1.Comparative study of surface roughness between several finishing and polishing procedures on ormocer-based composite resin and nanohybrid composite resin.
Suk In JEONG ; Nam Sik OH ; Myung Hyeon LEE ; En Jung LEE ; Jung Hyeon CHO ; Sung Won JI
The Journal of Korean Academy of Prosthodontics 2008;46(2):105-115
STATEMENT OF PROBLEM: Proper finishing and polishing enhance both the esthetics and the longevity of restored teeth. Blade finishing technique would be suited for smoothing and finishing. Evaluation of this technique are necessary. PURPOSE: The purpose of this study was to evaluate the blade finishing and polishing procedures on the surface profile and roughness of ormocer-based composite resin and nanohybrid composite resin. MATERIAL AND METHODS: The material included a ormocer-based composite resin (Admira(R) & Admira(R) Flow); a nanohybrid composite resin (Grandio(R) & Grandio(R) Flow). One hundred forty specimens of each group were prepared using a mylar strip and randomly divied into blade finishing and rubber polishing groups (n=10). The average surface roughness (Ra) in micrometers was measured and the surface profile was examined by scanning electron microscopy (SEM) (Magnification X 200). The data were analyzed by Mann-Whitney Test at 0.05 significance level. CONCLUSION: The results of this study indicated that the mylar strip produced the smoothest surface on all materials and among the finishing-polishing methods was not significanct difference (P>0.05). Ormocer-based flowable composite resin performedthe lowest variability in initial surface roughness among the tested materials.
Composite Resins
;
Esthetics
;
Longevity
;
Microscopy, Electron, Scanning
;
Polyethylene Terephthalates
;
Rubber
;
Tooth
2.Characteristic Sonographic Appearance of Normal Appendix in Children: Inner Hypoechoic Band without Folding.
Noh Hyuck PARK ; Soon Young SONG ; Eu Ja LEE ; Mi Sung KIM ; Chan Sup PARK ; Hwa En OH ; Geun Seok YANG
Journal of the Korean Radiological Society 2004;51(6):663-667
PURPOSE: To identify the characteristic ultrasonographic findings of the normal appendix in children in order to detect it more easily and so to exclude acute appendicitis from a diagnosis with more confidence. MATERIALS AND METHODS: Among 64 patients presenting with right lower quadrant pain, 44 patients, excluding 15 patients diagnosed as acute appendicitis and 5 patients with non-visualization of the appendix due to severe ileus and obesity, were evaluated for the point of incidence, the thickness and the presence of folding of the inner hypoechoic band of the normal appendix. The age of the patients ranged from 3 to 15 years with a mean age of 6.5 years. Two patients were operated on and we correlated the preoperative ultrasonographic findings with the histologic findings. RESULTS: In all the cases of the 44 patients with normal appendix, the inner hypoechoic band was discovered, which was seen as a linear structure without folding along the whole length of appendix. This measured as 0.75 mm (0.3-1.5 mm) for the mean thickness. The inner hypoechoic band corresponded to the mucosal layer that had abundant lymphoid tissue on the histologic examination. CONCLUSION:For the pediatric normal appendix, the inner hypoechoic band without folding is present, and this corresponds to the mucosal layer with abundant lymphoid tissue.
Appendicitis
;
Appendix*
;
Child*
;
Diagnosis
;
Humans
;
Ileus
;
Incidence
;
Lymphoid Tissue
;
Obesity
;
Ultrasonography*
3.Chaniopharyngioma in Children and Adults.
Dong Won KIM ; Sung Min PARK ; Jung Kyo LEE ; Man Bin YIM ; In Hong KIM ; En Sook CHANG
Journal of Korean Neurosurgical Society 1987;16(3):557-570
The authors studied 16 cases of craniopharyngioma who admitted to the Department of Neurosurgery of Dong San Medical center, Keimyung university, during the past 5 years from 1981 to 1985. Of these 16 cases, 9 belonged to a juvenile group with ages under 20 based on full pubertal development, and 7 cases belonged to an adult group. It was observed the difference between the age groups of the clinical, neuroradiogical and histopathopathological findings. Raised ICP symptoms were showed in juvenile group and decreased vision and visual field defect in adult group, respectivelly, as the chief complaint. All cases of the juvenile group were classified as juvenile type and three cases out of seven in the adult group were adult types in their histopathological pattern. Four juvenile types of adult group showed poor outcome. We concluded that subtotal resection with radiotherapy gave a better prognosis in both group and that hormone therapy before and operation decreased mortality and morbidity and improved the quality of survival significantly.
Adult*
;
Child*
;
Craniopharyngioma
;
Humans
;
Mortality
;
Neurosurgery
;
Prognosis
;
Radiotherapy
;
Visual Fields
4.Orthostatic Proteinuria with Nutcracker Phenomenon: Case Report.
