wallis analysis and Mann-Whitney U-test. RESULTS: The expression of Ang-1 mRNA was statistically significantly higher in endometrium of follicular phase from women with endometriosis compared to that from normal ones in the follicular phase. Endometriotic tissues expressed significantly lower Ang-2 mRNA compared to endometrium from women without endometriosis. CONCLUSION: We suggested that the expression of Ang-1 mRNA could be associated with the pathogenesis of endometriosis and might have a role as neovascularizaton and survival of ectopic endometrium.
Angiopoietin-1*
;
Angiopoietin-2*
;
DNA, Complementary
;
Endometriosis
;
Endometrium*
;
Female
;
Follicular Phase
;
Humans
;
Menstrual Cycle
;
Polymerase Chain Reaction
;
RNA
;
RNA, Messenger*
8.Pylephlebitis as a Complication of Acute Appendicitis.
Hoon HUR ; Gi Young SUNG ; Do Sang LEE ; Wook KIM ; Il Young PARK ; Jong Man WON
Journal of the Korean Surgical Society 2003;64(2):180-183
Pylephlebitis is defined as septic thrombophlebitis of the portal vein or one of its tributaries, and is usually secondary to an infection in the region drained by the portal venous system. Pylephlebitis is extremely rare today but high mortality still persists. It is a severe complication of acute appendicitis and other intraabdominal and pelvic infections. The patient presents with high fever, chills, leukocytosis, altered liver function, and sometimes jaundice. We describes two cases of pylephlebitis with acute appendicitis. One patient had pylephlebitis with multiple liver abscess and the other had superior mesnteric vein thrombi without liver abscesses. Both the patients had favorable outcomes with medical and surgical therapy. The early diagnosis and treatment with the timely administration of antibiotics and surgical therapy is most important for pylephlebitis.
Anti-Bacterial Agents
;
Appendicitis*
;
Chills
;
Early Diagnosis
;
Fever
;
Humans
;
Jaundice
;
Leukocytosis
;
Liver
;
Liver Abscess
;
Mortality
;
Pelvic Infection
;
Portal Vein
;
Thrombophlebitis
;
Veins
9.Functional Change of the Endothelial Cells of the Umbilical Vein Following Anoxia and Reoxygenation.
Do Sang LEE ; Jong Il HUR ; Gi Young SUNG ; Moo Hyung SONG ; Wook KIM ; Il Young PARK ; Jang Sang PARK ; Jong Man WON
Journal of the Korean Surgical Society 2000;58(1):17-28
BACKGROUND: Successful revascularization and reperfusion of ischemia are associated with high systemic complication rates and severe tissue injuries. Such complications with nonfunction are primarily related to the injuries that occur in the reperfusion process, but to date the exact mechanism is not clear. Anoxia or hypoxia and reoxygenation are principal components of ischemia and reperfusion (I/R) and have distinctive effects on the tissue. In the I/R injury model, endothelial cell injury is known to be an initial event, the microvasculature is highly sensitive, and the hyperadhesiveness of leukocytes to endothelial cells contributes to I/R-induced tissue injury. METHODS: Experimental groups were divided into 4 groups: a control group without any treatment, an anoxia group (A-G) treated with anoxic air (93% N2, 5% CO2, 2% H2) for 20 minutes, reoxygenation group (RO-G) treated with 100% O2 for 90 minutes, and a superoxide dismutase (SOD) group treated with SOD just before reoxygenation. Endothelial cells were isolated from human umbilical vein and cultured in an M-199 medium. Their purity was determined by immunofluorescent staining of factor VIII related antigen, phase-contrast, and scanning electron microscopy. Using a microelectrode, radio immunoassay, and Emzyme-linked immunosorbent assay (ELISA), we studied the time-course changes of the levels of nitric oxide (NO), prostaglandin I2 (PGI2), intercellular adhesion molecule-1 (ICAM-1), and vascular cell adhesion molecule (VCAM) of the 4 groups. RESULTS: 1) Endothelial cell detachment was found in the A-G and more detachment with lysis was found in the RO-G but no significant detachment and lysis were noted in the SOD group. 