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オーストラリア クイーンズランド州の学校歯科治療士について
Get PDFapplication/pdfSchool dental therapists are trained to provide most of the dental treatment children require. They work under the direction and control of dentists, and are classified as operative dental auxiliaries. Their work in Queensland is restricted to children under the age of 15 years.journal articl
小児歯肉炎のスクリーニング
Get PDFapplication/pdfPeriodontal disease in children are mainly cases of gingivitis caused by local factors such as poor oral hygiene or dental eruption. Gingivitis in children seldom presents serious symptoms. Periodontal diseases are influenced by many factors that are interconnected. Nevertheless, children with gingivitis have a tendency to have an increase in the level of periodontal diseases in thier later life. The longitudinal study by McCall, Parfitt et al. showed that most of the periodontal diseases among adults originated from chronic gingivitis in childhood. To prevent periodontal disease in adults, it is important to find out and make known the actual conditions of gingivitis among children and to take pertinent countermeasures for the prevention of pediatric gingivitis. If concretely objective diagnostic criteria for superficial gingivitis in children can be established, early discovery and early prevention of periodontal diseases in children should be expected. However, as a member of the Ministry of Health and Welfare's study group (Study on public health of children as heading toward to the aging society), the author had a chance to investigate the etiology and progress of periodontal diseases in children. Compared to periodontal diseases in adults, the symptoms of gingivitis in children is not quite obvious. From the point of view of public health, the objective diagnostic criteria for superficial gingivitis in children are not adequately provided. As with the case of dental caries, periodontal diseases are influenced by many life factors that are interconnected. Although it is difficult to isolate these relative factors from one another, one of the major etiologic factors of periodontal diseases in children is reported to be life customs. In this paper, the author referred to the literature and used a multivariate analysis method to comment on the relationship among these distinctive factors such as life customs, behavioral patterns and life attitude of the children.journal articl
酸化電位水による根管洗浄の効果について
Get PDFapplication/pdfRecently, high oxidation potential (HOP) water has attracted a great deal of attention because it has strong sterilizing power, but does not pollute the environment. In this study, HOP water was clinically used as an irrigating solution of the 53 infected root canals. After the infected root canals were mechanically enlarged and shaped according to Yasuda's criteria, they were irrigated to become sterilized using HOP water. The bacterial examination of the infected root canals was done immediately after irrigation and at the beginning of the next appointment, to know whether they became asepsis or not. The results were as follows: 1. 22.6% of the 53 root canals immediately after irrigation showed growth-free cultures, and 17% of the infected root canals remained free of bacterial growth until the beginning of the next appointment. These results obtained were inferior to those of other irrigating solutions such as Neocleaner or RC-Prep. 2. Concerning the relationship between the obtained growth-free cultures and the periapical lesion, the growth-free cultures obtained showed 64.3% were of the periapical lesion-free group, 9.1% were of the periapical lesion-questionable group and 7.1% were of the periapical lesion-positive group.journal articl
下顎枝矢状分割骨切り術における骨固定法の違いによるオトガイ神経と粘膜創の治癒に与える影響
Get PDFapplication/pdfWire and titanium bone screw osteosynthesis after sagittal split osteotomy has been used for 78 cases of the mandibular prognathism at the Department of Oral and Maxillofacial Surgery II of the Matsumoto Dental College since 1985. Sixty-six cases could be included in a follow-up study, and the comparison could be made between the two fixation methods. We investigated the incidence of both mental nerve paresthesia and prolonged mucosal wound healing in each side in which wire or bone screw fixation was applied. In cases of the posterior transfer of the corpus mandibulae more than 5mm, the incidence of the prolonged mucosal wound healing in side patients in whom the bone screw was applied was significantly higher than that in patients in whom the wire was applied. On the other hand, the incidence of the mental nerve paresthesia was not statistically significant between wire fixation and bone screw fixation.journal articl
Johannes ScultetusのArmamentarium Chirurgicumにおける歯科学的事項について
Get PDFapplication/pdfJohannes Schultes (1595-1645), commonly called Scultetus was a great German surgeon of the 17th century. Born in Ulm on the Danube, on October 12, 1595, he went, at the very young age of fifteen, to Padua for the study of medicine. Here he came under the influence of Fabricius ab Aquapendente, prominent surgeon and anatomist, for whom he served as prosector. A doctorate in medicine, surgery, and philosophy was conferred upon him in 1621, after which he practiced for a short time in Padua and, later, in Vienna. At the age thirty he returned to Ulm in the capacity of city physician. This post he filled with distinction until his death in 1645 which occurred in Stuttgart (during visit to a patient). His famous book, Armamentarium Chirurgicum (Ulm, 1653 or 55), was published posthumously by his nephew who was also his namesake, called Scultetus the Younger, as well as his disciple and literary executor. The dedication to his book not only draws a picture of the elder Scultetus, but, also, in a charming manner, gives us some information as to his works and character. I will review this book. The original edition, published in 1653 or 55 contained 43 full-page illustrations. Translations into German, French, and English made the work accessible to those surgeons throughout Europe who lacked the ability to read the original Latin. It contains a complete catalogue of all known surgical instruments, methods of bandaging and splinting, and a vast number of operative procedures, all of which are illustrated in graphic detail by means of numerous plates. In addition, it contains a large number of case reports which give evidence of his surgical daring and skill. Particularly, I found the following instruments and treatments on dentistry. 1. Instruments; common dental forcepes, Crow's beak forceps, several kinds of pelicans, two special dental forceps, bifid and trifid elevators, dentiscalpia (scalpel for gum), silver cannula, screw dilator and so on. 2 Treatments; tumor-excisions of upper lip and palate, treatment of uvula gangrene, treatment of harelip, cauterization of pulp, extraction of malpositional tooth, giving liquid food to patient of trismus, palatine obturator with sponge, use of mouth dilator and speculum, removing of foreign bodies in throat and so on.journal articl
