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松本歯科大学病院歯科放射線科におけるCT検査の実態調査1988年-1993年
Get PDFapplication/pdfComputed tomographic (CT) equipment was placed in the Matsumoto Dental University Hospital in June 1988, and was employed in more than 1200 examinations to March 1993. In order to determinie whether the CT examinations were reasonably applied during this period, we studied 697 cases retrospectively regarding numbers, age, sex, kind of disease and numbers of ordinary and specific examinations. The statistical results revealed that the examinations for the first 5 years were appropriately performed in diagnosing diseases in the maxillo-facial region, and specifically functioned in the regions and tissues of benign or malignant tumors.journal articl
Uber den II philosophischen dialog von dem jungen Medikus F. Schiller:"DER JUNGLING UND DER GREIS, Versuch eines Nichtstudierten"(1782)
No full textPdepartmental bulletin pape
歯根膜内の貪食能を有する細胞について
Get PDFapplication/pdfTo evaluate phagocytic cells in periodontal membrane under physiological condition, we used horseradish peroxidase (HRP) as a phagocytic tracer. 10-week-old male rats were injected intravenously with HRP, and sacrificed 1 hour after the injection. Upper jaws were dissected out, decalcified, and prepared for light and electron microscopic observations. Furthermore, immunohistochemical localization of macrophages in periodontal membrane was examined by using anti-rat macrophage monoclonal antibody, ED 2. The following results were obtained: 1. Most of the phagocytic cells in the periodontal membrane can be found adjacent to the blood capillaries. 2. Electron microscopic observation revealed that most of these phagocytic cells were macrophages which had microvilli, secondary lysosomes with HRP and components of lipid-like drops in cytoplasm. 3. ED2 positive cells were found adjacent to the blood vessels in the periodontal membrane. The results of this study suggest that phagocytic cells of HRP in the periodontal membrane are macrophages.journal articl
実験的歯の移動に伴う歯槽骨骨改造活性の動的把握の試み : 鉛生体染色法を用いて
Get PDFapplication/pdfUsing a single injection for lead vital staining, we observed dynamic events of bone remodeling activity of the alveolar bone incidental to experimental tooth movement. Rat maxillary first molars were moved mesially, with a coil-spring appliance for 7 days. EDTA-Pb as intraperitoneally injected 3 hours before sacrifice. The animals were euthanized 3, 6, 12, 24, 48, 72 hours and 7 days after tooth movement. Lead deposition lines on the alveolar surface surrounding the roots were examined. Furthermore, histological changes after tooth movement were examined regarding the morphological alternations of osteoblasts on the alveolar surface. Non-treated rats were used as controls. In controls, only 1 lead deposition line as clearly identified on the whole alveolar bone surface encircling the root. However, on the mesial/pressure side in experimental groups after 12 hours of mesial movement, lead deposition could not be found in any area on the alveolar bone surface, demonstrating that the bone formation activity began to disappear from this area due to tooth movement. Changes in the lead deposition line on the alveolar bone surface on the pressure side, closely corresponded to morphological alternations of osteoblasts on the alveolar bone surface after tooth movement. These results suggest that this lead vital staining technique can visualize bone formation activity on the alveolar surface surrounding the roots, and is an useful method to observe dynamic events of bone remodeling activity of the alveolar bone, incidental to experimental tooth movement.journal articl