1.A STUDY ON THE ACCURACY OF THE IMPRESSION BODY ACCORDING TO MATERIALS AND FORMS OF THE INDIVIDUAL TOOTH TRAY.
Duck Woo RYU ; Ju Hwan LIM ; In Ho CHO
The Journal of Korean Academy of Prosthodontics 2000;38(2):242-254
Accurate impression is very important to achieve desirable prosthesis and there are many factors in taking a good impression. For example, types of impression material, types of impression tray, impression taking methods and so on. Recently individual tooth tray technique is accepted as obtaining good impression that can be applied to multiple abutment impression, heavy salivated patient, to minimize the effect of natural teeth' s undercuts and to reduce pain during cord packing procedures. The purpose of this study was to compare the accuracy according to materials and forms of the individual tooth tray which is clinically applied nowadays. Used materials in experiment were divided into 3 types (acrylic resin, Futar' occlusion, Blu-mousse) and forms were divided into 2 types (forming occlusal vent hole or not and forming marginal vent space or not). Stone master model from impression body and metal master model were measured by X-PLAN360d to compare occlusal surface discrepancy and marginal discrepancy. The results were as follows 1. In comparison of occlusal surface discrepancy and marginal discrepancy according to materials, groups with three materials showed no statistical difference. 2. In comparison of occlusal surface discrepancy and marginal discrepancy according to occlusal vent hole, groups with occlusal vent hole showed significantly less marginal discrepancy than groups with no occlusal vent hole(p<0.05). 3. In comparison of occlusal surface discrepancy and marginal discrepancy according to 0.5mm marginal-vent-space, groups with no 0.5mm-marginal-vent-space showed significantly less mar ginal discrepancy than groups with 0.5mm-marginal-vent-space(p<0.05). In summary, these results suggest that individual tooth tray made of 3 types of materials with occlusal vent hole and individual tooth tray made of acrylic resin with no marginal vent space showed good accuracy of impression. In addition, individual tooth tray which is made of bite registration materials may be more useful because of advantage in facility and timesaving aspect of fabrication.
Humans
;
Jaw Relation Record
;
Prostheses and Implants
;
Tooth*
2.A STUDY ON THE ACCURACY OF THE IMPRESSION BODY ACCORDING TO MATERIALS AND FORMS OF THE INDIVIDUAL TOOTH TRAY.
Duck Woo RYU ; Ju Hwan LIM ; In Ho CHO
The Journal of Korean Academy of Prosthodontics 2000;38(2):242-254
Accurate impression is very important to achieve desirable prosthesis and there are many factors in taking a good impression. For example, types of impression material, types of impression tray, impression taking methods and so on. Recently individual tooth tray technique is accepted as obtaining good impression that can be applied to multiple abutment impression, heavy salivated patient, to minimize the effect of natural teeth' s undercuts and to reduce pain during cord packing procedures. The purpose of this study was to compare the accuracy according to materials and forms of the individual tooth tray which is clinically applied nowadays. Used materials in experiment were divided into 3 types (acrylic resin, Futar' occlusion, Blu-mousse) and forms were divided into 2 types (forming occlusal vent hole or not and forming marginal vent space or not). Stone master model from impression body and metal master model were measured by X-PLAN360d to compare occlusal surface discrepancy and marginal discrepancy. The results were as follows 1. In comparison of occlusal surface discrepancy and marginal discrepancy according to materials, groups with three materials showed no statistical difference. 2. In comparison of occlusal surface discrepancy and marginal discrepancy according to occlusal vent hole, groups with occlusal vent hole showed significantly less marginal discrepancy than groups with no occlusal vent hole(p<0.05). 3. In comparison of occlusal surface discrepancy and marginal discrepancy according to 0.5mm marginal-vent-space, groups with no 0.5mm-marginal-vent-space showed significantly less mar ginal discrepancy than groups with 0.5mm-marginal-vent-space(p<0.05). In summary, these results suggest that individual tooth tray made of 3 types of materials with occlusal vent hole and individual tooth tray made of acrylic resin with no marginal vent space showed good accuracy of impression. In addition, individual tooth tray which is made of bite registration materials may be more useful because of advantage in facility and timesaving aspect of fabrication.
Humans
;
Jaw Relation Record
;
Prostheses and Implants
;
Tooth*
3.Gastrointestinal impaction by Parascaris equorum in a Thoroughbred foal in Jeju, Korea.
