Acrylic resin is commonly used to fabricate removable prostheses due to its adequate physical, mechanical properties and cost effectiveness. There has been continuous development of the materials to improve their properties and to widen its application in different clinical setting. To study the history development of the acrylic resin and elaborate on the properties of different types and the processing methods of acrylic resins used to fabricate denture base which are commercially available in the market. This would help the dental clinician in choosing the best material of choice. The authors have summarized the history, development and classification of different types of acrylic resins used in fabricating denture and processing methods based on all the published research available on this topic using published materials available in the Dental Library, University of Malaya and the database (Science Direct, PubMed). Every type of acrylic denture base material has its pros and cons. Therefore, careful selection of material and the processing method is crucial to ensure the best outcome for prosthodontic treatment. Hence, upholding the patients’ best interest and improving their quality of life.

Angiogenesis is an essential process in tumor growth and metastasis. VEGF has been considered a leading candidate inducing tumor angiogenesis. VEGF expression was significantly correlated with clinical stage, lymph node matastasis, and prognosis of cancers of various parts of body. However, little has been known about the correlation between VEGF expression and clinicopathologic parameters in oral squamous cell carcinoma. The aim of this study was to correlate VEGF expression with the clinicopathological parameters and microvessel density. Forty six oral squamous cell carcinomas were analyzed using immunohistochemical method with primary antibodies to VEGF and CD31. VEGF expression was detected in 33 (71.7%) of the 46 cases. The microvessel density was significantly correlated with VEGF expression (P=0.002). There was no correlation between microvessel density and tumour size, clinical stage, and lymph node metastasis, respectively. VEGF expression did not correlate with the histological grade of tumour differentiation, tumour size, and clinical stages. The VEGF-positive rate seemed to be higher in patients with cervical lymph nodal metastasis than in those without it, but it was not statistically significant. In conclusion, the overexpression of VEGF in the oral squamous cell carcinoma seemed to be associated with a more aggressive course of the disease. Further study is necessary to define the role of VEGF in oral squamous cell carcinoma.
Antibodies ; Carcinoma, Squamous Cell* ; Humans ; Lymph Nodes ; Microvessels* ; Neoplasm Metastasis ; Prognosis ; Vascular Endothelial Growth Factor A*

By the human is getting older, the factors which can the reason of the aging process in the frontal region are divided, static factor and dynamic factor. the static factor is gravity, and the dynamic factor is repeatitive competition of depressosr muscles and elevator muscles. the depressor muscles are corrugator muscle, procerus muscle and orbicularis oculi muscle and the elevator muscle is frontalis muscle. Correction methods of this aging process are divided to non-surgical and surgical method. Non-surgical method are Atecoll and fat injection, and using botulinum toxin. But the effect of these method is temporary and limited, and if the skin laxity is great, this method cannot be used. Surgical methods are laser, chemical peeling, dermabrasion, classical forehead lift which is dissected superficial to galea aponeurosis or subperiosteal plane through coronal or hairline incision, and endoscopy method that the corrugator muscle and procerus muscle are transected by using endoscope, and then the posterior elevation of forehead flap is induced. the endoscopy method is the most popular method in recent years, which has the many advantages of minimal incision, less amount of bleeding and lower complication, but expensive equipment, adaptation and training period are needed. We present the result of 10 patients from May. 1996 to Jan. 1997. After the superior orbital rim exposed through upper eyelid incision, the corrugator muscle was resected while careful attention to the supraorbital n. which was located behind the orbicularis oculi muscle. A communication was made through both sided of medial canthal area, and after the procerus muscle was resected, the fat graft was inserted between them. Finally, we made periosteal incision superiorly, and subperiosteal forehead lift was done without using endoscope.
Aging ; Botulinum Toxins ; Dermabrasion ; Elevators and Escalators ; Endoscopes ; Endoscopy ; Eyelids ; Fibrinogen ; Forehead* ; Gravitation ; Hemorrhage ; Humans ; Muscles ; Orbit ; Skin ; Transplants

