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歯原性粘液線維腫の1症例
Get PDFapplication/pdf1. A odontogenic myxo-fibroma appeared in a 44-year-old woman was reported. It might be suggested to be odontogenic that the epithelial land resembling the epithelial rests of Malassez was found in this tumor. 2. Recently, interior, we collected 53 case reports of myxo-fibroma and myxoma in Japan, and analyzed clinically about these reports.journal articl
副甲状腺除去によるラット切歯のCa, Mgの変化
Get PDFapplication/pdfCalcium and magnesium concentrations in serum and calcium and magnesium contents in dentine are determined in parathyroidectomized rats. The fallowings are the main results. 1. Dentine calcium contents are decreased by the decrease of serum calcium concentration. 2. No positive corelations were observed between serum calcium and magnesium concentrations after parathyroidectomy. 3. Magnesium content in dentine was not affected by parathyroidectomy. Based on the results noted above, it is concluded that parathormone may have some roles in calcium incorporation in dentine although parathormone is not involving in magnesium incorporation in dentine. Magnesium incorporation in dentine may be controlled by some mechanisms other than parathyroid system.journal articl
Antibacterial Actions of Dental Cements
Get PDFapplication/pdfWe examined antibacteriral activities of ten clinically used dental cements on the oral indigenous bacteria. The order of the intensiveness of antibacterial activity in wideness of spectrum of various bacterial species was eugenol group, carboxylate group, zinc phosphate group, copper group=silicate phosahate group, silicate group. The two cements in eugenol group were active on all the indicator strains. Carboxylate group inhibited preferably anaerobes. The others were active on several strains. The action of cements on the susceptible cells was found to be both bactericidal and bacteriostatic, in which eugenol group acted mainly bactericidally. This bactericidal effects were demonstrated also in the teeth experimentally infected. Silicate group exhibited no measurable antibacterial activity. The inhibitory activities were rather stable, they did not lose at least 6 weeks in a solution except for one cement sample. The inhibitory activities were detected in the both of powder components and liquid components of the cements and the activities in the former components were stronger than those of the latter components. Of the authentic reagents consists of cements, eugenol, rosin, zinc oxide, and zinc phosphate exhibited inhibitory activity against various bactrial species.journal articl
カエル舌粘膜のホスファターゼ活性その1
Get PDFapplication/pdfBiochemical and histochemical studies on the phosphatase activities of the mucous membrane of the frog tongue were carried out. The biochemical study strongly suggested that the mucous membrane of the tongue contains both ATPase and alkaline phosphatase activities. But, since the ATPase activity was dependent on the pH of the incubating solution and the maximal activity was obtained around pH 9.0, the ATPase activity may be partly due to the alkaline phosphatase activity. The histochemical study revealed that ATPase activity was localized on the superficial layer of the tongue. Great activity was exhibited in the sensory discs of the fungiform papillae and in the ciliated cell layer of the back of the tongue. Alkaline phosphatase activity could not be demonstrated histochemically in the present study.journal articl
