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口唇顎口蓋裂患者に施された骨移植の2例
Get PDFapplication/pdfBone graftings were performed to two patients of cleft lip and palate. The first case was a 18-year-old female with nasal deformities, and was reconstructed using alveolar bone of the Г region. The second was a 14-year-old male with the floating premaxilla, and was reconstructed by Obwegeser's osteotomy of the premaxilla and fixation with grafted iliac bone. Satisfactory results were obtained for facial deformities and functional disorders of them, and usefulness of bone grafts to cleft lip and palate patients was confirmed.journal articl
Caries Activityに関する研究(2) : 地域におけるCariostatと諸因子の関係について
Get PDFapplication/pdfUsing 298 pupils of the Asahi Elementary School, the relationship between the Cariostat and the following other cariogenetic factors was analyzed statistically. The frequency of sugar intake was studied by dividing it into main meals and betweenmeal food. The most profound relationship to the Cariostat was exerted by the total amount of Sugar intake in a day, followed by that of the main meals and of between-meal food. Concerning plaque control, in the various factors regarding brushing, however, the duration of brushing, the time of the brushing, and synthetic brushing failed to show significant relation to the result of Cariostat. These results indicate an especially intimate relationship between the cariogenetic factors and the caries activity.journal articl
下顎大臼歯の歯頸部ほうろう(エナメル)突起
Get PDFapplication/pdfIn the observation of frequency, location, and extent of cervical enamel projection on the mandibular molar teeth of 130 Indians and the measure of the distance between cervical line and alveolar crest of the lower molars, the following results were obtained: 1. Frequency and degree The cervical enamel projections on the buccal surface of first molars were most frequently I degree in 61%, followed by 0 degree in 28%, and III degree in 5%. Those on the lingual surface were most frequently 0 degree in 50%, followed by I degree in 49% and II degree in 0.38%. The cervical enamel projections on the buccal surface of second molars were most frequently I degree in 62%, followed by 0 degree in 10% and III degree 19%. They were most frequently found in the mandibular molar teeth. Those on the lingual surface were 0 degree in 65% and I degree in 35%. The cervical enamel projections on the buccal surface of third molars were most frequently I degree in 47%, followed by 0 degree in 45% and III degree in 6%. Those on the lingual side were 0 degree in 76% and I degree 24%. 2. Resorption of alveolar crest The average distance between the buccal cervical line and the alveolar crest of the lower first molars was 0 degree in 2.48mm, I degree in 2.65mm, II degree in 3.21mm and III degree in 3.58mm. The average distance of the buccal side on the lower second molars was 0 degree in 2.02mm, I degree in 2.31mm, II degree in 3.20mm and III degree in 2.46mm. The average distance of the buccal side on the lower third molars was 0 degree in 1.32mm, I degree in 1.55mm, II degree in 1.83mm and III degree in 1.90mm.journal articl
開窓療法により嚢胞内永久歯を保存し得た小児の含歯性嚢胞の7例
Get PDFapplication/pdfFenestration was performed to survive seven cases of the dentigerous cyst of children. Postoperative observation was made for up to three years. The results are summarized as follows. 1. Most of the patients were around ten years old in the period of exchanging the buccal segment. 2. The permament mandibular second premolars were involved in most of the cases. 3. The chief complaint was mainly painless swelling in the buccal gingiva or cheek. 4. In most of the cases, the preceding primary tooth was destroyed to the rootrest, or had periapical lesion or abnormal resorption of the roots due to root canal treatment, which was considered as one of the factors of growth of the cyst. 5. In all cases, radiographically, the border of the radiolucent image was clear, and the cyst was uni-locular. The permanent succesor with the open apex was surounded by the cyst. 6. Histopathologically, these cases were diagnosed as the folicular cyst or the eruption cyst. The inflammatory cellular infiltration was found in all cases. 7. The cysts disapeared after the operation in two to four months. Inpacted teeth erupted in almost normal position. In order to prevent the secondary infection and to keep the operation field open, drain gauze was used with antibiotic ointment, which was very effective. 8. The operation was performed under nitrous oxide/oxygen inhalation and intravenous sedation of diazepam, which was very effective in managing the behavior of children.journal articl
歯科教育における技術適応能力診断の方法論的研究第8報 CPIとYG性格検査の年度的推移(1)
Get PDFapplication/pdfThe authors have been examined the effectiveness in judging the students'aptitude by observation and comparison from a synthetic point of view. For the above examination, the Technical Skill Ability Test since 1980, California Psychological Inventory (CPI) since 1980, and Yatabe-Gilford Character Test (YG Character Test) since 1981 were carried out on the students of Matsumoto Dental College, Dental Hygienist and Technician School. This time the following points were studied: (1) the annual comparison and examination of the results of CPI among the same graders of Matsumoto Dental College, Dental Hygienist and Technician School from 1980 to 1982, (2) the comparison of annual changes in every class in the class of 1980 and the class of 1981, (3) on YG Character Test: the percentages of five types at each class in the class of 1981 and the class of 1982, (4) the comparison of annual changes on the five types, (5) the comparison and examination regarding the relation between CPI and YG Character Test with Spearman rank correlation coefficient. Through the researches above the following results were obtained. (1) The annual comparison among the same graders on CPI, in both Hygienist Class and Technician Class, turned out to make no change on the whole, while every grade and class showed the highest value in Group 4. (2) The annual comparison in every class on CPI turned out to make no change in its general tendency. However, the average marks of three classes out of four proved to be higher in their second year than in their first year. (3) The percentages of the five types of YG Character Test at each class are as follows: in Hygienist Class, Group D-37.6%, Group A-26.6%, Group B-25.0%, Group C-5.9%, and Group E-5.1%,and in Technician Class, Group D-49.0%, Group C-16.1%, Group B-15.3%, Group A-15.1%, and Group E-4.5%. Group C turned out to show the higher numerical value in Technician Class while it showed a low value in Hygienist Class. (4) Concerning the annual changes in the five types of YG Character Test, in Hygienist Class, those who belonged to Group A in their second year as well as in their first year were only two persons out of twelve original members, and the other ten persons were dispersed into other groups. In Technician Class, out of six persons who belonged to Group A in their first year, only one person remained in the same group in his/her second year, and the other five persons moved out to other groups. On Group D, out of 14 first graders of Hygienist Class, 10 of them remained in the same group in their second year, and in Technician Class, 9 persons out of ll first graders remained in the same group in their second year. In Group D there is no such transfer as in Group A, and it has an almost atable distribution. (5) Extracting the items that are deeply related from CPI and YG Character Test to make a comparison with each other, high correlativities were observed between the items of CPI (DO: Dominance) and YG (A: Ascendance), both in Hygienist Class and in Technician Class. Also between CPI (Sy: sociability) and YG (S: social extraversion), high correlativities were found in both classes.journal articl