The purpose of this study was to estimate the morphology and the size of permanent mandibular molar in Korean Adult. The 100 dental college students with a normal dentition and without any dental prosthesis and severe caries were selected for this study. The subjects were taken impression to make study model. On the study model, the 5 dentists measured those sizes and estimated morphological structures with a calipers, a Boley gauge and a protractor. The results were as follows : 1. The clinical crown height, width, thickness and the other anatomical structures had symmetrical relationship between the left and right mandibular molar. 2. In the clinical crown heights aspect, the buccal crown heights always were higher than the lingual crown height. The heights of the each surface, the buccal or lingual surface, were gradually decreased from the 1st molar to the 2nd molar and the difference on the buccal surface was higher than that on the lingual surface. 3. In the clinical crown width aspect, the mesiodistal measurement of the mandibular 1st molar was higher than that of the mandibular 2st molar. 4. In the clinical crown thickness aspect, the mesial buccolingual measurement was highest on the mandibular 1st molar and the distal buccolingual distance was lowest on the mandibular 2nd molar. This distal thickness of the mandibular molar always was higher than that of the mesial half. 5. The well-developed mesiobuccal groove of the 1st mola was observed more often than that of the 2nd molar. The buccal pit was also observed more frequently at the 1st molar, but the frequency(35%) was not high. 6. The occlusal type according to the number of cusp was almost 5-cusp(98%) in the 1st molar and was also 5-cusp(63%) in the 2nd molar. The frequency of the 6th cusp was 31% in the 1st molar and was 22% in the 2nd molar. The frequency of the 7th cusp was below 2% in the both teeth. 7. In the buccolingual intercuspal distance aspect of the mesial and distal half, the intercuspal distance of distal half was higher than that of the mesial half on the 1st and 2nd molar, but the difference on the 1st molar was higher than that on the 2nd molar. 8. The difference between the widths of the buccal and lingual half was 1.5mm in the 1st molar and 0.8mm in the 2nd molar. Therefore the lingual convergency of the occlusal surface was more higher in the 1st molar. 9. On the mandibular 1st and 2nd molar, the distobuccal external angle was more acute than the mesiobuccal external angle. But the mesiobuccal internal angle was more acute than the distobuccal internal angle. 10. When the mandibular molar was a 5-cusp type, the development of the distal cusp on the 1st molar was better than that on the 2nd molar. The difference between the cusps was around 0.4mm.
Adult* ; Crowns* ; Dental Prosthesis ; Dentists ; Dentition ; Humans ; Molar* ; Tooth

No abstract available.
Hair* ; Melanocytes* ; Nevus, Halo*

No abstract available.
Replantation* ; Ureter*

No abstract available.
Transplants*

BACKGROUND: Detection of causative allergens in respiratory allergy patients is important for diagnosis and selection of treatment modality. Allergen sensitization depends on the genetic susceptibility and environmental exposure to allergens. MATERIAL AND METHOD: In this study, we tried to find causative inhalant allergens in respiratory allergy patients who underwent skin prick test with common 55 inhalant allergens and RAST at Chungbuk National University Hospital in Chungbuk district. We also evaluated the changes of causative allergens because the environment here may be quite different, since the main population lives in the urban area and industrialization began later than in the other cities and districts. RESULTS: The major allergen was house dust mite, and its sensitivity rate did not change annually. Other indoor allergens such as cockroach, and animal dander including cat and dog showed similar trends. But the sensitization rate to tree and weed pollen except grass had significantly increased since 1995. Among pollens, the increase of sensntization to weed pollen was more marked. Ratio of sensitization rate to double or triple kinds of allergens also increased. CONCLUSION: Taken together, house dust mite is still the major allergen, but rate to pollen sensitization, especially to weed pollen has increased rapidly and significantly. It is suggested that causative allergens in repiratory allergy patients has begun to shift to pollen recently.
Allergens* ; Animals ; Cats ; Chungcheongbuk-do* ; Cockroaches ; Dander ; Diagnosis ; Dogs ; Environmental Exposure ; Genetic Predisposition to Disease ; Humans ; Hypersensitivity ; Poaceae ; Pollen ; Pyroglyphidae ; Skin

Carp which receive intraperitoneal injections of sodium alginate show a high survival rate after being challenged with Edwardsiella tarda. To elucidate the immunoenhancement by sodium alginate, its effects on the non-specific defense system of carp were investigated. Sodium alginate had little influence either on the activity of the alternative complement pathway or on the phagocytic and respiratory burst activities of head kidney phagocytes (HKP), yet it greatly enhanced the migration of HKP to the peritoneal cavity (the site of injection) and concurrently elevated their phagocytic activity. The number of phagocytes mobilized by sodium alginate was 2 to 50 times greater than that by the well-known peritoneal exudate cell-eliciting agents when injected at the same dose. Accordingly, it is highly probable that the early elimination of challenge bacteria by such mobilized and activated phagocytes was responsible for the high survival rate of the alginateinjected fish. In chemotaxis assays, it was revealed that sodium alginate stimulated sorne leukocyte subpopulation (s) within the peritoneal cavity to produce and/or secrete chemotactic factor (s), while concurrently enhancing the sensitivity of HKP to the factor (s).
Bacteria ; Carps* ; Chemotaxis ; Complement Pathway, Alternative ; Edwardsiella tarda ; Exudates and Transudates ; Head Kidney ; Injections, Intraperitoneal ; Leukocytes ; Peritoneal Cavity ; Phagocytes ; Respiratory Burst ; Sodium* ; Survival Rate

No abstract available.
Animals ; Kidney* ; Proliferating Cell Nuclear Antigen* ; Rats* ; Telomerase*

There are many reports about the deposition of immunoglobulins and complement by direct immunofluorescence(DIF) in the lesion of scabies. The authors investigated the immunoglobulins and C, for the purpose of studying the immunologic reactivity of the host to scabies mites by DIF. The results are summerized as follows: Total number of the cases investigated were 20 (18 males, 2 females), of whom 11 were in their third decade of age. The clinical forms of the tested lesions were papular type (7 cases), nodular type (12 cases), and Norwegian type (1 case). The durations of the patients were mostly within 2 months, but was 9 months in 1 case of nodular type, Deposition of immunoglobulin and C, was demonstrated by DIF in 10 of 12 cases (83. 3%) of nodular type, and 1 of 7 cases (14. 3%) of papular type. The Norwegian type showed negative results. There seemed to be no relation between the duration of scabies and positive rates. Of 20 cases tested, immunoglobulin and C, were deposited in the vascular wall in 11 lesions (55%), and at the dermoepidermal junction in 3 lesions (15%). While in 1 of 7 cases of papular type both IgM and C, were observed, IgM and C, were noted in 7 and 9, respectively, in 12 cases of nodular type.
Complement System Proteins ; Humans ; Immunoglobulin M ; Immunoglobulins ; Male ; Mites ; Scabies*

Nosocomial infections surveillance is the basic activity of infection control programs, and many countries conduct surveillance using various methods. We convinced that each country should conduct an adequate and efficient surveillance system depending on their situations. Here we reviewed the recent nosocomial surveillance systems of other countries. As many countries have succeeded in reducing hospital infections, we expect that Korean Nosocomial Infections Surveillance System would contribute to nosocomial infection prevention and health promotion in Korea through an active surveillance at the national level.
Cross Infection* ; Health Promotion ; Infection Control ; Korea*

No abstract available.
Carcinoma, Bronchogenic* ; Lymph Nodes* ; Mediastinoscopy*