No abstract available.
Adolescent* ; Humans ; Liposarcoma* ; Neck*

The post core system has been used for reconstructon of severely damaged crown by caries or trauma.But problems such as crown exfoliation,post core fracture and root fracture have been reported. Ideal mechanical properties of the post require high fracture strength,high elastic limit and high resistance against fatigue and corrosion.Modulus of elasticity of the post should be similar with that of dentine.Low hardness is also required for the convenience of post removal in failure.Furthermore, the post itself must be translucent for the esthetical purpose.Several types of the post have been developed to satisfy the criteria above mentioned. The purpose of this study was to find out the mechanical properties of quartz fiber post by comparing with those of gold post and zirconia post. The results of this study were as follows : 1.Maximal fracture strength and stiffness of quartz fiber post were similar with those of gold post and zirconia post. 2.Young's modulus and hardness of quartz fiber post were lower than those of gold post and zirconia post. Mechanical property of quartz fiber post against post fracture was similar with that of gold post and zirconia post.Mechanical property of quartz fiber post against root fracture was higher than that of gold post and zirconia post.Quartz fiber post could be removed easily due to low hardness.
Crowns ; Elastic Modulus ; Elasticity ; Fatigue ; Hardness ; Quartz*

OBJECTIVE: Flow cytometric deoxyribonucleic acid (DNA) content analysis has been shown to be of prognostic importance in some cancers. In this study, DNA patterns obtained by flow cytometry in patients with cervical cancer have been shown to be related to a prognostic importance in cervical carcinoma. METHODS AND MATERIALS: We retrospectively reviewed 59 cervical cancer patients who admitted to the department of obstetrics and gynecology, Samsung Medical Center firom January 1995 to May 1997. RESULTS: A total of 59 archival paraffin-embedded blocks were proc 42.4 percent were found to be DNA content aneuploid (DNA-A) and 57.6 percent DNA content diploid (DNA-D). The S-phase fraction was significantly increased with stage. The incidences of aneuploid and relative DNA index were not significantly increased with the stage(P=0.280) and age of patients(P=0.088). The results had no significant differences between the squamous cell carcinoma and adenocarcinoma, and no relationship between the groups with keratinizing cell type and nonkeratinizing type(P=0.409). The DNA ploidy patterns were not significantly correlated with metastasis to lymph node(P=0.179), tumor size(P=0.109), invasion depth(P=0.361) and recurrent group(P=0.285). High S-phase fraction had a tendency to correlate with the invasion depth(P=0,011), size(P=0.027), lymph node metastasis(P=0.039) and recurence(P=0.099) of cervical cancer. CONCLUSION: Flow cytometric DNA content analysis is being used more frequently in the management of different malignant tumors. Our study shows that DNA content analysis may not serve as an important biological indicator in determining the prognosis in cervical carcinoma, but High S-phase fraction has been connected with more aggressive tumors.
Adenocarcinoma ; Aneuploidy ; Carcinoma, Squamous Cell ; Cervix Uteri* ; Diploidy ; DNA* ; Female ; Flow Cytometry ; Gynecology ; Humans ; Incidence ; Lymph Nodes ; Neoplasm Metastasis ; Obstetrics ; Ploidies ; Prognosis ; Retrospective Studies ; Uterine Cervical Neoplasms

No abstract available.
Humans ; Inpatients*

No abstract available.
Brain* ; Chromosomes, Human, Pair 10* ; Molecular Biology*

Epidermoid cyst is a benign tumor containing a layer composed by stratified squamous epithelium and filled with keratin. The epidermoid cyst after soft tissue damage such as bite, laceration could be caused by implantation of epidermal cells. There are reports of epidermoid cyst rarely occurred after surgical procedures such as bone graft or spine puncture. However, the report of epidermoid cyst associated with flap in the hand is very rare. We experienced such epidermoid cyst after the groin flap mimicking malignancy in the distal phalanx of the thumb. We found calcified mass with bony erosions in radiologic findings and heterotrophic signals and partial necrosis in magnetic resonance imaging that suggested malignancy. However, it was pathologically diagnosed as an epidermoid cyst. Therefore, we report the case and literature review.
Epidermal Cyst* ; Epithelium ; Groin* ; Hand ; Lacerations ; Magnetic Resonance Imaging ; Necrosis ; Punctures ; Spine ; Thumb ; Transplants