Noh Hyuck PARK ; Soon Young SONG ; En Ja LEE ; Mi Sung KIM ; Byung Gil KIM
Journal of the Korean Radiological Society 2004;51(1):99-102
Orthostatic proteinuria has been recognized as a benign condition with a good prognosis and has not been associated with any underlying glomerular disease. The pathogenesis of orthostatic proteinuria is unclear. Recently, a few foreign reports suggested that the nutcracker phenomenon, which is known as a cause of asymptomatic hematuria, may also be a major cause of orthostatic proteinuria. We report a case of a 12-year-old female patient presenting only with orthostatic proteinuria, who was diagnosed as having nutcracker phenomenon by Doppler study and venography.
Child
;
Female
;
Hematuria
;
Humans
;
Phlebography
;
Prognosis
;
Proteinuria*
;
Renal Veins
5.An Adenosquamous Carcinoma of the Penis.
Ill Hyung JUNG ; Ki Wook KIM ; Won Ki LEE ; Soo Sung LEE ; Dae Yul YANG ; Sung Yong KIM ; Ha Young KIM ; En Suk NAM
Korean Journal of Urology 2003;44(1):102-104
An adenosquamous carcinoma of the penis is an exceedingly rare, highly malignant tumor, with histological features of a squamous cell carcinoma and an adenocarcinoma, which originates in the penile surface epithelium, and possibly in embryologically misplaced mucus glands of the perimeatal region of the glans mucosa. We report a case of an adenosquamous carcinoma of the penis in a 73-year-old man who had been suffering from a painful ulcerative mass on his penis for 2 years.
Adenocarcinoma
;
Aged
;
Carcinoma, Adenosquamous*
;
Carcinoma, Squamous Cell
;
Epithelium
;
Humans
;
Male
;
Mucous Membrane
;
Mucus
;
Penis*
;
Ulcer
6.A Case of Anuric Acute Renal Failure, Acute Hepatitis and Rhabdomyolysis occurred after Carp Bile Ingestion.
Gu Hyun KANG ; Geon Tae PARK ; Jun Whee SONG ; Ji En LEE ; Jae Gon WOO ; Sung CHO ; Sung Rok KIM
Korean Journal of Nephrology 2008;27(3):369-373
Gall bladder of a common carp is taken in some areas of Asia as a traditional medicine for improvement of their general health problems like hypertension, poor visual acuity, and impotence. Many cases have been reported on acute hepatitis, acute renal failure, gastrointestinal problems and neurological symptoms following ingestion of raw carp bile juice. We experienced a case of anuric ARF, acute hepatitis, and rhabdomyolysis that developed after indigestion of raw carp bile juice, not yet seen in previous studies. In this case, anuric state of patient was resolved after 4 days with continuous renal replacement therapy. Thus we report this case with review of literature.
Acute Kidney Injury
;
Asia
;
Bile
;
Carps
;
Dyspepsia
;
Eating
;
Erectile Dysfunction
;
Hepatitis
;
Humans
;
Hypertension
;
Male
;
Medicine, Traditional
;
Renal Replacement Therapy
;
Rhabdomyolysis
;
Urinary Bladder
;
Visual Acuity
7.Over-expression of Liver X Receptor-alpha(LXR alpha by TO901317 Exaggerated the Production of Mesangial Matrix.
Ho Jun CHIN ; Yan Yan FU ; Young Rim SONG ; En Sung LEE ; Yun Mi LEE ; Seong Gyun KIM ; Ki Young NA ; Suhnggwon KIM ; Dong Wan CHAE
Korean Journal of Nephrology 2010;29(2):189-197
PURPOSE: To provide the insight into the role of LXR alpha on the progression of diabetic nephropathy, we measured the production of extracellular matrix in the cultured mesangial cells treated with the LXR agonist. METHODS: With the mesangial cells extracted from C57BL6 mice, we cultured them in the presence of 25 mM glucose with or without TO901317, an agonist of LXRalpha We transfected siRNAs of SREBP1 and LXR alpha into the mesangial cell to suppress the activity of the two genes. RESULTS: TO901317 increased expressions of LXR alpha, SREBP-1, TGF beta-1, and collagen IV and triglyceride amount in mesangial cells cultured in 25mM glucose. These effects of TO901317 were attenuated by inhibiting transcription of LXR alpha or SREBP-1 with transfection of siRNAs. In mesangial cells transfected with siRNA of SREBP-1, changes by TO901317 were attenuated regardless of increased expression of LXR alpha. That suggested the activation of SREBP-1, an downstream gene of LXR alpha, would be more important to induce changes in mesangial cells by TO901317. CONCLUSION: The TO901317, an agonist of LXR alpha, increases extracellular matrix, collagen IV, and TGF beta-1 production in cultured mesangial cells. The SREBP-1 as well as dyslipidemia in mesangial cells enhanced by LXR agonist would be the important mechanism to induce those changes.
