Koku Eisei Gakkai zasshi最新文献

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[Studies on fluoride mouth-rinsing solution for dental caries prevention. II. Fluoride uptake and acid solubility]. 氟化物漱口水预防龋齿的研究。2氟吸收和酸溶解度]。
Koku Eisei Gakkai zasshi Pub Date : 1980-07-01
M Kani, T Kani, S Iino, A Isozaki, Y Takahashi
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引用次数: 0
[The contamination of airturbine handpieces and the disinfecting effect of ultraviolet rays]. [空气透平手机的污染及紫外线的消毒作用]。
Koku Eisei Gakkai zasshi Pub Date : 1980-07-01 DOI: 10.5834/JDH.30.103
T. Masui
{"title":"[The contamination of airturbine handpieces and the disinfecting effect of ultraviolet rays].","authors":"T. Masui","doi":"10.5834/JDH.30.103","DOIUrl":"https://doi.org/10.5834/JDH.30.103","url":null,"abstract":"It has been reported by various investigators that a greater proportion of the contamination on the part of dentists and their clinics is due to drilling with high-speed air-turbine handpieces. It is not only the dentist or his clinic that is contaminated, but also the handpieces themselves that probably become contaminated. For this reason, some kind of countermeasure is needed. But, because of their structure it is difficult to disinfect these instruments and, therefore, we must search for an easy method of disinfection in clinical environments.In the belief that ultraviolet ray, if it could be proved sufficiently effective for bacteriocidal purposes, would provide one easy means of disinfection, I carried out the following research. For study purposes, 3 different types of dental clinics were selected:1) those clinics where handpieces were not disinfected at all dnring dental treatment, 2) those clinics where handpieces were occasionally disinfected, and 3) those clinics where handpieces were disinfected every time they were employed.In these 3 different types of dental clinics, efforts were made to wipe off the handpieces for 5 days prior to the treatment in the first week and at the end of treatment daily in the second week.The number of bacterial coloneis between these two-week intervals were measured and analyzed.By way of determining the disinfecting effects of ultraviolet ray on different bacteria, Escherichia coli, Staphylococcus aureus and Bacillus subtilis were selectivly used to establish the density of ultraviolet ray and the time of bacteriocidal effect.In the last phase of the study, an apparatus was devised so that the entire surface of handpieces could be disinfected and the different bacteriocidal effects were comparatively examined.As a result of the present sudy, I arrived at the following salient conclusions.1. In dental clinics where handpieces were not routinely disinfected, the degree of bacterial infection was much larger than in other dental clincis where handpieces were regularly disinfected.2. Even in dental clinics in which handpieces were disinfected after every dental treatment, they were not always free from bacterial infection.3. The time required for disinfection of Escherichia coli, Staphylococcus aurens, and Bacillus subtilis by an application of ultraviolet ray could be much reduced by increasing the intensity of the ultraviolet ray.4. The bacteriocidal effects of ultraviolet ray were most prominently observed with Escherichia coli, followed by Staphylococcus aurens, and Bacillus subtilis.5. An ultraviolet disinfecting apparatus, devised by me for this study, was effective in killing the bacteria on handpieces within 5 minutes.","PeriodicalId":76075,"journal":{"name":"Koku Eisei Gakkai zasshi","volume":"1 1","pages":"41-51"},"PeriodicalIF":0.0,"publicationDate":"1980-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89869550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[The correlation of factors concerning dental plaque control. The cumulative analysis of variance of multiple-way classification]. 牙菌斑控制因素的相关性研究。多元分类的方差累积分析[j]。
Koku Eisei Gakkai zasshi Pub Date : 1980-07-01
K Saito, K Futakami, K Shibuya, J Kishi, A Amimoto
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引用次数: 0
[The correlation of factors concerning dental plaque control. The cumulative analysis of variance of multiple-way classification]. 牙菌斑控制因素的相关性研究。多元分类的方差累积分析[j]。
Koku Eisei Gakkai zasshi Pub Date : 1980-07-01 DOI: 10.5834/JDH.30.72
K. Saito, K. Futakami, K. Shibuya, J. Kishi, A. Amimoto
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引用次数: 0
Isolation of hemagglutinin from Streptococcus sanguis ATCC 10557. 血链球菌ATCC 10557血凝素的分离。
Koku Eisei Gakkai zasshi Pub Date : 1980-07-01 DOI: 10.5834/JDH.30.144
K. Nagata, S. Shibata, H. Tamagawa, A. Tsunemitsu, H. Nonaka, R. Nakamura
{"title":"Isolation of hemagglutinin from Streptococcus sanguis ATCC 10557.","authors":"K. Nagata, S. Shibata, H. Tamagawa, A. Tsunemitsu, H. Nonaka, R. Nakamura","doi":"10.5834/JDH.30.144","DOIUrl":"https://doi.org/10.5834/JDH.30.144","url":null,"abstract":"The hemagglutinin (HA) of S. sanguis ATCC 10557 was apparently present on the cell surfaces and released by the treatment with freezing and thawing. An affinity chromatography on D-galactose binding-Bio-Gel P-2 was significantly effective in purifying the HA.","PeriodicalId":76075,"journal":{"name":"Koku Eisei Gakkai zasshi","volume":"148 1","pages":"82-7"},"PeriodicalIF":0.0,"publicationDate":"1980-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74904419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