2) The concentration of NO in the A-G was lower than that of the control group (P<0.05). The NO concentration of the RO-G reached its highest level of 4809.01+/-444.69 nM/1x10(5) cells/ml at 30 minutes(P<0.005) and decreased after that. 3) The concentration of PGI2 in the A-G was higher than that of the control group (P<0.05). The PGI2 concentration of the RO-G reached its highest level of 64.25+/-2.39 pg/1x10(5) cells/ml at 45 minutes (P<0.005) and decreased after that. 4) The concentration of ICAM-1 in the A-G was higher than that of the control group (P<0.005). The ICAM-1 concentration of the RO-G reached its highest level of 7.18+/-0.62 ng/1x105 cells/ml at 15 minutes (P<0.005), then decreased to its lowest level of 2.53+/-0.31 ng/1x105 cells/ml at 60 minutes, but after 75 minutes increased again. 5) The concentration of VCAM in the A-G was higher than that of the control group (P<0.005). The VCAM concentration of the RO-G reached its highest level of 5.50+/-0.55 ng/1x10(5) cells/ml at 15 minutes (P<0.05), then decreased to its lowest level of 3.15+/-0.40 ng/1x10(5) cells/ml at 45 minutes, but after 60 minutes increased again. 6) The SOD group showed little change of NO, PGI2, ICAM-1, and VCAM concentration compared with both the A-G and the RO-G. CONCLUSION: This study showed that cell destruction in the reoxygenation group was more severe than that in the anoxia group and that the endothelial cell function of the reoxygenation group decreased signi ficantly compared with that of the anoxia group. In the anoxia and the reoxygenation groups, the levels of the two adhesion molecules ICAM-1 and VCAM increased faster than those of NO and PGI2 and the change in the level of ICAM-1 was more sensitive than that (in the level) of VCAM. In reoxygenation group, SOD treatment could inhibit the changes in the levels of NO, PGI2, ICAM-1, and VCAM.
Anoxia*
;
Endothelial Cells*
;
Epoprostenol
;
Humans
;
Immunoassay
;
Intercellular Adhesion Molecule-1
;
Ischemia
;
Leukocytes
;
Microelectrodes
;
Microscopy, Electron, Scanning
;
Microvessels
;
Nitric Oxide
;
Reperfusion
;
Reperfusion Injury
;
Superoxide Dismutase
;
Umbilical Veins*
;
Vascular Cell Adhesion Molecule-1
;
von Willebrand Factor
10.Radiation Dose Accuracy at the Isocenter: Standard Stereotactic Radiosurgery Technique Developed at Seoul National University Hospital .
Seong Soo SHIN ; Il Han KIM ; Sung Whan HA ; Charn Il PARK ; Wee Saing KANG ; Sun Nyung HUR
The Journal of the Korean Society for Therapeutic Radiology and Oncology 2002;20(4):391-395
PURPOSE: To confirm the accuracy of the radiation dose at the isocenter by the standard linear accelerator-based stereotactic radiosurgery technique which was developed at Seoul National University Hospital. MATERIALS AND METHODS: Radiation dosimetry was undertaken during standard 5-arc radiosurgery using 6 MV X-ray beam from CL2100C linac. The treatment head was attached with circular tertiary collimators of 10 and 20 mm diameter. We measured the absorbed dose at the isocenter of a multi-purpose phantom using two kinds of detector : a 0.125 cc ionization chamber and a silicon diode detector. RESULTS: The dose differences at each arc plane between the planned dose and the measured dose at the isocenter raged from -0.73% to -2.69% with the 0.125 cc ion chamber, and from -1.29% to -2.91% with the diode detector during radiosurgery with the tertiary collimator of 20 mm diameter. Those with the 10-mm tertiary collimator ranged from -2.39% to -4.25% with the diode. CONCLUSION: The dose accuracy at the isocenter was +/-3%. Therefore, further efforts such as modification in processing of the archived image through DICOM3.0 format are required to lessen the dose difference.
Head
;
Radiometry
;
Radiosurgery*
;
Rage
;
Seoul*
;
Silicon