Seung Ho RYU ; Jong Duck JANG ; Ung Bok BAK ; Chang Woo LEE ; Hee Jeong YOUN ; Yonghoon Lyon LEE
Journal of Veterinary Science 2004;5(2):181-182
A weanling Thoroughbred foal was admitted to Equine Hospital, Korea Racing Association with signs of colic. On admission the foal was sweating profusely, appeared anxious and exhibiting signs suggestive of abdominal pain. Clinical examination revealed: tachycardia (90 beats/min), tachypnea (50 breaths/min) and congested and slightly cyanotic mucous membranes. No intestinal sounds were auscultated in all 4 abdominal quadrants. Rectal palpation identified concurrent cecum and large colon impactions. Treatment consisted of intravenous administration of a balanced electrolyte solution, nasogastric siphonage and administration of analgesics. Nasogastric reflux contained ascarids. This treatment failed to alleviate the signs of colic. The foal died 3 hours later following discharge because the owner didn't want laparatomy because of economic constraints. Prior to admission this foal had not received any prophylactic anthelmintic treatment. In necropsy, there were masses of ascarids accumulation in the stomach, small intestine and large intestine. The outcome of this report is to describe the first diagnosed case of gastrointestinal impaction by P. equorum in a Thoroughbred foal in South Korea and indicates the importance of regular anthelmintic treatment.
Animals
;
Ascaridida Infections/diagnosis/parasitology/*veterinary
;
Ascaridoidea/*isolation&purification
;
Fatal Outcome
;
Fecal Impaction/diagnosis/parasitology/*veterinary
;
Horse Diseases/diagnosis/*parasitology
;
Horses
;
Intestinal Diseases, Parasitic/diagnosis/parasitology/*veterinary
;
Korea
4.Expression of High Mobility Group Protein Family HMGI(Y) and HMGI-C in Human Breast Cancer.
Jin Woo RYU ; Duck Hwan KIM ; Hyung Sik SHIN ; Eun Sook NAM ; Hyung Jee KIM
Cancer Research and Treatment 2001;33(4):281-285
PURPOSE: Breast cancer results from the progressive accumulation of a series of genetic alterations leading to neoplastic transformation. Recent studies have shown that a) HMGI proteins play an important role in the regulation of chromatin structure and function and b) the expression of aberrant HMGI [HMGI(Y) and HMGI-C] proteins is generally correlated with malignant tumors. We tried to define the function of HMGI in carcinogenesis and we compare the expression of HMGI with known clinicopathologic parameters. MATERIALS AND METHODS: Using Reverse transcriptase-polymerase chain reaction (RT-PCR), we determined the expression of HMGI mRNA in 60 primary malignant tumors, 20 normal tissue, 13 benign tumors, and four ductal carcinoma in situ. Immunohistochemical staining of p53, ER, PR, and clinicopathological parameters were evaluated. RESULTS: The expression of the HMGI(Y) mRNA increased more in malignant tissue (90%, 54 of 60) than in benign (76.9%) and normal (65%) tissues (p=0.031). The expression of HMGI-C mRNA was visible only in malignant (48.4%, 29 of 60) and benign (23.1%, 3 of 13) tumors. The expression of HMGI-C mRNA increased more in malignant tumors than in benign tumors (p<0.001). In invasive ductal tumors (n=50), the expression of HMGI-C mRNA was observed more in high grade tumors (grade 3~81.3%, grade 1, 2~32.4%) (p=0.005). Among the prognostic parameters, only the number of mitotic figures was related to the expression of HMGI-C mRNA (p=0.046). CONCLUSION: These results suggest that a) HMGI-C gene may be correlated with the formation of breast tumors and b) the expression of HMGI-C gene may be of pathogenetic and prognostic importance in human breast cancer.
Breast Neoplasms*
;
Breast*
;
Carcinogenesis
;
Carcinoma, Intraductal, Noninfiltrating
;
Chromatin
;
HMGA1a Protein
;
Humans
;
Humans*
;
RNA, Messenger
5.Xanthogranulomatous Cholecystitis Complicated with Cholecystocolonic Fistula.