[The contamination of airturbine handpieces and the disinfecting effect of ultraviolet rays]. [空气透平手机的污染及紫外线的消毒作用]。
Koku Eisei Gakkai zasshi Pub Date : 1980-07-01
T Masui
{"title":"[The contamination of airturbine handpieces and the disinfecting effect of ultraviolet rays].","authors":"T Masui","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76075,"journal":{"name":"Koku Eisei Gakkai zasshi","volume":"30 2","pages":"41-51"},"PeriodicalIF":0.0,"publicationDate":"1980-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"18053805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Regional and age-related variations in solubility and fluoride concentration on the surface of human tooth enamel]. [人类牙釉质表面溶解度和氟化物浓度的区域和年龄相关变化]。
Koku Eisei Gakkai zasshi Pub Date : 1980-07-01
T Ishii
{"title":"[Regional and age-related variations in solubility and fluoride concentration on the surface of human tooth enamel].","authors":"T Ishii","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76075,"journal":{"name":"Koku Eisei Gakkai zasshi","volume":"30 2","pages":"64-81"},"PeriodicalIF":0.0,"publicationDate":"1980-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17985700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Studies on fluoride mouth-rinsing solution for dental caries prevention. I. Electron probe microanalysis and X-ray diffraction analysis]. 氟化物漱口水预防龋齿的研究。1 .电子探针显微分析和x射线衍射分析。
Koku Eisei Gakkai zasshi Pub Date : 1980-07-01
M Kani, T Kani, Y Takahashi, A Isozaki, S Iino
{"title":"[Studies on fluoride mouth-rinsing solution for dental caries prevention. I. Electron probe microanalysis and X-ray diffraction analysis].","authors":"M Kani, T Kani, Y Takahashi, A Isozaki, S Iino","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76075,"journal":{"name":"Koku Eisei Gakkai zasshi","volume":"30 2","pages":"88-97"},"PeriodicalIF":0.0,"publicationDate":"1980-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"17985702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Studies on fluoride mouth-rinsing solution for dental caries prevention. I. Electron probe microanalysis and X-ray diffraction analysis]. 氟化物漱口水预防龋齿的研究。1 .电子探针显微分析和x射线衍射分析。
Koku Eisei Gakkai zasshi Pub Date : 1980-07-01 DOI: 10.5834/jdh.30.160
M. Kani, T. Kani, Y. Takahashi, A. Isozaki, S. Iino
{"title":"[Studies on fluoride mouth-rinsing solution for dental caries prevention. I. Electron probe microanalysis and X-ray diffraction analysis].","authors":"M. Kani, T. Kani, Y. Takahashi, A. Isozaki, S. Iino","doi":"10.5834/jdh.30.160","DOIUrl":"https://doi.org/10.5834/jdh.30.160","url":null,"abstract":"","PeriodicalId":76075,"journal":{"name":"Koku Eisei Gakkai zasshi","volume":"8 1","pages":"88-97"},"PeriodicalIF":0.0,"publicationDate":"1980-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75734007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[The clinical effect on plaque control of dentifrice containing dextranase]. 含葡聚糖酶牙膏对菌斑控制的临床效果。
Koku Eisei Gakkai zasshi Pub Date : 1980-07-01 DOI: 10.5834/JDH.30.114
T. Kitamura, S. Moriguchi, E. Terada, K. Saito, K. Futakami
{"title":"[The clinical effect on plaque control of dentifrice containing dextranase].","authors":"T. Kitamura, S. Moriguchi, E. Terada, K. Saito, K. Futakami","doi":"10.5834/JDH.30.114","DOIUrl":"https://doi.org/10.5834/JDH.30.114","url":null,"abstract":"In general, dextranase is an effective plaque control agent which enzymatically resolves and removes dental plaque.In this study, the effect on plaque control of dextranase prepared from chaetomium gracile and added to a dentifrice was examined in clinical tests.Sixty-two male subjects aged about thirty to fifty and employed in a factory, were divided into two groups. Each group used a test dentifrice containing 2000 units of dextranase per grain and a placebo dentifrice without dextranase for one month. Then the OHI was evaluated.Regarding the debris-index, reduction rates of the test and the placebo dentifrice groups were 62.3 and 34.4%, respectively, and a statistically significant difference (P<0.01) was observed between them.On the other hand, in the calculus-index, reduction rates of the test and the placebo dentifrice groups were 76.5 and 74.9% respectively. Their effects were almost the same and there was no statistically significant difference.These results suggested that an effect on plaque control of dextranase could be expected in clinical use, but that it would have on effect on the reduction of calculus.","PeriodicalId":76075,"journal":{"name":"Koku Eisei Gakkai zasshi","volume":"6 1","pages":"52-63"},"PeriodicalIF":0.0,"publicationDate":"1980-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81585657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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