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口臭の分類,原因および診断方法
Get PDFapplication/pdfHalitosis (Bad breath) is classified into physiological bad breath and oral or systemic diseased bad breath. When halitosis is caused by oral disease, odor originate in the oral cavity. When halitosis is caused by systemic disease, odor is part of into the expired air. Physiological halitosis and morbid halitosis are collectively called genuine halitosis. Physiological halitosis depends on lifestyle and age. Halitosis which occurs at the time of rising in the morning is the frequent type of physiological halitosis. Halitosis caused by oral disease has been thought to be caused by dental plaque. However, it has been shown recently that the tongue coating (fur) is the cause of halitosis. In the case of periodontal disease, it is important to remove the fur which is located at the root 1/3 of the tongue simultaneously throughout the periodontal treatment. Moreover, bad odors from the oral cavity are caused mainly by volatile sulfur compounds (VSC). Pseudo-halitosis and halitophobia are generally called self-halitosis. However, when it is a self-halitosis, the patient should receive not only dental treatment but also by medical treatment in psychosomatic internal medicine. Most patients with halitophobia were not treated ambitiously because most people with self-halitosis could not judge their condition and feeling by other people, including dentists. eighty percent or more of people will tend to develop self-halitosis. This is important self-halitosis is cased by too much strain in many cases. We must help relax not only the patient's mental state to also make relax not only mentality but also orbicular muscle of mouth. Diagnosis of halitosis is performed by dividing the contents of questions so that the cause of halitosis can be distinguished throuh a questionnaire at first. Next, odor is judged by organic functional inspection, and the amount of gas in the oral cavity or respiratory organ is measured by apparatus. Organic functional inspection is a formal method of judging a bad odor in Japan. It is necessary to be training always for judging the odor of patients and make the inspection capability not decline. Odor measurement by apparatus has the advantage of explanation to the patient. Various gases are also measurable. We need to know which portion of the bad smell substance is measured, and it is necessary to use it for the purpose collectively.journal articl
顎外固定装置を下顎大臼歯の遠心移動に用いた成人骨格性下顎前突症例
Get PDFapplication/pdfA 23-year-old female patient with a Class III malocclusion and anterior crossbite presented for orthodontic treatment. The treatment plan consisted of uprighting and distal movement of mandibular molars to correct anterior crossbite and Class III molar relationship. Extra-oral anchorage (E.O.A.) was used for molar distalization in the lower dentition along with a pre-adjusted edgewise appliance. The total treatment time was 19 months. A Class I molar relationship was achieved by distalizing the mandibular molar and correct overjet and overbite were obtained. A favorable lingual retrusion of the lower lip and improved facial profile were achieved.journal articl
松本歯科大学所蔵の野口英世の伝記(第6報)
Get PDFapplication/pdfOn November 1, 2004, new paper money of 1,000 yen with an effigy of Dr. Hideyo Noguchi was issued as the first such honor to a person from the medical world in Japan. Previously we presented 254 publications regarding biographies of Dr. Hideyo Noguchi and persons related to him to Matsumoto Shigaku (13 : 1～34, 1987 ; 15 : 217～231, 1987 ; 20 : 80～99, 1994 ; 23 : 194～210, 1997 ; 26 : 137～145, 2000). In this paper, 37 additional books and journals are noted. Among these, the following 3 books are thought to be rare and interesting ; Hata, K. : Hideyo Noguchi, pp.1～77. Hata Hospital, Ujiyamada, 1931 ; Hirano, K. : Hideyo Noguchi, pp.1～212. Sankyo-shoin, Tokyo, 1940 ; Ikeda, N. and Tanaka, R. : Hideyo Noguchi, a Picture book of Koudansha, pp. 1～52. Dainippon-yubenkai-Kodansha, Tokyo, 1941. In grand total, 291 publications have been reported over the past 18 years. The collection will be a possession of Matsumoto Dental University Library.journal articl
Reconsidering Organ Transplantations from Brain Dead Donor Patients
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歯科医療費の分析に関する最近の動向
Get PDFapplication/pdfDental care expenditure in Japan amounted to 2.58 trillion yen in 2002, showing a progressive annual increase. Dental care expenditure accounted for 8.3% of people medical expenses. Dental care expenditure as value points for surgical dental practice covered by social insurance tended to higher in regions with a low concentration of dentists and dental clinics, and lower in regions with a larger difference between the resident population and daytime population. There was a comparatively direct negative correlation between the number of dentists and dental clinics and the consultation income from social insurance of dental clinics. Daily dental practice income was nominally increased, but after adjustment data for the consumer price index was decreased by 6.6% when 1999 were compared with 1981 data. This decrease is best explained by a drop in the dental patient volume outweighing the small increase in fees per patient. As the average fee per patient is relatively higher for dentists, even a small decrease in patient volume translates into a large drop in dental practice income. The analysis of dental care expenditure with respect to three key factors: dental care recipients per population, dental care expenditures per day, and dental consultations per case, showed that there were slight differences according to regional characteristics. The examination with special reference to the effect of aging on dental care expenditures found that the ratio of aged people to the population was negatively related to dental care expenses. This is thought to be due to increases in number of persons with complete denture causing a relative reduction in the ratio of clinical consultations, which results in a decrease in dental care expenses. Elderly people with more sound teeth have lower total medical costs, however the average rate of dental treatment was high in municipalities where the average number of teeth was high, and the average dental expenses of elderly people was high in municipalities where the average rate of dental treatment was high. Therefore, it is meaningful for the population and for dental practitioners that the 8020 movement be strongly promoted. Several studies have suggested worksite promotional activities for dental health promotion activities to effectively reduce dental and medical expenses. After implementing dental health promotion activities, a temporary increase is dental expenditure was observed. However, dental expenditure after two and three years became significantly lower than those of the control group without a preventive program. Dental expenditure accounts for a certain portion of consumer spending, but it varies largely among households according to income. It is more susceptible than general health expenditure to variations in consumer spending and alterations in the health insurance system. No significant relations were observed among the number of dental clinics and cost for both insured and uninsured treatment, suggesting an absence of "physician-induced demand theory". It is more necessary to provide knowledge about dental science and treatment for patients.journal articl
Ethical Issues Regarding Organ Transplantations from Brain Dead Donor Patients
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Reconstruction of Rabbit Experimental Mandibular Defect with rhBMP-2 and Atelocollagen Gel: μCT Observation in Vivo and Histological Examination
Get PDFapplication/pdfA rabbit experimental mandibular defect was reconstructed with rhBMP-2 and atelocollagen gel, and examined using μCT (R_mCT, Rigaku Mechatronics, Tokyo) in vivo and histological techniques. Using eight rabbits, we made an experimental mandibular defect and filled it with 1% atelocollagen gel including rhBMP-2 10ìg (Astellas Pharma Inc.). In μCT observation, the density was slightly elevated at the bone marrow side at one week, and the phenomenon gradually expanded during the course of this experiment. Histologically, mesenchymal cell proliferation and immature bone formation occurred at one week, and mature bone gradually increased and filled in at four weeks.journal articl