Hong Sik LEE ; Hun Jai JEON ; Chi Wok SONG ; Sang Woo LEE ; Jae Hyun CHOI ; Chang Duck KIM ; Ho Sang RYU ; Jin Hai HYUN
Korean Journal of Gastrointestinal Endoscopy 1993;13(3):587-590
Xanthogranulomatous cholecystitis is an uncommon inflammatory disease of the gall baldder characterised by a focal or diffuse destructive inflammatory process. The pathogenesis is uncertain, but an inflammatory response to extravasated bile due to acute inflammation and obstruction is likely. Macroscopically, the gall bladder wall is invariably thickened, and extensive adhesions to adjacent organs are frequent. Clinically, xanthogranulomatous cholecystitis can mimic gall bladder carcinoma and radiologic differential diagnosis is extremely difficult. Fistula to skin and duodenum was reported. We report the first case of cholecysto-colonic fistula due to xanthogranulomatous cholecystitis.
Bile
;
Cholecystitis*
;
Diagnosis, Differential
;
Duodenum
;
Fistula*
;
Inflammation
;
Skin
;
Urinary Bladder
6.Cyclin D1 Expression in 101 Cases of Breast Carcinoma.
Duck Hwan KIM ; Eun Sook NAM ; Hyung Sik SHIN ; Jin Woo RYU ; Jai Hyang GO ; Young Lyun OH ; Sang Yong SONG ; Dae Shick KIM ; Min Chul LEE
Korean Journal of Pathology 1998;32(4):266-272
Cyclin D1, a cell cycle regulator essential for G1 phase progression, is a candidate proto-oncogene implicated in pathogenesis of several human carcinomas including breast carcinoma. We studied the cyclin D1 expression in 101 cases of primary breast carcinoma tissues. The overexpression of cyclin D1 was immunohistochemically demonstrated in 34 (37.8%) of 90 cases of invasive breast carcinoma. Positive cyclin D1 staining was seen in 32 of 79 invasive ductal carcinomas, and 2 of 3 mucinous carcinomas. All 5 medullary carcinomas, 2 invasive lobular carcinomas, and 1 metaplastic carcinoma were negative. Cyclin D1 overexpression was observed in 9 of 11 ductal carcinoma in situ (DCIS). Normal epithelial components, either ductal or lobular, were not immunoreactive for cyclin D1. No significant correlations were observed between cyclin D1 immunoreactivity and other parameters including tumor size, clinical stage, nuclear or histologic grades, lymphatic or angioinvasion, lymph node metastasis, and immunohistochemical status of progesterone receptor, p53 and c-erbB-2. The overexpression of cyclin D1 was positively correlated with estrogen receptor status (p=0.025). Based on our results, the cyclin D1 protein aberration may play a role in tumorigenesis of breast carcinoma, but does not seem to have prognostic value in invasive breast carcinoma without hormonal treatment.
Adenocarcinoma, Mucinous
;
Breast Neoplasms*
;
Breast*
;
Carcinogenesis
;
Carcinoma, Ductal
;
Carcinoma, Intraductal, Noninfiltrating
;
Carcinoma, Lobular
;
Carcinoma, Medullary
;
Cell Cycle
;
Cyclin D1*
;
Cyclins*
;
Estrogens
;
G1 Phase
;
Humans
;
Lymph Nodes
;
Neoplasm Metastasis
;
Proto-Oncogenes
;
Receptors, Progesterone
7.A Case of Duodenal Tuberculosis Associated with Hematemesis.
Hee Jin JUNG ; Hwon Taig SONG ; Chi Wook SONG ; Sang Woo LEE ; Chang Duck KIM ; Ho Sang RYU ; Jin Hai HYUN
Korean Journal of Gastrointestinal Endoscopy 1992;12(2):263-266
Despite the marked decreased frequency of tuberculosis in the world by advent of effective chemotherapy, gastrointestinal tuberculosis is considered to be relativeiy frequent in developing countries. Tuberculosis of the duodenum is rare, little reported in the literature. The prevalenoe rates in reports dealing with necropsy observations in patient with pulmonary tuberculosis range from 0.36%-2.3%. Definitive diagnosis will require endoscopic or surgical biopsy because of inconsistent clinical findings, Recently, we experienced a case of duodenal tuberculosis with massive UGI bleeding, masquering as a duodenal ulcer bleeding, and diagnostic confirmation was attained by histologic findings of endoscpic biopsy. A 65-year-old woman was admitted with 3 months history of epigastric discomfort, 1 day history of hematemesis and melena. Urgent endoscopy revealed active bleeding from a large ulcer causing obstruction of the 2 nd portion of duodenum and endoscopic electrocoagulation was performed with success. After a reasonable medical trial, follow-up endascopic examinations of lesion showed no response. So, endoscopic biopsies was done and histopathology revealed multiple granuloma with central necrosis.