Effect of acetylcholine(ACh) and McN-A-343 on porcine coronary artery and rabbit thoracic aorta were investigated in isolated preparations with or without intact endothelium. In the porcine coronary artery, ACh produced concentration dependent contraction which was greater in rings without the endothelium than in intact endothelial rings, but McN-A-343 did not alter the basel tension in both tissues. ACh relaxed contraction induced by 5-hydroxytryptamine(5-HT) in only intact endothelial rings, while NcN-A-343 inhibited the 5-HT induced tension in both preparations dose dependently. Carbachol elicited a prominent contraction in both tissues. The carbacol-induced tension was markedly inhibited by McN-A-343 in either rings with or without endothelium, while ACh contracted further the tension. ACh and McN-A-343 did not after the KCi induced tension, but clearly potentiated the contraction induced by Bay K 8644 in intact endothelial rings. In rabbit thoracic aorta, ACh elicited contraction in a concentration-dependent fashion which was potentiated by removal of endothelium, but McN-A-343 did not affect the basal tension of both rings. ACh inhibited the 5-HT-induced contraction in only intact endothelial ring, but McN-A-343 did not change the contraction of both rings. Conclusively, ACh produces endothelium-dependent relaxation in both arteries, while McN-A-343 elevated endothelium-independent inhibition to 5-HT or carbachol-induced tension.
(4-(m-Chlorophenylcarbamoyloxy)-2-butynyl)trimethylammonium Chloride* ; 3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl ester ; Acetylcholine* ; Aorta, Thoracic ; Arteries* ; Carbachol ; Coronary Vessels ; Endothelium ; Relaxation ; Serotonin

PURPOSE: To compare the accuracy of implantation by radiologic results between 3D Linker and navigation guided total knee arthroplasty. MATERIALS AND METHODS: Between February 2004 and April 2005, total knee arthroplasties were done in 25 knees with balanced gap-resection technique (group A) and 25 using kinematic navigation system(group B) by a single surgeon. All patients had standing long anteroposterior (AP) radiographs of the lower extremities and supine lateral radiographs of the knees at 6 weeks postoperatively. Mechanical axis deviation, alpha and beta, angles were measured on standing long leg AP views and alpha and beta angles on supine knee lateral views. Results were classified according to the deviation from the reference line and graded as excellent, good, and poor. The result was regarded as satisfactory when all five angles were excellent or good. RESULTS: The mean mechanical axis deviation was 1.11degrees in group A and 1.36degrees in group B and all were excellent in both groups. Regarding alpha.angles, 19 cases were excellent and, 6 good in group A and, 21 excellent and 4 good in group B. Regarding., angles, 22 cases were excellent and, 3 good in group A and, 23 excellent and 2 good in group B. Regarding.,, angles, 15 cases were excellent, 8 good and 2 poor in group A and, 15 excellent, 9 good, and 1 poor in group B. Regarding beta angles, 19 cases were excellent, 3 good and 3 poor in group A and, 23 excellent, and 2 poor in group B. There were no statistical differences between two groups in all five angles (p>0.05). An excellent implantation in all five angles was obtained in 28% in group A and 60% in group B (p<0.05). There were 80% of satisfactory cases in group A and 84% in group B with no statistical difference (p>0.05). CONCLUSION: Radiological results (mechanical axis and component angles) of total knee arthroplasty were satisfactory in 80% with balanced gap-resection technique and 84% with kinematic navigation system and showed no statistical difference.
Arthroplasty* ; Axis, Cervical Vertebra ; Humans ; Knee* ; Leg ; Lower Extremity

OBJECTIVE: The purpose of this study is to investigate the difference on regional volume in temporal lobe between Alzheimer's disease patients with psychosis (AD+P) and Alzheimer's disease patients without psychosis (AD-P). METHODS: Altogether, 24 AD+P and 25 AD-P matched age, gender, and clinical dementia rating sum of box (CDR-SOB) were include from a Memory impairment clinics of Pusan National University Hospital in Korea. AD+P were diagnosed according to Jeste and Finkel's proposed diagnostic criteria for psychosis of Alzheimer's disease. Grey matter volume of temporal lobe was measured with 3-tesla magnetic resonance imaging and freesufer analysis. Analysis of variance was used to investigate the association between temporal lobe and AD+P after controlling age, gender, education years, CDR-SOB and total intracranial volume. RESULTS: We found an association between AD+P and reduced grey matter volume in total temporal lobe as well as in specific temporal regions such as left middle temporal lobe, left inferior temporal lobe, both hippocampus and both fusiform. CONCLUSION: Our findings suggest that AD+P are associated with reduced grey matter volume of temporal lobe.
Alzheimer Disease* ; Atrophy* ; Busan ; Dementia ; Education ; Gray Matter ; Hippocampus ; Humans ; Korea ; Magnetic Resonance Imaging ; Memory ; Psychotic Disorders* ; Temporal Lobe*

Facioscapulohumeral muscular dystrophy (FSHD) is a genetically trarlsmitted benign muscular dystrophy which has autosomal dominant inheritance pattern. It starts anytime within the first 30 years of life, and usually involves the face and shoulder girdle, and finally the pelvic muscles with very slow progression. Authors-report a fanily consisting of a father, two sons and one daughter, who had suffered from exertional dyspnea, weakness of facial muscle and winged scapulae, all wlth a slow progressive course. Two of these patients were biopsied arld confirmed light microscopically and electron microsopically.
Dyspnea ; Facial Muscles ; Fathers ; Humans ; Inheritance Patterns ; Muscles ; Muscular Dystrophies ; Muscular Dystrophy, Facioscapulohumeral* ; Nuclear Family ; Scapula ; Shoulder