To know the amplification pattern according to relative concentration ratio in mixed samples, two STRloci, vwF locus and MBP locus and two VNTR loci, D1S80 locus and d17S5 locus were amplified in DNA with various concentration of two individuals were easily identified. But when the concentration of one person were lowered to 1/20-1/40 of the other's the intensity of product bands diminshed and hardly discernible. Also different amplification efficiency according to the template length was noted, especially in VNTR loci. Using automatic sequencer and RFLP scan program, the intensity OD of each PCR product band could be calculated, and this correlates the felative amplification efficiency of each allele. By using this we could construct quantitative PCR for the mixed samples. This could be used in practical case work for forensic purpose, and also be a valuable candidate for 'chimerism detection' in case of bone marrow transplatation.
Alleles ; Bone Marrow ; DNA ; Humans ; Minisatellite Repeats ; Polymerase Chain Reaction* ; Polymorphism, Restriction Fragment Length

BACKGROUND: A clinical trial was performed to evaluate the antihypertensive efficacy and side effects of amlodipine, a new long-action calcium antagonist, in patients with mild to moderate essential hypertension as measured by 24-h ambulatory blood pressure monitoring. METHODS AND RESULTS: 1) The study patients consisted of 4 men and 6 women, and the mean age was 51 years. Amlodipine monotherapy(5~10mg) was continued for 4 weeks, and blood pressure was measured by 24-h ambulatory blood pressure monitoring. 2) A smooth and sustained lowering of blood pressure was clearly achieved without affecting the circadian rhythm throughout dosing interval. The mean-pressure drop was 21.2/13.7mmHg after 4 weeks of amlodipine monotherapy. 3) The ambulatory pulse rate revealed virtually identical average hourly pulses during the recording period before and after amlodipine treatment. 4) All of the laboratory parameters including blood chemistry, glucose, lipid and electrolytes did not change significantly after 4 weeks of amlodipine monotherapy. 5) Amlodipine therapy resulted in minimal side effects that were well tolerated. CONCLUSIONS: Once-daily amlodipine monotherapy with 5 to 10mg in controlling blood pressure throughout each 24-h cycle is effective and well tolerated in the patients with mild to moderate essential hypertension.
Amlodipine* ; Blood Pressure Monitoring, Ambulatory ; Blood Pressure* ; Calcium ; Chemistry ; Circadian Rhythm ; Electrolytes ; Female ; Glucose ; Heart Rate ; Humans ; Hypertension ; Male

No abstract available.
Cesarean Section* ; Female ; Pregnancy

No abstract available.
Cesarean Section* ; Female ; Pregnancy

Lipoleiomyomas of the uterus are extremely rare benign neoplasm that can be difficult to differentiate from benign cystic ovarian teratomas. Only a few pure lipomas of the uterus have been documented. We presented a case of lipoleiomyoma of the uterus, in which sonography and computed tomography were per formed, but because of its rarity, and confusion with more common uterine leiomyoma and ovarian dermoid tumor, preoperative diagnosis was not suggested. To our best knowledge, this is the first case of uterine lipoleiomyoma in Korea.
Dermoid Cyst ; Diagnosis ; Korea ; Leiomyoma ; Lipoma ; Teratoma ; Uterus*

Lipoleiomyomas of the uterus are extremely rare benign neoplasm that can be difficult to differentiate from benign cystic ovarian teratomas. Only a few pure lipomas of the uterus have been documented. We presented a case of lipoleiomyoma of the uterus, in which sonography and computed tomography were per formed, but because of its rarity, and confusion with more common uterine leiomyoma and ovarian dermoid tumor, preoperative diagnosis was not suggested. To our best knowledge, this is the first case of uterine lipoleiomyoma in Korea.
Dermoid Cyst ; Diagnosis ; Korea ; Leiomyoma ; Lipoma ; Teratoma ; Uterus*

We analyzed ERCP findings of 15 patients with clonorchiasis, that were confirmed by stool examination and operation from May, 1976 to September, 1980. The results were as follows. 1) Filling defects due to adult worm of clonorchis sinensis were significant direct findings of clonorchiasis. 2) Irregular stenosis, fuzziness, raggedness, peripheral dilation and disturbance of peripheral filling of intrahepatic bile ducts were significant indirect findings of clonorchiasis. 3) ERCP was excellent method to evaluate biliary tree in patients with clonorchiasis, who showed obstructive jaundice.
Adult ; Bile Ducts, Intrahepatic ; Biliary Tract ; Cholangiopancreatography, Endoscopic Retrograde* ; Clonorchiasis* ; Clonorchis sinensis ; Constriction, Pathologic ; Humans ; Jaundice, Obstructive