Aged
;
Biopsy
;
Developing Countries
;
Diagnosis
;
Drug Therapy
;
Duodenal Ulcer
;
Duodenum
;
Electrocoagulation
;
Endoscopy
;
Female
;
Follow-Up Studies
;
Granuloma
;
Hematemesis*
;
Hemorrhage
;
Humans
;
Melena
;
Necrosis
;
Tuberculosis*
;
Tuberculosis, Gastrointestinal
;
Tuberculosis, Pulmonary
;
Ulcer
8.A Case Report of Lymphangioma of the Colon.
Tae Jin SONG ; Hyun Chul PARK ; Jong Jae PARK ; Hye Rang KIM ; Jae Hyun CHOI ; Sang Woo LEE ; Chang Duck KIM ; Ho Sang RYU ; Jin Hai HYUN
Korean Journal of Gastrointestinal Endoscopy 1991;11(2):379-381
Lymphagiomas are composed of multiple lymphatic channels lined by benign-appearing endothelial cells. The lisions can occur anywhere in body and extremely rarely affect the colon. But lymphangiomas of the colon have been reported more frequently since the development and widespread use of the colonofiberscope. In the past, most lympangioma have been removed surgically, But now that transendoscopic snare polyectomy is possible, diagnosis by total biopsy constitutes the treatment. In the present paper, we reported the case af colonic lymphangioma in 51-year old woman who underwent endoscopic resection.
Biopsy
;
Colon*
;
Diagnosis
;
Endothelial Cells
;
Female
;
Humans
;
Lymphangioma*
;
Middle Aged
;
SNARE Proteins
9.Study of the Relation between Rreduced E-cadherin Expression and Known Prognostic Factors in Breast Cancer.
Jin Woo RYU ; Min CHUNG ; Jeong Taek KIM ; Chan Young LEE ; Duck Hwan KIM ; Jae Hwan LEE ; Min Chul LEE
Journal of the Korean Surgical Society 1998;54(6):810-816
Breast Cancer in women poses a problem, and it can be difficult at times to evaluate the possibility of the cancer's recurrence in node negative early cancer. Reliable prognostic markers are needed in breast-cancer management to help clinicians identify patient with high risk of recurrence and arrive at more rational decisions for proper treatment. E-cadherin is a glycoprotein that mediates Ca2 -dependent cell-cell adhesion and maintenance of the epithelial cell phenotype. It has been implicated as an invasion-suppressing protein in experimental systems and in human tumors, and alterations in the cadherin function have been implicated in tumor progression in a number of adenocarcinomas. In this study, the expression of E-cadherin was reduced in 35.3% of the case reviewed(12/34), and we could find no clinical relation between the known prognostic factors except tumor stage(p<0.05), and the degree of E-cadherin expression.
Adenocarcinoma
;
Breast Neoplasms*
;
Breast*
;
Cadherins*
;
Epithelial Cells
;
Female
;
Glycoproteins
;
Humans
;
Phenotype
;
Recurrence
10.A Case of Early Gastric Cancer with IgA Nephropathy in the Elderly Patient.
Seung Min CHOI ; Young Jin JOO ; Kwang Won RYU ; Jae Hyun CHO ; Woo Seob EOM ; Jeon Soo RYU ; Do Kyun KIM ; Young Jin KIM ; Sang Hyun KIM ; Bum Gon YEO ; Su Yeon LEE ; Sang Woon PARK ; Yong Duck JEON
Journal of the Korean Geriatrics Society 2003;7(2):164-169
IgA nephropathy is the most common form of glomerulonephritis characterized by deposit of IgA on mesangium. We experienced an elderly patient who was admitted for generalized edema, and diagnosed IgA nephropathy and early gastric cancer concomittantly. It has been reported that the incidence of nephrotic syndrome combined with malignancy increases with aging. Moreover, close relationship between IgA nephropathy and malignancy has been reported especially in the elderly patient. So, active investigations for possible malignancy are required in case of elderly patient with IgA nephropathy. In this case, we found improved proteinuria and hematuria of the patient after tumor resection during following up. This case suggest causal association between early gastric cancer and IgA nephropathy clinically.
Aged*
;
Aging
;
Delirium
;
Depression
;
Edema
;
Glomerulonephritis
;
Glomerulonephritis, IGA*
;
Hematuria
;
Humans
;
Immunoglobulin A*
;
Incidence
;
Nephrotic Syndrome
;
Proteinuria
;
Stomach Neoplasms*