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螢光抗体法によるマウス顎下腺NGFの研究
Get PDFapplication/pdfThe localization and the time of appearance of NGF in submandibular glands of male and female mice was studied during postnatal development by using:immunofluorescence technique. The hormonal effects to the content of NGF in the gland of adult mice were also examined. Results were as follows; 1) NGF was localized in the cytoplasm of granular tubular (GT) cells in the submandibular gland of adult male and female mice. 2) NGF was firstly detectable in the GT cells in the gland of males at 25 days of age, and of females at 30 days of age. These results indicated that distributions of NGF were represented dimorphically from the frist appearance in the submandibular glands of both sexes. 3) Injections of testosterone to female mice resulted in increase in the size of the GT cells and the quantity of secretory granules of their cells and in parallel increment in their NGF contents, whereas castration clearly decreased in size of the GT cells and the quantity of secretory granules and the content of NGF in the submandibular glands.journal articl
口腔内の色彩に関する研究第2報 : 抜去歯牙の色彩
Get PDFapplication/pdfThe surface of the teeth was measured original, reformed instrument Micro Color Computers (M.C.C.) Type I, Type II, Type III, according to the indicating method of the tristimulus values X Y Z based on C.I.E. As a result of this, the following conclusions were obtained: 1. Due to the unevenness of the tooth surface, particularly where the teeth occlude, we had difficulties with our measurement, but the reformed M.C.C. was both useful and accurate because of its capacity to measure by on a small area of materials. The three types of M.C.C. Type I, Type II, Type III seem to differ in the light of measuring by optical detector. Considering the efficacy of measuring minute surface areas, it seems that M.C.C. Type III, which has a thin outline and these inner part is pressed into a diameter of φ0.5m/m is most accurate and easy to handle. 2. The values obtained from M.C.C. Type I, Type II, Type III clearly showed the difference of color between sound and carious teeth. 3. By measuring the teeth surface minutely, using M.C.C. Type III, we found that the lightness (Y Value) was darker in darker in the tooth root than the tooth crown both of the front teeth and the molars. 4. Labial was lightest on the surface of the front teeth and buccal on the molars. On the molars, lingual had the darkest value. 5. This instrument will contribute to the diagnosis of caries, judging from oral cavity and the measurement of color of dental materials.journal articl
口腔内の色彩に関する研究第1報 : 歯科用マイクロカラーメーターの考案と陶歯の色の測定
Get PDFapplication/pdf1. Dental Micro Color Computers (M.C.C.) (Type I, Type II, Type III) were contrived, which can measure the tristimulus value of colors by means of the indicating method of tristimulus value XYZ based on C.I.E. 2. Inside the measuring unit of this M.C.C. there is a computer applying the L.S.I. The Optical detector consists of a flexible glass fibre and a light-receiver. The instrument can be used for measuring color (φ2m/m) and for light (φ0.5m/m). It is a highly efficient instrument which is easy to install, and the measurement of XYZ, xy values can be done at once in only 0.5 seconds (hand-operated and leg-operated). 3. 30 types of Trubyte Biohorm Shade Guide were measured by this instrument. The XYZ stimulation values were Basic Range, Characterized, Yellow-range, Gray ranged and generally according to the numbers of Shade Guide, the lightness changed from light to dark, and the chroma from bright to dull. The Hue also displayed a tendency to regular change. 4. There was also a change in the tristimulus values of the average measured-values of Anatoform Preceptor. 5. Real Teeth, which used in our dental prosthetics showed the values to become lower as 52 moved on to 56. 6. The colors of cervical point and center point in Shade Guide were approximately the same but the color of the incisal ridge point was found to differ from the former.journal articl
下顎骨悪性腫瘍の摘出術後に発生した急性消化性潰瘍の1例
Get PDFapplication/pdfWe had experienced a case of acute peptic ulcer occurred after the extirpation of mandibular malignant haemangioendothelioma and radical neck dissection in a 60-year-old man, and could save his life. In the present article we refered to the acute peptic ulcer as the serious complixcation of the operation, and discussed the diagnosis, treatment and the mechanism of its occurrence.journal articl
無歯顎下顎骨の緻密骨厚径について : 骨膜下インプラント設計のために
Get PDFapplication/pdfThe specimens examined were edentulous mandibles having varied absorption of the alveolar bone. After the specimens were cut down to serial slices,the width of their compact bone was measured. The relationship between the width of the compact bone and the design for the subperiosteal implant could be derived as follows. On the labial side, the parts surrounded by the mental foramen, the mental tubercle and the oblique line did not show any changes in thickness. On the lingual side, the parts surrounded by the mental spine, mylohyoid line and the lingual border of retromolar triangle did not also show changes in thickness. Therefore, it was recommended that the frame of the subperiosteal implant should be set on these areas.journal articl