Animals
;
Collagen
;
Diabetic Nephropathies
;
Dyslipidemias
;
Extracellular Matrix
;
Glucose
;
Hypertriglyceridemia
;
Liver
;
Mesangial Cells
;
Mice
;
Orphan Nuclear Receptors
;
RNA, Small Interfering
;
Sterol Regulatory Element Binding Protein 1
;
Transfection
8.A Case of Glomus Tumor of the Stomach: Role of Endoscopic Ultrasonography.
Hyun Min SHIN ; Doo Yul RYU ; Ducky LEE ; Jong Hyung KIM ; Dong In HWANG ; Dong Joo LEE ; Seok En KIM ; Suk Joon PARK ; Sung Chul KIM
Korean Journal of Gastrointestinal Endoscopy 2000;21(5):855-858
A glomus tumor of the stomach is a rare submucosal lesion that was first described by De Busscher in 1948. Submucosal tumors of the stomach are mostly leiomyoma, leiomyosarcoma, and malignant lymphoma. It is difficult to diagnose this kind of tumor preoperatively. We present a patient with a gastric glomus tumor which showed the characteristic endoscopic ultrasonographic (EUS) finding. Our case was also diagnosed by pathology after surgery. The major EUS findings in the present case are circumscribed low echoic mass in the forth submucosal layer and an internal heterogenous echo mixed with high echoic spots. The EUS seems to be useful in distinguishing between glomus tumor and other submucosal tumors.
Endosonography*
;
Glomus Tumor*
;
Humans
;
Leiomyoma
;
Leiomyosarcoma
;
Lymphoma
;
Pathology
;
Stomach*
9.Infracoccygeal sacropexy for the management of prolapse uteri: Short term results.
Hyun Hee CHO ; Mee Ran KIM ; Sung Jin HWANG ; Min Jung KIM ; En Jung KIM ; Jin Woo LEE ; Jang Heub KIM ; Jin Hong KIM
Korean Journal of Obstetrics and Gynecology 2007;50(6):912-917
OBJECTIVE: To investigate the short term results of infracoccygeal sacropexy for the management of uterine prolpase or stump prolapse. METHODS: Thirty-four Women who underwent infracoccygeal sacropexy for the management of uterine prolapse or stump prolpase were enrolled this study. Intraoperative or postoperative complications and results of the operation were evaluated and the recurrence rate of pelvic organ prolapse was checked 6 months after operation. RESULTS: Changes of hemoglobin after infracoccygeal sacropexy was 1.7+/-0.9, mean duration of bladder drainage was 3.1+/-1.0 (days). After 2.1 days of operation, foley catheter was removed. Mean inpatient day was 5.2+/-1.0, patient discharged 3.2 days after operation. Recurrence rate after 6 months was 2.9%. Preoperative mean stage of prolapse was 2.7+/-0.7 (stage) and it decreased to 0.4+/-0.6 (stage) 6 months after operation. CONCLUSIONS: Infracoccygeal sacropexy was effective method for the management of uterine/ stump prolapse.
Catheters
;
Drainage
;
Female
;
Humans
;
Inpatients
;
Pelvic Organ Prolapse
;
Postoperative Complications
;
Prolapse*
;
Recurrence
;
Urinary Bladder
;
Uterine Prolapse
;
Uterus*
10.Comparison of Early and Mid-Second-Trimester Amniocentesis.
Hyun Kyong ANN ; Hyun Mee RYU ; Moon Young KIM ; En Sung KIM ; Ha Kyun SONG ; Hwan Kyoun LEE ; Jung Ryeol HAN ; Jin Mee KIM ; Soo Kyung CHOI ; Ho Won HAN
Korean Journal of Obstetrics and Gynecology 1997;40(1):123-128
We sought to determine whether early amniocentesis is a safe and acceptable method of genetic evaluation in early pregnancy. During the 20-month period from February 1994 to September 1995, 80 consecutive early amniocentesis were performed transabdominally at 12(+3)-14(+6) weeks of gestation and 305 consecutive mid-second-trimester transabdominal amniocenteses were performed at 16(+0)-18(+0) weeks of gestation. All amniotic fluid samples were cultured using flask method. There were no significant differences between the early and mid-second-trimester amniocenteses in failed sampling, ambiguous results, pregnancy loss within 4 weeks after the procedure, pregnancy loss from 4 weeks after procedure to 28 weeks of gestation, preterm birth, and perinatal death. We may conclude that early amniocentesis is a safe and acceptable method for prenatal diagnosis.
Amniocentesis*
;
Amniotic Fluid
;
Female
;
Pregnancy
;
Premature Birth
;
Prenatal Diagnosis