Ronen Shika Igaku
Online ISSN : 1884-7323
Print ISSN : 0914-3866
ISSN-L : 0914-3866
Volume 28, Issue 3
Displaying 1-8 of 8 articles from this issue
Review Article
Original Articles
  • ―Possible Effect of Anti-Calculus Formation with a Green Tea Catechin-Gelatin Mixture―
    Suehiro Tsukamoto, Madoka Kuroki, Saburo Hidaka
    2014 Volume 28 Issue 3 Pages 271-276
    Published: January 14, 2014
    Released on J-STAGE: January 24, 2014
    JOURNAL FREE ACCESS
    The Possible use of green tea catechin-gelatin mixture as a naturally-derived anti-calculus agent was studied using a pH drop method to measure the in vitro formation of calcium phosphate precipitates. A green tea catechin-gelatin mixture with a weight ratio of 1:1 largely inhibited the formation of calcium phosphate precipitates. Addition of a thickener, carboxymethylcellulose (CMC) in a 6:1 ratio inhibited more. From these result, it was suggested that the mixture of green tea catechin:gelatin:CMC=1:1:6 could be a good naturally-derived anti-calculus agent.
    Download PDF (339K)
  • Toshiya Kashiwabara, Takeyoshi Yoneyama, Atsuko Nakamichi, Tsuyoshi H ...
    2014 Volume 28 Issue 3 Pages 277-283
    Published: January 14, 2014
    Released on J-STAGE: January 24, 2014
    JOURNAL FREE ACCESS
    The effectiveness of oral care interventions for preventing aspiration pneumonia and barriers to compromised elderly is universally-recognized in present medical practice. Quick and effective methods and materials are needed for oral health care. An electrolyzed dilute sodium hypochlorite solution was chosen as a sterilizing solution for oral health care and the sterilizing effect was evaluated using an in vitro candida biofilm. Three electrolyzed functional waters, namely strongly alkaline water, weakly acidic water, dilute sodium hypochlorite solution, two kinds of commercial mouth wash and distilled water were used as test solutions. Antibiofilm efficacy and residual chlorine concentration were evaluated before/after immersing candidal biofilm specimens in each solution. pH changes of the solutions and macroscopic observations of metal surface were evaluated before/after immersing three kinds of dental metals: steel bar, cobalt-chromium alloy and gold-silver-palladium alloy in the solutions to test the corrosion behavior. An electrolyzed dilute sodium hypochlorite solution showed high bactericidal capability of candida biofilm on cell desks and stable concentration of available chlorine, but high induction of metal corrosion.
    Download PDF (1792K)
Clinical Report
Reports on Survey
  • ―Second Report:Jaw Opening Muscle Strength of Dysphagia Patients―
    Koji Hara, Haruka Tohara, Satoko Wada, Ayano Kumakura, Shinya Ohno, Hi ...
    2014 Volume 28 Issue 3 Pages 289-295
    Published: January 14, 2014
    Released on J-STAGE: January 24, 2014
    JOURNAL FREE ACCESS
    We developed a jaw opening sthenometer to assess the swallowing function and measure the jaw-opening force of healthy volunteers. In the present study, we investigated the relationship between the jaw-opening force and specific swallowing abnormalities, such as aspiration and pharyngeal residue. The purpose of this study was to examine the relationship between jaw-opening force and swallowing impairment. We examined 95 patients complaining of dysphagia and with symptoms of dysphagia with chronic underlying causes(male: 49, female: 46, mean age: 75.4± 9.7 males and 79.3±9.6 females). The jaw-opening force in the patients with aspiration (male: 4.1±2.8 kg, female: 3.4±1.7 kg) were significantly lower than in those without aspiration (male: 5.6±2.9 kg, female: 4.4±1.8 kg) in both sexes. The jaw-opening force in the patients with pharyngeal residue in the valleculae (male: 4.2±2.3 kg, female: 3.6±1.4 kg) was significantly lower than in those without pharyngeal residue in the valleculae (male:8.5± 3.4 kg, female:5.0±2.0 kg) in both sexes. The jaw-opening force in the patients with pharyngeal residue in the pyriform sinus (male: 4.1±2.1 kg, female: 3.1±1.5 kg) were significantly lower than in those without pharyngeal residue in the valleculae (male: 6.7±3.6 kg, female: 4.7±1.9 kg) in both sexes. There are several causes for aspiration, for example, absence or delay of pharyngeal swallowing, incomplete airway closure and decreased elevation of hyoid and larynx. The last factor is caused by decreased suprahyoid muscle contraction. The pharyngeal residue mainly occurs by incomplete epiglottic tilting and incomplete pharyngeal shortening, resulting from decreased elevation of the hyoid and larynx. Therefore, the assessment of jaw-opening force for swallowing function can be a predictor of aspiration and pharyngeal residue.
    Download PDF (1085K)
  • ―Promotion of the Collaboration in Oral Health Care―
    Ayako Abe, Yasuo Takagi
    2014 Volume 28 Issue 3 Pages 296-303
    Published: January 14, 2014
    Released on J-STAGE: January 24, 2014
    JOURNAL FREE ACCESS
    Although dental care has been promoted in recent years, it appears that many elderly people remain untreated. It is common knowledge that dental treatment reduces the intraoral germs and so improves the patientsʼ QOL. As a contribution to improving the promotion of home dental treatment we studied dentistsʼ attitudes to home visit dental treatment. This study is based on a questionnaire survey of the dentists in 283 dental clinics in a city. There were 70 replies, of which one was excluded (24.7% answer rate). 22 dentists performed home visit dental treatment, while 47 did not. The 15 items on the questionnaire were analyzed using the Mann-Whitney U test and the Fisher test to find significant differences between the "doing home visits" group and the "not doing home visit" group. We also used structure equation modeling to check the relation between the variables. There was a meaningful difference between the home treatment group and the non-home treatment group in relation to the following items:"attended training in home visit dental treatment in my dental school days", "agree with the need for home visits", "think that home visits encourage patients to visit my clinic". In addition there was an indirect effect of other types of job training in raising awareness of home visit dental treatment. We consider the following necessary for improvement of the home care dental treatment system: co-operation with dental clinics, publication of a manual defining the home-treatment dentistsʼ role, and the creation of a dental home treatment training system.
    Download PDF (1164K)
  • Yoshie Usui, Hiroko Miura, Yoh Tamaki
    2014 Volume 28 Issue 3 Pages 304-309
    Published: January 14, 2014
    Released on J-STAGE: January 24, 2014
    JOURNAL FREE ACCESS
Health Activiey Report
feedback
Top