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歯科大学・歯学部附属病院における歯科医療従事者とHB肝炎について
Get PDFapplication/pdfThe exposure of medical care staff to viral hepatitis is well known and the preventive measures against infection by viral hepatitis in the hospital have been presented as one of the important items on the agenda of the National Japan Conference of the Directors of Dental College Hospitals on several occasions. Current status at each Dental College Hospital was reported and discussed. In the present report, in addition to the results of surveys on infection by type B hepatitis virus at each Dental College Hospital, current status of the preventive measures against infection by viral hepatitis in each of these hospitals are reported. Survey data reported by Tohoku University School of Dentistry, Showa University School of Dentistry, Nippon Dental University, Josai Dental University, Kyushu Dental College, Kagoshima University Faculty of Dentistry and our College were used as referece. According to these surveys, it seems that dentists and predoctoral students in the Dental College belong to a high risk group for hepatitis B infection. This would indicate that the college or university, as an educational institution, should provide the students with sufficient training regarding the nature of HB hepatitis, as well as preventive procedures. The countermeasures for the infection by viral hepatitis in the hospital have been practiced in each Dental College and University Hospital according to the Medical Institution Guidelines for Type B Hepatitis. Those who engage in dental care should sufficiently recognize the danger of nontransvenous infection and practice necessary preventive measures to avoid infection.journal articl
Marcello Malpighiの歯に関する記述について
Get PDFapplication/pdfMany epistles and reports by Marcello Malpighi are collected in the two books; Opera Omnia and Opera Posthuma. His description of the teeth is contained in these two books. The author translated the description of the teeth into Japanese, it's main point as follows; In Opera Omnia, he said the form of growth in bone and tooth is same manner as plant, and tooth is composed of two parts, they are regarded as enamel and dentin. In Opera Posthuma, he showed shapes of human and animal teeth with several figures.journal articl
下顎前突症の外科的矯正手術17例について
Get PDFapplication/pdfSurgical corrections were performed on prognathism in 17 patients who were examined during the past 8 years in our department. The purpose of this study was to investigate the predominant cases of mandibular prognathism corrected by use of the Dal Pont-Obwegeser method, and to determire whether or not the period of preoperative orthodontic treatment, occlusion, particularly open bite, method of immobilisation, and rotation or displacement of condyle may considerably influence the prognosis (such as return to preoperative relationship). In conclusion, the Dal Pont-Obwegeser method was useful in achieving esthetic appearance, correct occlusion and proper function of the mandible. There have been no open bites nor relapse to date. However, open bite in preoperative relationship tended to intimate incisal occlusion within one year after the removal of arch bars and intermaxillary elastics or wires. A balanced occlusion in harmony with the restored masticating mechanism may not be easily established in open bite. Therefore stabilization may be necessary to be left for a period of more than one year namely critical period to arise postoperative complications. Arthrose was not observed even in cases in which the condyle was thought to be rotated, as the length of reduction to distal position was different on both sides, and radiography revealed a little dislocation of the position of condyle in mandibular fossa. In spite of the extreme care taken to not traumatize the inferior alveolar neurovascular bundle, numbness of one or both sides of the lower lip appeared in many cases, but it was not persistent anesthesia. These findings are of benefit to orthodontic and surgical cooperation in the treatment of cases of prognathism.journal articl
